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Dissertations / Theses on the topic 'Life time of cutting tool'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

Vagnorius, Žydrunas. "Reliability of metal cutting tools: : Stochastic tool life modelling and optimization of tool replacement time." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for produksjons- og kvalitetsteknikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-11293.

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This PhD thesis is based on six articles and proposes new approaches for modelling of the life of cutting tools and for determining the optimal tool replacement time. These issues are very closely related and play a critical role in machining economics. Replacing a tool too early means wasting of its potential and leads to high costs and reduced productivity. Late replacement poses a risk of wear-out and other types of tool failures, which can damage the component being produced and can cause expensive equipment downtimes. Therefore a lot of work has been done to develop models for predicting

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Kalnaši, Radoslav. "Ekonomická analýza obráběcího procesu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230219.

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This master’s thesis focuses on analysis of time consumption of machining process, the basic units of operating costs of production,optimization and subsequen tapplication to specific part. It is a turning shaft in two operations, named roughing and finishing turning. The aim is to find the optimum combination of life time of cutting tool and cutting speed, which is the main criterion for optimization in terms of minimum production cost or a maximum of productivity.

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3

Dostálová, Markéta. "Optimalizace operačních nákladů obráběcího procesu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230505.

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This work deals with operating production costs in machining process and further optimalization. In the first chapter, individual costs items which are related to machining process are specified. These cost items are quantified and total production costs are acquired. Optimalization of operation production costs are described for criterion of minimal production costs and criterion of maximal productivity are described in next chapter. Practical part of this work is focused to apply each individual criterion in practical example. There is CD with programs attached to this work. The goal is to f

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Šikula, Josef. "Analýza operačních nákladů obráběcího procesu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318157.

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This master’s thesis deals with the operating production cost in machining process and further optimalization. Individual costs items which are related to machining process are specified. Attention is paid to the time consumption of individual machining methods. The aim of the thesis is to find an optimal combination of cutting speed and durability in order to meet the minimum cost criteria and maximum productivity. The calculations are used for turning the outer cylindrical surface and the face surfaces at a constant cutting speed. The work is accompanied by tables and calculations in Microso

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Jaberansari, Mohsen. "The effect of cutting tool micro-geometry on tool life." Thesis, University of Salford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303041.

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Heidari, Majid. "Improvement of cutting tool life for the primary transformation of wood." Doctoral thesis, Université Laval, 2019. http://hdl.handle.net/20.500.11794/35717.

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Le contrôle de l’usure des couteaux de découpe est un grand défi dans l’industrie de la première transformation du bois. En contrôlant le niveau d’usure, les coûts de maintenance sont diminués et une meilleure qualité des produits est obtenue. Les mécanismes d’usure des outils de coupe dans un environnement industriel de transformation du bois sont particulièrement complexes. Dans le présent projet, une caractérisation des principaux mécanismes d’usure a été faite afin de comprendre les conditions de travail en première transformation du bois. Fort de ces résultats, une analyse du choix des ma

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7

Vom, Braucke Troy S., and tvombraucke@swin edu au. "Establishment of a database for tool life performance." Swinburne University of Technology, 2004. http://adt.lib.swin.edu.au./public/adt-VSWT20050914.085324.

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The cutting tool industry has evolved over the last half century to the point where an increasing range and complexity of cutting tools are available for metal machining. This highlighted a need to provide an intelligent, user-friendly system of tool selection and recommendation that can also provide predictive economic performance data for engineers and end-users alike. Such an 'expert system' was developed for a local manufacturer of cutting tools in the form of a relational database to be accessed over the Internet. A number of performance predictive models were reviewed for various mach

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8

Bonilla, Hernández Ana Esther. "Analysis and direct optimization of cutting tool utilization in CAM." Licentiate thesis, Högskolan Väst, Forskningsmiljön produktionsteknik(PTW), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-8672.

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The search for increased productivity and cost reduction in machining can be interpreted as the desire to increase the material removal rate, MRR, and maximize the cutting tool utilization. The CNC process is complex and involves numerous limitations and parameters, ranging from tolerances to machinability. A well-managed preparation process creates the foundations for achieving a reduction in manufacturing errors and machining time. Along the preparation process of the NC-program, two different studies have been conducted and are presented in this thesis. One study examined the CAM programmin

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Zdebski, Daniel. "The impact of tool performance on micromachining capability." Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/7789.

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Micro-milling represents a versatile and fast manufacturing process suitable for production of fully 3D micro-components. Such components are demanded for a vast number of industrial applications including safety systems, environmental sensors, personalized medical devices or micro-lenses and mirrors. The ability of micro-milling to process a wide range of materials makes it one of the best candidates to take a leading position in micromanufacturing. However, so far it does not seem to happen. By discussion with various industrialists, low predictability of micro-milling process was identified

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10

Gram, Michael D. "Fineblanking of High Strength Steels: Control of Materials Properties for Tool Life." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1280869210.

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Valavan, Uvanandan Sheikh-Ahmad Jamal. "Tool life prediction based on cutting forces and surface temperature in edge trimming of multidirectional CFRP composites." Diss., A link to full text of this thesis in SOAR, 2007. http://soar.wichita.edu/dspace/handle/10057/1182.

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Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Industrial and Manufacturing Engineering..<br>"May 2007." Title from PDF title page (viewed on Dec. 29, 2007). Thesis adviser: Jamal Sheikh-Ahmad. Includes bibliographic references (leaves 86-89).

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Berhane, Mulugeta. "Optimization of cutting parameters in machining of Compacted Graphite Iron (CGI)." Thesis, KTH, Industriell produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-41280.

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Compacted Graphite Iron offers mechanical properties in between of gray cast iron and ductile iron. Thus,the material is seen as a hopeful alternative for engine cylinder blocks and heads satisfying environmentaland performance objectives. Nevertheless, CGI is more difficult to machine than conventional gray castiron due to the presence of MnS and thin wall section of probing high strength. This problem of CGI thenled to the initiation of large Optima Sweden project to study machinability and optimization of related toCGI.The thesis is centered on a study of tool life, cutting force and MRR wi

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Joshi, Kunal J. "OPTIMIZATION OF CUTTING CONDITIONS FOR SUSTAINABLE MACHINING OF SINTERED POWDER METAL STEELS USING PCBN AND CARBIDE TOOLS." UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_theses/379.

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Powder metals are becoming a popular choice in the automotive and other manufacturing industries because of their ability to meet wide ranging product functional requirements without compromising the performance of the product. They offer various advantages, including weight reduction, near net-shape processing capability, and their ability to be sintered to achieve desired properties in the end-product. However, in order to satisfy the product design requirements during manufacturing, they need to be machined to the required tolerances. Machining of powder metals is quite different to machini

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Liu, Yang, and Rui Wang. "Finite element analysis of the effects of theCu:CNx nano-composite multilayer coating onto the improvement of cutting tool life." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300140.

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To verify the effects of applying the shim with nanostructured composite damping coating onto the improvement of cutting tool life, the thesis studies two related aspects, the experiment and finite element software simulation. The experiment part mainly discusses the methods of designing the experiment process and verifying the damping vibration effectiveness of the coated shim. It gives a brief introduction to the experiment, including the procedures and the results. During the experiment, the traditional shim and the shim with nanostructured composite damping coating-CuCNx were turned respec

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Drda, David. "Technologické a ekonomické parametry řezného nástroje." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228639.

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Aim master´s thesis is analyzed technological and economical parameters of cutting tool. Firstly there are the parameters cutting tool, cutting wear, economical parameters and costs on running tools specified. In the conclusion there are reach technological and economical parameters of cutting tools analyzed and tested on practical sample. The sample is part of attachments in form programme on calculation in Excel, together with evaluation by means of graphs.

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Nyström, Linus, and Elias Hallberg. "Reducering av verktygskostnade." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-86338.

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Bucher Emhart Glass i Örebro arbetar med bearbetning och tillverkning av maskindelar, reservdelar, fixturer och prototyper för formning av glasbehållare. Nyligen har företaget installerat nya maskingrupper där varje maskin har ett verktygsförråd på några hundra verktyg. Det förekommer likadana verktyg i flera olika maskiner och de mest använda verktygen har slitagedelar som byts ut i högt tempo. Företaget har en bristande översyn på nya inköp samt en stor verktygskatalog som lett till onödigt höga verktygskostnader. I och med detta vill Emhart Glass ha förbättringsförslag över vilka åtgärder s

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17

Flodr, Vojtěch. "Testování řezných nástrojů povlakovaných nanokrystalickými kompozity." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228891.

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The thesis is focused on the characteristic of coating methods and their division, on the morphology of defects and cause of wear in coated cutting tools of sintered carbides. The experimental part is focused on a comparing cutting performance testing of indexable cutting inserts coated with nanocrystaline composite TiAlSiN at the longitudinal turning.

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Brown, Lucas A. "Matrices as a tool for space and time integration : a methodology for reducing human impact and increasing quality of life." Virtual Press, 2002. http://liblink.bsu.edu/uhtbin/catkey/1231343.

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This study provides a framework using matrices that address three main issues. First of all, the matrices are used to integrated physical needs that compose human systems in an attempt to reduce the human impact. Secondly, the matrices are used to develop a higher integration of time allowing the user to apply time to a wide variety of needs that contribute to a high quality of life. Lastly the matrices are used to integrate the aspects of space with the aspects of time. This shows that the whole, time and space, is greater than the sum of the parts. I pursued this study in an attempt to furth

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19

Prno, Peter. "Obrábění kobaltové slitiny UmCo50." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444280.

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The diploma thesis deals with the topic of machinability of materials. The theoretical part describes the aspects according to which machinability can be evaluated. The material side of the thesis is focused on various types of difficult-to-machine materials. The cobalt alloy UmCo50 belongs to the group of difficult-to-machine materials and it is the subject of the experimental part. UmCo50 is an alloy for high temperature use. The primary aim of the thesis was to monitor the wear of the selected cutting tool when turning this alloy. Other aspects of the selected machining process were also mo

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20

Chakraborty, Pinaki. "Tool Life and Flank Wear Modeling of Physical Vapour Deposited TiAlN/TiN Multilayer Coated Carbide End Mill Inserts when Machining 4340 Steel Under Dry and Semi-Dry Cutting Conditions." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_dissertations/22.

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This study investigates the tool wear of advanced PVD TiALN/TiN multilayer coated end mill inserts when dry and semi-dry machining 4340 low alloy medium carbon steel. A factorial design of experiment setup consisting of two levels of speed, three levels of feed, two levels of depth of cut, and two levels of cutting conditions (semi-dry and dry) was used for the study. The combination of cutting conditions that gave the best response for different components of cutting force, cutting power, surface roughness and tool life were determined using MANOVA & ANOVA analysis and Tukey comparison of mea

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Fortunet, Charles. "Zavedení systému kontroly opotřebení při vrtání a řezání závitů do strojních dílů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231706.

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The topic of this thesis is divided in two main parts. The first is about the “tool/workpiece pair” method and the second is related to wear monitoring. The entire project will be about drilling and tapping operations done in SNECMA Vernon. In fact, the part is very expensive so they have to be closely controlled to avoid a maximum scrap pieces. Two software will be used to control it. Firstly, the “tool/workpiece pair” will be done through AMC3 (software developed at the ENSAM). And secondly the wear monitoring will be ensured by the software CTM Visu (developed by ARTIS). My task will be to

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22

Benda, Martin. "Optimalizace obráběcího procesu zvolené rotační součásti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402518.

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This thesis deals with analysing component manufacture of valve lines. Firstly evaluating current condition of production including determinated manufacture times and costs. Secondly carrying out inmprovement proposals for manufacture and optimalisation of cutting conditions while considering the minimal costs given for operation sections. The final provision summarizes results which were achieved and overall benefits of the thesis.

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Essmann, Erich C. "A cost model for the manufacture of bipolar plates using micro milling." Thesis, Stellenbosch : Stellenbosch University, 2012. http://hdl.handle.net/10019.1/20319.

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Thesis (MScEng)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: In a move towards cleaner and more sustainable energy systems, hydrogen as an energy carrier and hydrogen fuel cells as energy converters are receiving increasing global attention. Considering the vital role that platinum plays in the operation of hydrogen fuels cells, South Africa stands to gain enormously as the world’s leading platinum group metals supplier. Therefore, in order to benefit across the whole value chain, it is imperative to develop the capability to manufacture hydrogen fuel cell stacks locally. This pr

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Tkáčová, Alena. "Sestavení technologie součásti "cage" ve firmě CCI Brno." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229897.

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This thesis is focused on techology of manufacturing a "cage" component at CCI Brno company. It solves drilling holes to the outside diameter of it. In the first part the company CCI is introduced, and in the second part is focused on component and material analysis. Next step is analyzing present manufacturing procedures and proposing its change. At the end of this thesis is techno-economic comparison of the present and proposed technological change.

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Ondrášek, Dušan. "Studie ekonomiky technologie obrábění." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228041.

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The aim of this diploma thesis addresses issues related to obtaining methodology for the production manager´s decision-making process in the field of technology selection, suitable tooling and cutting tools selection for a specific order or particular production plan. Evaluation of the manufacturing process while taking into consideration complexion of process controlling and contexture to the economy of this process. Analysis and evaluation of technological and economical aspects of a manufacturing process of the CNC chip machining in a real environment is targeted on the field of tooling, it

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Irshad, Muhammad Aatif. "The effect of prior austenite grain size on the machinability of a pre-hardened mold steel. : Measurement of average grain size using experimental methods and empirical models." Thesis, Karlstads universitet, Avdelningen för maskin- och materialteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-8777.

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The use of pre-hardened mold steels has increased appreciably over the years; more than 80% of the plastic mold steels are used in pre-hardened condition. These steels are delivered to the customer in finished state i.e. there is no need of any post treatment. With hardness around ~40HRC, they have properties such as good polishability, good weldability, corrosion resistance and thermal conductivity. Machinability is a very important parameter in pre-hardened mold steels as it has a direct impact on the cost of the mold. In normal machining operations involving intricate or near net shapes, ma

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Němeček, Lukáš. "Analýza řezivosti fréz pro zvolenou aplikaci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229415.

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The presented diploma thesis is devided into two parts. The theoretical part deals with types of milling, the choice of the cutters, choice of material of exchangeable cutting plates and also with types of wear and their classification. The second part of the thesis deals with experiments where the power load of the tool was measured. The observed data were processed and graphs of power load were created by software. Conclusions are based on these graphs.

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Findeisen, Sebastian. "Zykluszeitreduzierung beim Druckgießen durch mehrteiligen Werkzeugaufbau." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2015. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-161111.

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In der Dissertation wurde der Stand der Technik zum Fertigungsverfahren Druckgießen mit dem Fokus auf die Druckgießwerkzeuge recherchiert und strukturiert aufbereitet. Der Stand der Technik mündet in der Systematik zur Optimierung des Druckgießens. Darin wurde die Problematik ganzheitlich aufgearbeitet, konkretisiert und wesentliche Handlungsfelder, wie das Temperierkonzept, der Werkstoff sowie die Auslegung, herausgearbeitet. Das Handlungsfeld Temperierkonzept wurde fokussiert und daraus das Konzept des mehrteiligenWerkzeuges erarbeitet. DiesesWerkzeugkonzept ermöglicht durch seinen Aufbau ei

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Grub, André Mangetti. "Avaliação do Desempenho de Fluidos de Corte Contaminados no Processo de Torneamento do Aço Inoxidável Austenítico V304UF." Universidade Federal de Uberlândia, 2013. https://repositorio.ufu.br/handle/123456789/14943.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In machining processes the main functions of cutting fluids (FC) are cooling and lubrication of the tribological system comprised of the workpiece, the chip and the cutting tool. When adequately chosen and correctly applyed they may raise tool lives, reduce machining forces and improve the surface finishing of the workpiece. However, during their use, research has demonstrated that water based cutting fluids (emulsions and solutions) become suceptible to microbiological contamination (by bacterias) that uses nutrients encountered i

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Ceyte, Benoit. "Obrobitelnost litiny s lupínkovým grafitem pro brzdové díly firmy RENAULT." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229844.

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This document is final report of an expertise project lead for ALPHA Company. The project focuses on the machinability characterization and comparison of various lamellar cast irons metallurgies. The comparison is performed in order to improve the casting process and the cast irons composition of brake and hub disk, to increase their machinability. The characterization of the metallurgies was made by tool life test with measurements of the cutting forces. Hardness and surface roughness measurements were performed too. Several Silicon nitride tools were tested. First an adjustment test has been

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Yen, Han Chiang, and 江衍涵. "Technique Developments of Estimations of Cutting Forces and Tool Remaining Useful Life." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8syafw.

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碩士<br>國立中正大學<br>機械工程系研究所<br>106<br>Two techniques regarding of machining based on the vibration signal are proposed. The first one is an indirect cutting force estimation and the second is an estimation of cutting tool remaining life . For cutting force estimation, a frequency transfer function between the force acting on the cutting tool tip and the acceleration on the spindle is determined firstly using experimental modal analysis (EMA). With this transfer function, the cutting force is then obtained during the machining by measuring the spindle acceleration. Experimental results show that t

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SU, SHAO-RONG, and 蘇紹榕. "The developing of technique to predict remaining useful life of cutting tool." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/4pa3wr.

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碩士<br>國立中正大學<br>機械工程系研究所<br>107<br>This research focuses on developing an online technique to predict the remaining useful life (RUL) of cutting tool during the machining process. The vibration, cutting force and cutting moment signals are acquired by two three-axis accelerometers and a dynamometer mounted respectively on the spindle and feed drive system during the machining process. The tool wear is measured using photo image taken from a CCD camera. The tool wear model used for later RUL prediction is built using machine learning algorithm Isolation Forest. Results show that the tool RUL pr

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Peng, Yonghong. "Empirical Model Decomposition based Time-Frequency Analysis for Tool Breakage Detection." 2006. http://hdl.handle.net/10454/3178.

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No<br>Extensive research has been performed to investigate effective techniques, including advanced sensors and new monitoring methods, to develop reliable condition monitoring systems for industrial applications. One promising approach to develop effective monitoring methods is the application of time-frequency analysis techniques to extract the crucial characteristics of the sensor signals. This paper investigates the effectiveness of a new time-frequency analysis method based on Empirical Model Decomposition and Hilbert transform for analyzing the nonstationary cutting force signal of the m

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Vom, Braucke Troy S. "Establishment of a database for tool life performance /." 2004. http://adt.lib.swin.edu.au/public/adt-VSWT20050914.085324.

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Thesis (MEng) - School of Engineering and Science, Swinburne University of Technology, 2004.<br>Thesis submitted for the degree of Master of Engineering by Research, School of Engineering and Science, Swinburne University of Technology, 2004. Typescript. Includes bibliographical references: p. 116-122.

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Lin, Chi-Der, and 林其德. "The Study of Cutting Temperature and Tool Life with Milling Nickel Base Alloy." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/42710409617059974552.

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博士<br>國立中正大學<br>機械工程學系暨研究所<br>100<br>Due to the engineering advancement in modern industries, the competition in manufacturing technologies has been increasingly intense as can be seen in automobile and aerospace industries. Nickel-base super-alloys are widely in the manufacture of components for aircraft turbine engines for cryogenic tankage、 liquid rockets、reciprocating engines、 space vehicles、 heat-treating equipment、 chemical and petro chemical industries because of their ability to retain high strength at elevated temperatures. But, because of its high strength、 poor thermal diffusion and

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Ong, Soon-Tat, and 王順達. "Scheduling and Cutting Parameters Optimization for Parallel Turning Machines with Energy Consumption and Tool Life Considerations." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nzf45s.

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碩士<br>國立臺灣大學<br>工業工程學研究所<br>107<br>This paper studies the scheduling problem of turning process in identical parallel machine environment. Scheduling of turning machine is a case of controllable processing time scheduling since the processing time of turning operation can be adjusted by alter the cutting speed, feed rate and depth of cut. The determination of subdivision of depth of cut is another decision problem to be solve in turning operation. Since the determination of subdivision of depth of cut is a MINLP problem itself, the combination of the two problem make the scheduling problem of

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Valavan, Uvanandan. "Tool life prediction based on cutting forces and surface temperature in edge trimming of multidirectional CFRP composites." Thesis, 2007. http://hdl.handle.net/10057/1182.

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Fiber reinforced polymers (FRPs) exhibit superior characteristics such as high specific strength, high specific modulus, fatigue strength and endurance. With an increase in the use of composite FRP materials in industries, secondary machining operations of these materials play an important role in final assemblage. This requires adherence of the machined components to the established geometric tolerance, dimensional accuracy, and surface quality. In a previous study, a tool life prediction equation was established based on the process parameters (speed and feed). Since this equation is not sat

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LIN, JIUN-JI, and 林俊吉. "The Effect of Gear Hob Setting and Processing Parameters on The Gear Dry Cutting Accuracy and Tool Life." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/pb7p79.

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碩士<br>國立虎尾科技大學<br>動力機械工程系機械與機電工程碩士班<br>106<br>The dry hobbing process is the most representative method in gear manufacture, which has grown rapidly recently. However, the studies on the reduced diameter of the tool after re-sharpening, with a changed meshing lead angle, and the accuracy of the generated gear were not found in the research of dry hobbing. Therefore, experiments and analysis will be performed on the input lead angle of the hob cutter in the machine setting, due to the reduced diameter after re-sharpening in this study. The experimental study can improve the precision of hobbing

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Jhou, Cheng-En, and 周承恩. "Study on the Cutting Efficiency of High-Speed Band Saw Blade by Taylor Tool Life and Fractal Equations." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/29325269668578755049.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程研究所<br>105<br>The factors that influence the tool wear and the surface roughness include the cutting force, the chip shape, the cutting heat, local stress concentration and so on. If these factors can be controlled, then great contributions will be made to improving processing quality, raising cutting efficiency and reducing the cost. This research puts forward the cutting factors of the geometric structure of the band saw cutter, simulates and improves the processing characteristics during the cutting process, discusses the impact of different cutting types on sawi

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Hung, Sheng-Kai, and 洪聖凱. "Research into Established the Life time of a Tool Online with Plasma Assisted Machining." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/57255325018751938197.

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碩士<br>國立勤益科技大學<br>機械工程系<br>102<br>Nickel-base superalloys are mainly used in the field of aerospace engine components.Taking a Boeing 787 as an example, this plane has about 2.4 million aircraft components of about which 40% are nickel-based alloys. There has been a move in recent years to improve the fuel efficiency of engine due to high oil prices, which are being developed with high-pressure and high-temperature engine designs where the amount of nickel-base superalloys, which are more heat-resistant, have gradually increased to more than 50%. At room temperatu

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Chen, Chun-Yu, and 陳峻宇. "Development of a Real-time Micro Drilling Diameters and Tool Life Forecasting System Based on Grey Theory and Acoustic Signal." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/89292441601315047016.

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碩士<br>中原大學<br>工業與系統工程研究所<br>104<br>As the consumer trends and the change of processing in recent years, production orientation of machining process has evolved from mass production to high quality, small-scale production; therefore, quality control and predict is becoming increasingly important. Various prediction methods such as tradition statistical forecasting, simulation modeling, regression analysis and soft computing, have been proposed to construct prediction systems in these years, and some studies even added contact force sensor, acoustic emission sensor and accelerometers to assist d

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Findeisen, Sebastian. "Zykluszeitreduzierung beim Druckgießen durch mehrteiligen Werkzeugaufbau." Doctoral thesis, 2014. https://tubaf.qucosa.de/id/qucosa%3A22968.

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In der Dissertation wurde der Stand der Technik zum Fertigungsverfahren Druckgießen mit dem Fokus auf die Druckgießwerkzeuge recherchiert und strukturiert aufbereitet. Der Stand der Technik mündet in der Systematik zur Optimierung des Druckgießens. Darin wurde die Problematik ganzheitlich aufgearbeitet, konkretisiert und wesentliche Handlungsfelder, wie das Temperierkonzept, der Werkstoff sowie die Auslegung, herausgearbeitet. Das Handlungsfeld Temperierkonzept wurde fokussiert und daraus das Konzept des mehrteiligenWerkzeuges erarbeitet. DiesesWerkzeugkonzept ermöglicht durch seinen Aufbau ei

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