Relevant bibliographies by topics / DFMA

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'DFMA'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 April 2022

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Journal articles on the topic "DFMA"

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Annamalai, K., C. D. Naiju, S. Karthik, and M. Mohan Prashanth. "Early Cost Estimate of Product during Design Stage Using Design for Manufacturing and Assembly (DFMA) Principles." Advanced Materials Research 622-623 (December 2012): 540–44. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.540.

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Application of Design for Manufacturing (DFM) and Design for Assembly (DFA) methodologies can be beneficial to industries involved in the design and development of products. Improper design decisions are responsible for higher manufacturing cost for a product. Thus it is important to include DFMA by combining principles of both DFM and DFA principle early in the design process. This paper presents a case study of manufacture and assembly costs estimation during the design phase of washing machine and which is to be manufactured in company located in India, and intends to make this economically feasible. Solidworks and Solidview software tool were used to generate CAD models which were further analysed using DFMA software tool. The result obtained was accepted by industry and match with the market value of washing machine.
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Slocum, R. D., A. J. Bitonti, P. P. McCann, and R. P. Feirer. "dl-α-difluoromethyl[3,4-3H]arginine metabolism in tobacco and mammalian cells. Inhibition of ornithine decarboxylase activity after arginase-mediated hydrolysis of dl-α-difluoromethylarginine to dl-α-difluoromethylornithine." Biochemical Journal 255, no. 1 (October 1, 1988): 197–202. http://dx.doi.org/10.1042/bj2550197.

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DL-alpha-Difluoromethylarginine (DFMA) is an enzyme-activated irreversible inhibitor of arginine decarboxylase (ADC) in vitro. DFMA has also been shown to inhibit ADC activities in a variety of plants and bacteria in vivo. However, we questioned the specificity of this inhibitor for ADC in tobacco ovary tissues, since ornithine decarboxylase (ODC) activity was strongly inhibited as well. We now show that [3,4-3H]DFMA is metabolized to DL-alpha-difluoromethyl[3,4-3H]ornithine [(3,4-3H]DFMO), the analogous mechanism-based inhibitor of ODC, by tobacco tissues in vivo. Both tobacco and mammalian (mouse, bovine) arginases (EC 3.5.3.1) hydrolyse DFMA to DFMO in vitro, suggesting a role for this enzyme in mediating the indirect inhibition of ODC by DFMA in tobacco. These results suggest that DFMA may have other effects, in addition to the inhibition of ADC, in tissues containing high arginase activities. The recent development of potent agmatine-based ADC inhibitors should permit selective inhibition of ADC, rather than ODC, in such tissues, since agmatine is not a substrate for arginase.
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Wang, Shiow Y., and Miklos Faust. "Changes in Polyamine Content during Dormancy in Flower Buds of `Anna' Apple." Journal of the American Society for Horticultural Science 119, no. 1 (January 1994): 70–73. http://dx.doi.org/10.21273/jashs.119.1.70.

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Polyamine, putrescine, spermidine, and spermine contents were determined during endodormancy in the buds of low-chilling-requiring `Anna' apples (Malus domestics Borkh.). Putrescine, spermidine, and spermine contents increased greatly in buds when their chilling requirement was satisfied. Polyamine biosynthetic inhibitors α -difluoromethylarginine (DFMA) or α -difluoromethylornithine (DFMO) reduced bud break and bud growth in concert with decreased polyamine titers. DFMO or DFMA did not inhibit bud break when it was applied to buds after they received the full chilling requirement. DFMO was more inhibitory than DFMA. The polyamine requirement was much higher for bud growth and bud development than during differentiation and bud break.
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Harik, Ramy F., and Najwa Sahmrani. "DFMA+, A Quantitative DFMA Methodology." Computer-Aided Design and Applications 7, no. 5 (January 2010): 701–9. http://dx.doi.org/10.3722/cadaps.2010.701-709.

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Saniewska, Alicja. "Effect of polyamine biosynthesis inhibitors on in vitro growth of Phyllosticta antirrhini Sydow and on the infection of Antirrhinum majus L. by the pathogen." Acta Agrobotanica 52, no. 1-2 (2013): 11–18. http://dx.doi.org/10.5586/aa.1999.002.

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Polyamine biosynthesis inhibitors, DL-α-difluromethylornithine (DFMO) and DL-α-difluromethylarginine (DFMA) at concentrations of 1,0 and 3,0 mM greatly inhibited mycelial growth of <em>Phyllosticta antirrhini</em> on Czapek Dox Agar (CDA). Putrescine at the concentration of 1,0 mM completely reversed the inhibitory effect of DFMO but only partially that of DFMA. Both polyamine biosynthesis inhibitors at concentrations 1,0 and 3,0 mM applied preventively and curatively strongly inhibited the development of the pathogen on snapdragon leaves.
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Saftner, Robert A., William S. Conway, and Carl E. Sams. "Effects of Some Polyamine Biosynthesis Inhibitors and Calcium Chloride on In Vitro Growth and Decay Development in Apples Caused by Botrytis cinerea and Penicillium expansum." Journal of the American Society for Horticultural Science 122, no. 3 (May 1997): 380–85. http://dx.doi.org/10.21273/jashs.122.3.380.

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Three polyamine biosynthesis inhibitors, α-difluoromethylornithine (DFMO), α-difluoromethylarginine (DFMA), and α-methylornithine (MeOrn), alone and in combination with CaCl2, were tested for their ability to reduce in vitro growth and soft rot development in apple (Malus domestica Borkh.) fruit caused by Botrytis cinerea Pers.:Fr. and Penicillium expansum Link. All three inhibitors reduced the in vitro growth of the pathogens. Calcium had no effect on fungal growth in vitro. Pressure infiltration of millimolar concentrations of DFMO or DFMA or 25 g·L-1 CaCl2 solutions into apples reduced subsequent soft rot development by B. cinerea and P. expansum >40%. A combination treatment of Ca and DFMO or DFMA reduced decay >67%. Treatment of apples with MeOrn was less effective at inhibiting decay development. None of the inhibitors affected polyamine levels in apple cortical tissues. Some injury to the fruit surface was observed with Ca treatments. Fruit treated with Ca and any of the inhibitors were less firm than those treated with Ca alone. Specific polyamine biosynthesis inhibitors in combination with Ca may prove useful in reducing postharvest decay in apples.
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Rudiyantoro, Rudiyantoro, and Yunia Dwie Nurcahyanie. "Metodologi Eco Desain Yang Digunakan Untuk Pengembangan Produk Furniture Berbasis Logam Secara Berkelanjutan." WAKTU: Jurnal Teknik UNIPA 13, no. 1 (March 23, 2016): 19–29. http://dx.doi.org/10.36456/waktu.v13i1.23.

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Pengembangan produk harus memikirkan detail baik pemilihan material, proses produksi, proses perkitan, sampai pada bagaimana perawatan produk setelah diterima konsumen. Semua menjai satu proses panjang menuju keberlanjutan hidup produk. Pada prinsipnya semakin sederhana material, menggunakan finishing non toxic, sistem sambungan sederhana, menggunakan kemasan yang berbahan ramah lingkungan, ukuran kemasan diperkecil. Dengan proses yang disederhanakan, mesin produksi yang digunakan bisa lebih ditekan, artinya semakin sedikit mesin produksi yang digunakan, energi untuk menggerakkan mesin bisa lebih hemat. Semakin sedikit jumlah material yang digunakan semakin sedikit limbah paska umur hidup produk berakhir. Pemilihan bahan sangat berpengaruh pada proses daur ulang, guna ulang produk. Dengan metode desain yang memperhitungkan perakitan(DfA), manufaktur (DfM), perawatan (DfMaintanance) maka sebuah produk akan bertahan lebih lama umur hidupnya (Sustainable Product Development-SPD), proses produksi lebih disingkat, energi lebih hemat, kemasan bisa lebih ringkas. Kata Kunci : Desain, DfA,DfM,DfMa, SpD
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Guo, Ping, Xiao Zhao, and Zheng Gang Xiao. "Synthesis, Morphology and Hydrophobicity of Core-Shell Fluoinated Copolymer Latexes." Applied Mechanics and Materials 456 (October 2013): 471–73. http://dx.doi.org/10.4028/www.scientific.net/amm.456.471.

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The fluoroacrylate copolymer latexes (Poly (BA-MMA-DFMA) latex) with a fluorinated shell were successfully synthesized by semi-continuous seeded emulsion polymerization. The chemical structure of the latex was characterized by Fourier transform infrared (FTIR) and 1H-NMR analysis. Glass transition temperatures (Tg) of Poly (BA-MMA-DFMA) latex were confirmed by DSC analysis. Transmission electron microscopy (TEM) showed the microstructure of Poly (BA-MMA-DFMA) latex. The water absorption ratio and the water contact angle (WCA) of films were studied. Results showed the Poly (BA-MMA-DFMA) latex had two distinct Tg and exhibited core-shell structure. Moreover, Poly (BA-MMA-DFMA) film with 15wt% DFMA can exhibit lower water absorption ratio and higher contact angle.
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Parker, Miles. "Breathing easier with DFMA." World Class Design to Manufacture 2, no. 6 (December 1995): 17–20. http://dx.doi.org/10.1108/09642369310104255.

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Raplee, Jack. "DFMA to RP, ASAP." Mechanical Engineering 121, no. 09 (September 1, 1999): 72–74. http://dx.doi.org/10.1115/1.1999-sep-5.

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Manufacturing companies are turning increasingly to rapid prototyping (RP) to perform pre-assembly testing and improve the quality of the final product. Manufacturers also have begun to complement their RP practices using design for manufacture and assembly methodology. Design for assembly lowers the complexity of products through parts reduction and enables manufacturers to quantify assembly times and costs. Users are prompted to consider each part and decide if it must be separate from others in the assembly, leading to systematic simplification of design. The four approaches by which design for manufacturer (DFMA) software analyzes product configurations incorporate design for assembly, design for manufacture, design for service, and design for environment. Using design for assembly can reduce the number of parts in the product, but can increase the complexity of the parts that remain. Rapid prototyping combined with DFMA tools not only can determine if a product will perform its desired functions. According to an expert, when early manufacturing process planning is performed using DFMA and RP, it is synergistic.
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Dissertations / Theses on the topic "DFMA"

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Torkelsson, Olle, and Markus Dauksz. "DFMA : A Methodology Study and Method Development." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-9562.

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Volvo Cars Corporation (VCC) is devoted to Lean and Six Sigma, and has lately considered an imple-mentation of Design for Manufacturing and Assembly (DFMA) with the purpose of improving their product design process and production. The goal for this project work is therefore to investigate if DFMA is a beneficial method for VCC to use, how DFMA can be used and suggest a DFMA method. A literature study is performed as a starting point to understand DFMA methods and its possibilities. Scientific articles, technical books and online sources is used during the study in order to gather in-formation regarding DFMA implementations, application areas, approaches and potential risks that need to be eliminated for a successful implementation. In order to map the product development and manufacturing processes of VCC interviews are per-formed. The interviews also gathered information regarding what VCC employees thinks of DFMA and how they wish to use it. This information is compiled into a demand specification where the de-mands are weighted after importance by the interviewees. After the pre-study, three idea generation sessions is performed with three different focus groups. The generated ideas are then evaluated and classified. The remaining ideas are classified with the purpose of enabling the possibility to use a morphological chart to build whole concepts from the single ideas. Three concepts are chosen amongst the generated concepts. These concepts are then evaluated against the weighted demand specification. The concept considered most suitable is further devel-oped which resulted in a proposed DFMA method for VCC. A case study on a product is performed in order to communicate, test and evaluate the final DFMA method. The project is rounded off with discussions regarding DFMA and the suggested method from sustain-ability point of view and how to motivate usage. All results and discussions from the project are handed over to the company, enabling further research on a possible implementation of DFMA in the organization.
Volvo Cars Corporation arbetar hängivet efter metoderna Lean och Sex Sigma och har avsikt att im-plementera Design for Manufacturing and Assembly (DFMA) i syfte att förbättra deras produkt- och produktutvecklingsprocess. Målet med detta arbete är att undersöka om DFMA är en värdefull me-tod för VCC att använda och hur metoden kan tänkas användas och implementeras inom organisat-ionen. Som utgångspunkt för att förstå DFMA metoden och dess möjligheter genomförs en litteraturstudie. Under studien granskades aktuella vetenskapliga artiklar, tekniska böcker och webbkällor i syfte att samla information om DFMA-implementeringar, användningsområden, tillvägagångsätt och potenti-ella risker som behövs elimineras för en lyckad implementation av metoden. Vidare utförs intervjuer i syfte att kartlägga produktutvecklings- och tillverkningsprocessen samt samla information om hur anställda ställer sig till, och önskar använda DFMA. Denna information sammanställs sedan till en kravspecifikation där kraven i sin tur viktas av intervjuobjekten efter hur viktiga de anses vara. Tre idégenereringssessioner utförs därefter med tre olika fokusgrupper. Dessa idéer gallras sedan ut och klassificeras för att sedan kombineras med hjälp av en morfologisk tabell i syfte att bygga kon-cept av de enskilda idéerna. Tre koncept väljs ut bland de genererade koncepten. Dessa koncept utvärderas sedan mot varandra med kravspecifikationen som bedömningsskala. Det koncept som bedöms som mest lämpligt vidare-utvecklas och en föreslagen metod för VCC tas fram. För att testa och illustrera den slutgiltiga meto-den genomförs en fallstudie på en produkt. Arbetet rundas av med diskussioner kring DFMA och den föreslagna metoden ur både hållbarhets-synpunkt och motivationssynpunkt. Samtliga resultat och diskussioner överlämnas sedan till företa-get för att möjliggöra vidare undersökningar kring en eventuell implementation av DFMA.
DFMA FMEA DFM DFA Lean Produktdesign Metodutveckling
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Jokelainen, T. (Tero). "Rakenteiden keventämisen DFMA-prosessi." Master's thesis, University of Oulu, 2016. http://urn.fi/URN:NBN:fi:oulu-201602111164.

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Tämän työn tarkoituksena on selvittää keveiden konerakenteiden suunnittelua. Työ etenee DFMA-prosessin avulla, mikä tarkoittaa tuotteen suunnittelua kokoonpanon ja valmistuksen kannalta. Tutkimuksen kohteena on kennorakentaminen yhdistettynä laserhitsaukseen. Työssä pyritään löytämään näiden edut sekä löytämään optimaalinen kennorakenne ominaistaajuuksien ja lommahduskokeiden avulla. Osana työtä on ollut osallistuminen Wärtsilän moottorin öljyaltaan uudelleensuunnitteluun. Suunnittelun tuloksena tuli aikaisempaa kevyempi rakenne sekä sen ominaistaajuudet nousivat halutulle tasolle. Rakenne toteutettiin laserhitsattuna ohutlevykennorakenteena. Työssä tehtiin FEM-malleja kennolevyrakenteille ja yksittäiselle osakennorakenteelle. Näiden avulla saatiin tietoa rakenteiden käyttäytymisestä eri kuormitustilanteissa. FEM-laskennan paikkansapitävyys vahvistettiin vertaamalla laskennan tuloksia käytännön kokeiden tuloksiin. Aaltopeltikennolevyn mitoitus perustuu sille asetettuihin lujuusvaatimuksiin ja se on tulos levynpaksuuksien, materiaalin lujuuden, ytimen korkeuden ja sen sivun kulman muodostamasta yhtälöstä
The aim of this thesis was to clarify the ways of designing and building lightweight structures from the DFMA-process point of view. The main research subject was in finding the main benefits of laser-welded sandwich structures (corrugated cores), and in the optimization of these structures by natural frequencies and buckling tests. One part of this work was to participate in redesigning an oil sump for Wärtsilä’s motor, which is mostly made from sandwich structures and welded together with laser. The result was that the new lightweight oil sump made from sandwich structures was almost 35 % lighter than the original, and natural frequencies increased to the target level. FEM-models were used to investigate the behavior of sandwich plate structures and single-hat profile cores. Practical tests were also done for the latter, and the results were compared to FEM-models. The dimensioning of corrugated core sandwich panels is based on its strength requirements, and it is a result of an equation which is formed by the thickness and the strength of the material, as well as the height and the angle of the core
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Niemi, H. (Henri). "DFMA-prosessi lujista teräksistä valmistettujen keveiden rakenteiden suunnittelussa." Master's thesis, University of Oulu, 2018. http://urn.fi/URN:NBN:fi:oulu-201803081329.

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Tässä työssä tutkittiin valmistus- ja kokoonpanoystävällisen suunnitteluperiaatteen soveltamista ultralujista teräksistä valmistettujen keveiden rakenteiden suunnittelussa. Työn tärkein tavoite oli selvittää, millaisen suunnitteluprosessin avulla ultralujien terästen materiaaliominaisuudet voidaan parhaiten siirtää tuotteiden ominaisuuksiksi. Tuotteissa tavoiteltavia ominaisuuksia olivat rakenteen lujuus, keveys ja kustannustehokkuus. Tämän vuoksi oli määriteltävä, mitkä asiat korostuvat suunnittelun näkökulmasta ultralujan teräksen tapauksessa. Lisäksi työn tavoitteena oli edistää ultralujien terästen käyttöä lisäämällä erityisesti Pohjois-Suomessa toimivien pk-yritysten tietämystä ultralujista teräksistä. Työ koostuu kirjallisuustutkimuksesta ja soveltavasta osuudesta. Kirjallisuustutkimuksessa perehdyttiin erityisesti DFMA-suunnittelumenetelmään ja sen etuihin verrattuna perinteiseen suunnittelutapaan. Lisäksi kartoitettiin ultralujien teräslaatujen ominaisuuksia sekä valmistusmenetelmiä, joiden avulla ominaisuudet voidaan hyödyntää. Kirjallisuustutkimuksessa esiteltiin myös tärkeimmät suunnittelussa huomioitavat lujuustekniset näkökulmat sekä rakenteen geometrian optimointi. Kirjallisuustutkimuksen lopuksi esiteltiin uusi DFMA-suunnittelu -menetelmään pohjautuva lähestymistapa, joka on kehitetty ultralujia teräksiä käyttävien pk-yritysten tarpeisiin. Uutta lähestymistapaa nimitetään laajennetuksi DFMA-prosessiksi. Kirjallisuustutkimuksen perusteella DFMA-suunnittelumenetelmän käytössä on keskeistä jakaa suunnitteluprosessi konseptisuunnitteluun ja yksityiskohtaiseen suunnitteluun. Konseptisuunnitteluvaiheessa on tärkeintä asettaa tuotevaatimukset täsmällisesti, luoda tuoterakenteesta yksinkertainen sekä valita kustannustehokkaimmat valmistusmenetelmät sekä materiaalit. Konseptisuunnittelun tuloksena on täsmällinen tuotekonsepti, joka kehitetään yksityiskohtaisessa suunnittelussa viimeistellyiksi tuote- ja valmistussuunnitelmiksi. Yksityiskohtaisessa suunnittelussa on tärkeintä optimoida tuotteen osat valittujen valmistusmenetelmien kannalta, jotta eri menetelmien ominaisuudet ja kapasiteetti voidaan hyödyntää. Käytännön suunnittelutyössä ultralujien terästen kohdalla korostuvat stabiliteettiongelmien ja väsymisvaurioiden estäminen, tietokoneavusteisten suunnittelutyökalujen käyttö ja rakenteen geometrian optimointi sekä riittävä valmistusmenetelmien tuntemus. Erityisesti laserhitsaus ja -leikkaus, vesisuihkuleikkaus sekä särmäys soveltuvat hyvin ultralujien terästen työstömenetelmiksi. Laajennettu DFMA-prosessi sisältää yleisen DFMA-menetelmän mukaiset suunnitteluvaiheet ja tavoitteet. Konseptisuunnittelussa tavoitteisiin pyritään erityisesti yksinkertaistetun 3D-mallinnuksen, nopeiden lujuusanalyysien sekä topologian optimoinnin avulla. Yksityiskohtainen suunnittelu on iteratiivinen kehitysprosessi, jossa hyödynnetään 3D-suunnittelu- sekä FEA -ohjelmistoja. Työn soveltava osuus sisältää suunnitteluraportin, jolla havainnollistettiin laajennetun DFMA-prosessin käyttämistä suunnittelutyön opastajana. Raportissa esitettiin ultralujasta teräksestä valmistetun ralliauton prototyypin rungon suunnitteluprosessin vaiheet. Soveltavan osuuden sisältämien esimerkkien avulla kirjallisuustutkimuksen tuloksia voidaan hyödyntää pk-yrityksissä suunniteltaessa keveitä tuotteita ultralujista teräksistä
In this thesis, the use of the Design for Manufacture and Assembly (DFMA) design method in design of lightweight Ultra-High Strength Steel (UHSS) structures was investigated. The most important target of this study was to solve that what kind of a design process is needed so that the material properties of ultra-high strength steels can be most effectively changed into product features. Required product features were strength, lightness and cost-effectiveness. Because of this it was necessary to define which aspects are highlighted with the UHSS materials from the point of view of design work. Another target of this thesis was to distribute knowledge of the ultra-high strength steels and to expand their use in small and medium enterprises (SME) located in northern Finland. The study consists of the literary research section and applied section. In the literary section, particularly the common DFMA design method and its benefits compared with the traditional design methodology were surveyed. Also, the properties of the UHSS materials and suitable manufacturing methods were discussed. The most important aspects of mechanics of materials and optimization of structure’s topology were introduced in the literature section. Presented viewpoints are essential to be considered in design work. A new DFMA-based approach developed for needs of SMEs using ultra high strength steels was presented in the latter part of the literary section. The new approach is called the extended DFMA process. On the grounds of the literary study it is important to divide a design process into a concept planning phase and a detailed design phase in the use of the common DFMA design method. In the concept planning phase, the most important things to do are to set clear product requirements, simplify the product structure and to choose the most cost-effective manufacturing methods and materials. The concept planning results in an exact design concept which is developed into a finished product and manufacturing plan during the detailed design phase. In the detailed design phase, the most important thing is to optimize parts of the product from the point of view of chosen manufacturing methods so that the features and capacity of the different methods can be utilized. In practical design work with UHSSs, the prevention of stability problems and fatigue failures, the use of Computer-Aided Engineering (CAE) tools, the optimization of structure’s geometry and sufficient knowledge of manufacturing methods are highlighted. Especially laser welding, laser cutting, abrasive water jet cutting and press brake bending are suitable work methods for UHSS. The extended DFMA process contains the design phases and objectives which are in accordance with the common DFMA method. In the concept planning the objectives are tried to achieve with the help of the simplified 3D modelling, fast analyses of strength and the use of topology optimization. The detailed design phase is an iterative development process where 3D design and FEA software are utilized. The applied section of this thesis contains a planning report which was used to illustrate the use of the extended DFMA process as a guide in design work. In the report, the design process stages of a rally car prototype frame manufactured from UHSS were presented. With the help of the examples of the applied section the results of the literature research section can be utilized in SMEs when designing light products from ultra-high strength steels
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Barlas, Sofia, and Adriana Buerba. "Analyze, consolidate and improve the product development process at Parker Hannifin QCDE through implementation of DFMA principles." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-13406.

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Parker Hannifin QCDE aim to eliminate as much wasted time, materials and resources as achievable by implementing Design for Manufacturing and Assembly principles into a modified version of their Product Development Process. The modified Product Development Process was developed within this project with the objective of aiding the company to remain competitive within their field, as well as continue to efficiently develop and produce high quality products.   A literature study was performed to gain a greater understanding of the multiple Design for Excellence methods and their possibilities to enhance the Product Development Process at Parker Hannifin QCDE. The literature study included various sources such as academic books and scientific articles.   An empirical study was conducted and the use of the current Internal Product Development Process was evaluated in conjunction with a detailed evaluation of the designated coupling. An additional aspect that was explored includes an evaluation of the extent of Design for Manufacturing and Assembly that is implemented into the current Internal Product Development Process.   The Generation chapter of this thesis outlines the sequence and process implemented for generating the modified Internal Product Development Process and implementing Design for Manufacturing and Assembly. The results of this thesis project included implementing Design for Manufacturing and Assembly in the form of checklists. The multiple Design for Excellence checklists were inspired in part by the information obtained from the literature study and the authors interpretation. The finished concept has been provided to Parker Hannifin QCDE in the form of a pamphlet including instructions of how to implement the checklists into the modified Internal Product development process.   The discussion chapter within this report consists of a conclusion and deliberation regarding the methodology used within this thesis. The results obtained from this thesis have been dissected and evaluated along with implications and potential weaknesses in the work.
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Paz, Bernales Huáscar. "Metodología DFMA de rediseño del conjunto estructural electrosoldado de una máquina." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/385121.

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In this thesis the methodology DFMA (Design for manufacturing and assembly) is applied to the efficient redesign of a bench of an industrial welded construction equipment in order to simplify the solutions and reduce costs. For this, the overall methodology DFMA was customized to the particularities of this type of structural base, although with the characteristics and stages of Concurrent Engineering. The first step of the methodology was to capture the technical functions to be performed by the bedplate, based on the analysis of an existing industrial equipment. For this, a graphic representation of captured functions could be integrated in the same CAD system that allowed synthesizing knowledge and enabling its transmission to the conceptual designers. Subsequently, in accordance with the possibilities of the layout design of the structural assembly, the optimal combination of materials and manufacturing processes for simplifying the design was determined. With this, it was proceeded to the interpretation and personalization of those guidelines aimed at manufacturing and assembly, in order to facilitate the generation of suggestions for simplifying design complexity. As a support to make a quantitative comparison between the redesigned solution and the original design, it was proposed to use a tool for assessing the complexity, which has a direct effect on production costs. To illustrate the results of the application of the methodology, it is shown a case redesign of a bedplate of a soil desintegrator for the ceramics industry to the stage of embodiment design. Finally conclusions and possible future work are presented.
En la present tesis doctoral es va aplicar la metodologia DFMA (Disseny per la fabricació i el muntatge) al redisseny eficient d'una bancada d'un equip industrial de construcció electrosoldada amb la finalitat de simplificar les solucions i abaratir els costos. Per tal efecte es va personalitzar la metodologia DFMA general per les particularitats d'aquest tipus de base estructural, encara que amb les característiques i etapes pròpies de l'Enginyeria Concurrent. El primer pas de la metodologia va consistir en capturar les funcions tècniques que havia de complir la bancada, en base a l'anàlisi d'un equip industrial existent. Per fer-ho, es va proposar una representació gràfica de funcions capturades que es poguessin integrar en el mateix sistema de disseny CAD, que sintetitzessin el coneixement i permetessin la seva transmissió als dissenyadors conceptuals. Posteriorment, d'acord amb les possibilitats del disseny de la disposició del conjunt estructural, es va determinar la combinació òptima de processos de fabricació i materials per la simplificació del disseny. Amb tot, es va procedir a la interpretació i personalització d'aquelles directrius orientades a la fabricació i el muntatge, amb l'objectiu de facilitar la generació de suggerències de simplificació de la complexitat del disseny. Com a suport per poder realitzar una comparativa quantitativa entre la solució redissenyada i la del disseny original, es va proposar utilitzar una eina d'avaluació de la complexitat, la qual té un efecte directe en els costos de producció. Amb la finalitat d'il·lustrar els resultats de l'aplicació de la metodologia, es mostra un cas de redisseny d'una bancada d'un desintegrador de terres per la industria ceràmica fins l'etapa de materialització. Per últim s'exposen les conclusions i possibles treballs futurs.
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Adler, Gustav Adolf. "Design and system integration of a rim jet solution utilizing DFMA." Thesis, KTH, Integrerad produktutveckling, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-281948.

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Moving a new innovative idea from the drawing board to production is no easy feat. The Swedish sea rescue society (SSRS) has for the past years fostered a new design solution for their jet skis, a alternative water jet that removes the centre hub and utilises rim drive technology. The "Rim Jet" would help solve problems during rescue operations while at the same time be a starting point for SSRS zero-emission vision. To make this idea reality a first prototype is necessary for a proof of concept. Previous work on this project, conducted by three master students, resulted in a design that lacked feasibility. Through the implementation of Design for manufacture and Assembly (DFMA) on the rim jet a new itteration of the design is proposed. A practical and case based analysis of the DFMA method on a novel, non mass produced prototype was preformed discussing its advantages and disadvantages to generate a feasible, lighter, simpler and more cost efficient design. Complementing the redesign of the rim jet is a complete systems analysis of the jet ski including battery evaluation, systems integration and initial testing procedures. The final rim jet design illustrates the benefits of utilising DFMA within small, single product, projects. Implementing core elements of DFMA has proven to generate similar positive effects as intended for serial mass produced products normally associated with method.
Att föra en ny innovativ idé från ritbordet till produktion är ingen arbiträr process. Det Svenska Sjöräddningssamhället (SSRS) har under de senaste åren fostrat en ny designlösning till sina vattenskoter, en alternativ vattenjet som eliminerar centrumnavet och använder rim-drive teknologi. Rim Jetenskulle hjälpa till att lösa problem under räddningsoperationer samtidigt som den kan agera som utgångspunkt för SSRS-nollutsläppsvission. För att förverkliga denna idé är en första prototyp nödvändig för att bevisa om konceptet kan fungera. Tidigare arbete med detta projekt, genomfört av tre masterstudenter, resulterade i en design som ej gick att tillverka. Genom implementeringen av Design for manufacture and Assembly (DFMA) på rimjeten kan en ny designiteration läggas fram. En praktisk och fallbaserad analys av DFMA-metoden på en ny, icke massproducerad, prototyp genomfördes och dess fördelar och nackdelar diskuteras för att skapa en genomförbar, lättare, enklare och mer kostnadseffektiv design. Som komplement till den nya designen kompletteras även arbetet med en en fullständig systemanalys av vettenskootern relaterat till betterilösning, systemintegration och initiala testutföranden. Den slutliga rim jet designen illustrerar fördelarna med att använda DFMA inom små, enskilda produktprojekt. Implementeringen av kärnelement från DFMA har påvisat liknande positiva effekter som avsedda för serieproducerade produkter som normalt är associerade med metoden.
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Malewschik, Fernando Henrique. "BIM e DFMA visando a redução da quantidade de partes da construção." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/46014.

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Orientador : Prof. Dr. Sergio Scheer
Acompanha CD-ROM
Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Tecnologia, Programa de Pós-Graduação em Construção Civil. Defesa: Curitiba, 2016
Inclui referências : f. 104-108
Area de concentração : Ambiente construído e gestão
Resumo: A construção civil tem apresentado produtividade baixa nos últimos anos e que não melhorou na mesma proporção que outros setores da economia, como o automobilístico ou de manufatura. Algumas alternativas vêm sendo pensadas e implantadas para melhorar esse quadro enfrentado pela indústria da construção civil (ICC). Dentre elas, a Modelagem da Informação da Construção (BIM). Entretanto, salienta-se que o que chama a atenção nos setores cuja produtividade é crescente, refere-se à alta industrialização e automatização da fabricação de produtos. Sabe-se que um dos processos responsáveis por esse aumento de produtividade é a possibilidade de reduzir o número de partes de um projeto por intermédio do projeto para fabricação e montagem (DFMA), atualmente adotado pelo setor aeroespacial, automobilístico e de manufatura. A hipótese levantada foi a de que a aplicação de BIM e DFMA em conjunto no processo de projeto pode diminuir a quantidade de "partes da construção" e, consequentemente, trazer diversos benefícios para os projetos. Nesse sentido, esta dissertação teve como objetivo utilizar o processo BIM aliado com DFMA para o desenvolvimento de um projeto visando a redução do número de "partes da construção". O método utilizado foi o Design Science Research e contemplou uma revisão bibliográfica de fontes primárias e de artigos publicados em periódicos de alto impacto e a elaboração de um artefato utilizando BIM e DFMA em conjunto. Foi desenvolvida uma modelagem de um projeto residencial, a partir de projetos convencionais. Esse modelo foi desenvolvido posteriormente através da metodologia DFMA com o objetivo de reduzir a quantidade de partes da construção utilizando outras soluções alternativas pré-fabricadas ou industrializadas. Após análise do artefato entende-se que foi possível reduzir a quantidade de partes do projeto e que nesse caso específico houve expressiva redução da quantidade de partes (98,35%). A partir da revisão bibliográfica, pode-se afirmar que a diminuição da quantidade de partes de um produto gera uma melhora na análise do projeto. Pode-se afirmar também que a redução da quantidade de partes pode gerar muitos benefícios ao projeto, como maior controle do projeto, maior velocidade de execução e montagem, possuir menos informação a ser trocada durante a montagem e execução do produto, gerar redução de custos, dentre outros benefícios possíveis. Também, constatou-se que se o projeto utiliza soluções prémoldadas e modulares, BIM se torna uma ferramenta poderosa para o levantamento da quantidade de partes da construção. Palavras chave: BIM, DFMA, ICC, partes da construção.
Abstract: The productivity of the Architecture, Engineering and Construction (AEC) industry in recent years has not grown in the same proportion as it has in other sectors, such as automotive or manufacturing. Some alternatives are emerging to improve this situation faced by the AEC industry, among them, the Building Information Modeling (BIM). However, one important aspect observed in those sectors whose productivity is growing, refers to the high industrialization and automation of the manufacturing products. It is known that one of the processes responsible for this increased productivity is the possibility of reducing the number of parts of a building design through the Design for Manufacturing and Assembly (DFMA), currently adopted by the aerospace, manufacturing and automotive areas. The hypothesis was that the application of BIM and DFMA together in the design process may decrease the amount of "construction parts" and therefore have various benefits for the projects. In this sense, this work aimed to use the BIM process combined with DFMA to develop a project aimed at reducing the number of "construction parts." The method used was the Design Science Research and included a literature review of primary sources and articles published in high impact journals on the subject and the development of an artifact using BIM and DFMA together. A residential project model was developed from conventional designs. This model was developed by DFMA method to reduce the number of construction parts using prefabricated or industrialized solutions. After artifact analysis was possible to reduce the number of parts and in this particular case there was a significant reduction in the construction parts (98,35%). From the literature review, it can be said that the decrease in number of parts generates an improvement in project analysis. One can also say that reducing the number of parts can generate many benefits to the project as greater control of the project, greater speed of execution and assembly, less information to be exchanged during assembly, cost reduction, among other possible benefits. Also, it was found that if the design utilizes modular or industrialized solutions, BIM becomes a powerful tool for quantify construction parts. Keywords: BIM, DFMA, AEC, construction parts.
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8

Barbosa, Gustavo Franco. "Aplicação da metodologia DFMA - Design for Manufacturing and Assembly - no projeto e fabricação de aeronaves." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18145/tde-30012008-103011/.

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A indústria aeronáutica no Brasil tem se desenvolvido de modo acelerado em termos de desenvolvimento tecnológico e dos processos de fabricação aplicados. Com isso, tem se buscado melhores resultados durante o desenvolvimento do projeto e fabricação de aeronaves, visando uma melhor avaliação dos processos de fabricação, montagem, manutenção, confiabilidade e fatores humanos (ergonômicos). O intuito é aperfeiçoar a fabricação e simplificação da montagem dos conjuntos, de modo a facilitar a manufatura dos componentes que formarão o produto depois de acabado e tornar a montagem dos produtos aeronáuticos com o menor custo e da forma mais otimizada possível. Sendo assim, este trabalho visa o desenvolvimento de uma ferramenta que utiliza os conceitos de DFMA para aplicação específica no projeto e fabricação de aeronaves. O objetivo da ferramenta é auxiliar os engenheiros que atuam nas fases de desenvolvimento do avião, para que benefícios de facilidade de montagem possam ser alcançados com a utilização dos quadros de verificações. O trabalho inicia-se com a história da aviação, da indústria aeronáutica no mundo e no Brasil, e uma revisão teórica dos conceitos e princípios da metodologia DFMA. Em seguida é apresentado o ambiente da indústria aeronáutica, incluindo o processo de desenvolvimento integrado do produto, a implementação de projetos nestes segmentos e as fases de fabricação de uma aeronave. Na seqüência é apresentada a ferramenta de auxílio que foi desenvolvida em forma de quadros de análises, elaboradas com as regras e verificações a serem seguidas durante a criação do projeto, com o objetivo de consolidar os conhecimentos de manufatura e prevenir problemas futuros de montagem. Um estudo de caso é apresentado para evidenciar e comparar os resultados obtidos pela não aplicação efetiva dos conceitos da metodologia DFMA no desenvolvimento do projeto inicial, com os benefícios alcançados após a modificação do projeto baseado na aplicação dos conceitos de projeto para manufatura e utilização das tabelas. Por fim, os resultados são discutidos e a conclusão estabelecida.
Brazilian aeronautical industry has been developed faster and faster in terms of technology development and manufacturing processes. Thus, it has been planning to reach better results during the aircraft development and manufacturing phases, aiming to better evaluation of manufacturing processes, assembly, maintenance, capability and human factors (ergonomics). It is expected to improve the manufacturing and simplify the assembly to become easier the manufacturing of parts that will make the aircraft final assembly with low costs, high quality and the best optimized condition. So, the main objective of this study is to develop a guideline which uses the DFMA concepts for specific application on aircrafts design and manufacturing. The main goal of the guideline is to drive the engineers who work on aircraft development phases, about the manufacturing benefits that can be achieved when using the check list table of the guideline. This study starts with the aviation history and world and brazilian aeronautical industries and a theoretical review of the principles and concepts of the Design for Manufacturing and Assembly (DFMA) methodology. Next, the study describes the aeronautical industry environment, including the process of product integrated development, the implementation of projects in this sector and the airplane manufacturing phases. Subsequently, it has shown the guideline routine, which was developed in form of check list tables that contain rules and steps to be followed during the design creation and attempts to consolidate manufacturing knowledge and to prevent possible assemblies discrepancies. A case study is also presented to evident and makes the comparison between the results of aeronautical design that had been developed without DFMA concepts and post benefits reached after the project revision using the design for assembly concept and guideline tables. Finally, the results are discussed and the conclusion established.
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Karlsson, Louise, and Alexander Sjöberg. "Framtagning av snabbkoppling i polymera material för vätskekylda datacentraler." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-15320.

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Examensarbetets mål är att ta fram ett konceptförslag på en snabbkoppling på uppdrag av CEJN. Rapporten redovisar de metoder som använts för att nå slutligt resultat. Utvecklad snabbkoppling syftar till en marknad för vätskekylning i datacenter. CEJN önskar ligga i framkant på den expansiva marknaden, vilket kräver att tillverkningskostnaderna för befintlig aluminiumkoppling reduceras, bland annat genom materialbyte till plast. Företaget har idag ingen plasttillverkning i huset. Genereringsarbetet baseras på förstudie i form av litteraturstudier, konkurrensanalyser delvis genom demontering av befintliga produkter på marknaden, samt användartester. Prototyper har använts för test och utvärdering i flera stadier i processen. Snabbkopplingens yttre komponenter, som även visades vara de största kostnadsbärarna, utvecklades som separata delproblem så som låsmekanism, utformning av inre o-ringsspår och sammanfogning för att tillåta montering och säkerställa spillsäkerhet. Beslutsunderlag för slutliga konceptval baserades på kostnader, användande utifrån tillverkade prototyper samt utlåtanden från externa experter inom plasttillverkning, varpå konceptval kunde utföras tillsammans med uppdragsgivande företag. Dellösningarna anpassades i ett slutligt koncept som reducerar kostnader och samtidigt uppfyller krav gällande prestanda, utseende och användbarhet. Projektet med slutligt konceptförslag föreslås ligga till grund för vidareutveckling och tester för att säkerställa den högkvalitativa produkt CEJN eftersträvar.
The objective of the Bachelor thesis is to create a concept proposal in collaboration with CEJN. This report is presenting activities involved in the development process used to obtain the final result. Referring to the expansive market for liquid cooled data centres, CEJN aims to be in the leading edge with a new quick connection coupling. This demands reduction of production costs relative their existing aluminium coupling, partly by change of material to plastics. Outsourcing is relevant as the company does not produce plastic components at set. The idea generation phase has been based on a pre-study consisting of literature studies, analyses of competing products through demolition, and user tests. Prototypes have been used for testing and evaluation throughout the process. The outer components of the quick connection coupling proved to be among the costliest details. Locking mechanism, the formation of an inner slot for seals and the junction between nipple- or coupling body and back part to allow assembly and to ensure a non-drip application, have been developed separately. Decisions for final concept selection were made with the company of commission, with data regarding costs, usage interpreted from prototypes and verdicts from external experts within plastics production. Sub solutions mentioned, were combined into a final concept which reduces costs and fulfils demands regarding performance, appearance and usability. The material from the project is propositioned to form the basis for further development and testing to ensure high product quality representing CEJN.
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Wilde, Larry T. Jr. "Design for Manufacturability and Assembly of an Assistive Technician Creeper, Including Single Drive Control of a Multi-Degree of Freedom Kinematic Mechanism." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/5049.

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In 2011, a team of senior engineering students at Utah State University, in connection with the university’s Center for Persons with Disabilities, designed and prototyped an assistive technician creeper. Building on successful features and resolving issues discovered in design validation testing of the initial prototype, this thesis includes the refined development of a fully assistive technician creeper with emphasis on improvement of kinematic functionality, overall manufacturability, and integration of system safety features. The final design solution is a creeper that transforms a user bi-directionally between the seated position, and a maneuverable supine position, while requiring only simple manual actuation. New design requirements were established including specifications for user height, weight, and body mass distribution, driven by census and medical data suitable for 95% of individuals. Using 3D modeling software, an iterative design approach was used in conjunction with kinematic, and structural analyses, to generate an improved feature set that can be easily manufactured and assembled. Of particular interest is the modification to the kinematic system, which produces multiple single-degree-of-freedom kinematic motions from a single multi-degree-of-freedom kinematic mechanism. This promotes the use of a single motor to produce separate motions for adjusting upper body inclination, and raising the seat surface. The revised design adheres to principles of design for manufacturability and assembly, by using common economical manufacturing processes, minimizing part asymmetry and maximizing part reuse. Employment of engineering analyses, including kinematic, finite element, and failure modes and effects analyses quantified design validation and risk mitigation. Static force analysis and computations of fatigue and life expectancy of critical components supplement the analysis set. Analysis suggests all structural components were designed to meet a safety factor of 3.0 or better. This combined with the addition of safety features and system protection redundancies provide confidence in structural integrity and system reliability. This creeper will contribute to the world of assistive technologies by providing new mobility opportunities, improving the quality of life of individuals with certain physical disabilities. It is also well suited for users of all abilities and has potential to become a premium creeper for professionals.
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Books on the topic "DFMA"

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International Conference "Deformation & Fracture of Materials and Nanomaterials" (2nd 2007 Moscow, Russia). The Second International Conference "Deformation & Fracture of Materials and Nanomaterials", DFMN 2007. Edited by Bannykh Oleg Aleksandrovich. Moscow: Interkontakt Nauka/Interkontakt Nauka (Russia/Moskva), 2007.

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Rolfe, Mel. Gunning for the enemy: Wallace McIntosh, DFC and BAR, DFM. London: Grub Street, 2003.

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Gunning for the enemy: Wallace McIntosh, DFC and BAR, DFM. London: Grub Street, 2008.

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Robinson, Bill. A pathfinder's story: The life and death of Jack Mossop, DFC DFM. Barnsley, South Yorkshire: Pen & Sword Aviation, 2007.

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Smith, John U. M. Engineering product design: Appraisal and optimisation : Lucas Engineering & Systems Ltd DFA application. London: HMSO, 1990.

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Gill, Harry L. Hurricane pilot: The wartime letters of W.O. Harry L. Gill, DFM, 1940-1943. Fredericton, NB: Goose Lane Editions, 2007.

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Franks, Norman L. R. Frank 'Chota' Carey: The story of Group Captain Frank Carey CBE DFC** AFC DFM. London: Grub Street, 2006.

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Franks, Norman L. R. Flying among heroes: The story of squadron leader T.C.S. Cooke, DFC AFC, DFM AE. Stroud, Gloucestershire: The History Press, 2012.

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Institute of Electrical and Electronics. Dfma '05: First International Conference on Distributed Frameworks for Multimedia Applications: 6-9 February, 2005, Besancon, Fr. IEEE Computer Society Press, 2004.

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DFMA '05: First International Conference on Distributed Frameworks for Multimedia Applications : 6-9 February, 2005, Besançon, France. Los Alamitos, Calif: IEEE Computer Society, 2005.

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Book chapters on the topic "DFMA"

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Favi, Claudio, Marco Mandolini, Federico Campi, Paolo Cicconi, Roberto Raffaeli, and Michele Germani. "Design for Manufacturing and Assembly: A Method for Rules Classification." In Lecture Notes in Mechanical Engineering, 354–59. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70566-4_56.

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AbstractThe paper provides a method to acquire, process, and represent DfMA rules to help designers and engineers in the development of mechanical products compliant with manufacturing and assembly technology. This research work wants to define a general method able to link DfMA design guidelines (knowledge engineering) with geometrical product features that are available by the investigation of the 3D model. Numerical parameters of design features are related to design guidelines for the identification of manufacturing and assembly issues within the analysis of the 3D model.
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Read, Avery, James Ritchie, and Theodore Lim. "Haptic Virtual Reality DFMA - A Case Study." In Virtual Reality and Augmented Reality, 24–38. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-72323-5_2.

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Bartonicek, Pavel, and Ivan Mašín. "Design Optimization of the Octavia SK37x Driver’s Seat—DFMA Principle Application." In Current Methods of Construction Design, 3–12. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-33146-7_1.

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Anderson, David M. "Implementing DFM." In Design for Manufacturability, 427–61. Second edition. | Boca Raton : Taylor & Francis, 2020.: Productivity Press, 2020. http://dx.doi.org/10.4324/9780429285981-17.

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Dalpadulo, Enrico, Fabio Pini, and Francesco Leali. "Design for Additive Manufacturing of a Topology Optimized Brake Caliper Through CAD-Platform-Based Systematic Approach." In Lecture Notes in Mechanical Engineering, 92–97. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70566-4_16.

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AbstractTo implement the CAD platform-based approach of Design for Additive Manufacturing (DfAM) and validate it in a real case, an entire design optimization process of a Formula SAE front brake caliper has been performed, to be printed by Powder Bed Fusion (PBF) process. The DfAM consists in the use of a Ti6Al4V titanium alloy to better resist at high temperatures and a topology optimized shape allowed by the technology to save weight despite the density increase. Structural and thermal behavior has been discussed. DfAM process-specific techniques have been implemented for internal geometrical features and optimized shapes. The design for additive workflow is presented and finally the exploited design approach based on a CAD platform is synthesized.
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Diegel, Olaf, Axel Nordin, and Damien Motte. "DfAM Strategic Design Considerations." In Springer Series in Advanced Manufacturing, 41–70. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8281-9_3.

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Almeida, Marco, Nelma Moreira, and Rogério Reis. "Incremental DFA Minimisation." In Implementation and Application of Automata, 39–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-18098-9_5.

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Giraud, Christophe. "DFA on AES." In Advanced Encryption Standard – AES, 27–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11506447_4.

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Shina, Sammy G. "Introduction: DFM Concepts." In Concurrent Engineering and Design for Manufacture of Electronics Products, 1–23. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6518-1_1.

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Shina, Sammy G. "Tools for DFM." In Concurrent Engineering and Design for Manufacture of Electronics Products, 276–314. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-6518-1_12.

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Conference papers on the topic "DFMA"

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Salimi, Hadi, Mohsen Sharifi, and Seyed Alimohammad Sayyah. "Analysis of a Replication-Aware Transaction model by means of Stochastic Reward Networks." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784407.

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Khaneghah, Ehsan Mousavi, Seyedeh Leili Mirtaheri, Mohsen Sharifi, and Zarrintaj Bornaee. "Formulating the influence of peer-to-peer systems scale up on access transparency." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784408.

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Halboob, Waleed, Ali Mamat, and Ramlan Mahmud. "A distributed push-based XML access control model for better scalability." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784409.

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Nicod, Jean-Marc, Laurent Philippe, and Hala Sabbah. "Optimizing the cost of an heterogeneous distributed platform." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784410.

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Sallim, Jamaludin, Rosni Abdullah, and Ahamad Tajudin Khader. "Ant Colony Optimization for optimal path finding in protein interaction network." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784412.

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Fernandez, Rafael, Javier Soriano, Xabier Larrucea, Andres Leonardo Martinez, and Jesus M. Gonzalez-Barahona. "Towards the improvement of the software quality: An Enterprise 2.0 architecture for distributed software developments." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784413.

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Diakite, Sekou, Jean-Marc Nicod, and Laurent Philippe. "Processing identical workflows on SOA grids: Comparison of three approaches." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784414.

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Manasrah, Ahmed, Norayu Abdul Talib, Muhammad Fermi Pasha, Mustofa Abdat, Ashraf Aljammal, Sureswaran Ramadass, and Omer Amer Abouabdalla. "iNet-Grid: A real-time Grid monitoring and troubleshooting system." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784415.

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Younis, Mohammed I., Kamal Z. Zamli, and Nor Ashidi Mat Isa. "A strategy for Grid based t-way test data generation." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784416.

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Indrayanto, Aloysius, and Huah Yong Chan. "Application of game theory and fictitious play in data placement." In Applications (DFmA 2008). IEEE, 2008. http://dx.doi.org/10.1109/icdfma.2008.4784417.

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Reports on the topic "DFMA"

1

Kessler, S. F. ,. Fluor Daniel Hanford. Decay heat fractions for DFA 8213 and 4192. Office of Scientific and Technical Information (OSTI), February 1997. http://dx.doi.org/10.2172/327320.

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Galeano-Ramírez, Franky Juliano, Nicolás Martínez-Cortés, Carlos D. Rojas-Martínez, and Margaret Guerrero. Nowcasting Colombian Economic Activity: DFM and Factor-MIDAS approaches. Banco de la República, August 2021. http://dx.doi.org/10.32468/be.1168.

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Economic policy decision-making requires constantly assessing the state of economic activity. However, this is not an easy task: official figures have significant lags, and the timely information is usually partial and has different frequencies. This paper applies two types of short-term forecasting methodologies (Factor-MIDAS and DFM) for Colombian economic activity involving information with mixed frequencies. We present a heuristic process to select relevant variables, and we evaluate the proposed models' fits by comparing them with traditional forecasting methodologies. Overall, DFM and Factor-MIDAS forecasts are better than those generated by conventional methodologies, especially as the flow of information increases. In times of COVID-19, the model with the best relative fit was the DFM.
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Bergeron, Aurelien, Alberto Talamo, Prasad Vegendla, and Florent Heidet. Transformational Challenge Reactor – On the Application of Design for Additive Manufacturing (DfAM) Techniques to the Conception of Nuclear Core. Office of Scientific and Technical Information (OSTI), April 2022. http://dx.doi.org/10.2172/1861083.

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Flow and transport model of the Savannah River Site Old Burial Grounds using Data Fusion modeling (DFM). Office of Scientific and Technical Information (OSTI), November 1995. http://dx.doi.org/10.2172/329514.

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