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Dissertations / Theses on the topic 'Steel 22mnB5'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 February 2022

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1

Matayoshi, Tamy Oshiro. "Estampagem a quente do aço ao boro 22MnB5." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-27042018-095456/.

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O processo de estampagem à quente é um dos métodos possíveis para a conformação de aços de alta resistência. Para isso é necessário o estudo das propriedades termomecânicas para obtenção de parâmetros ótimos para a construção de uma linha de estampagem eficiente. Neste trabalho, foram realizados ensaios para determinar os parâmetros para a estampagem a quente do aço 22MnB5, e posteriormente a construção de uma linha de estampagem a quente completa. Obteve-se ao fim do processo, uma microestrutura martensitica com dureza de 430 HV com resistência à tração de aproximadamente 1365 MPa.<br>The hot

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2

Häggqvist, Adam. "Furnace Brazing of AlSi-coated and Uncoated 22MnB5 Steel at Austenite Temperatures." Thesis, KTH, Lättkonstruktioner, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-185270.

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By continued advances in mechanical strength of press hardened boron alloyed steel (22MnB5) weight savings can be achieved by the use of less material. However, with reduced material thickness stiffness problems such as buckling arises and the high strength of the material can’t fully be taken advantage of. A solution to the stiffness problem could be to create a sandwich structure using 22MnB5 steel. To create a sandwich structure the faces have to be joined to the core. Work has been done concerning various methods of joining both coated and uncoated 22Mnb5 after being press hardened. A more

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3

Naganathan, A. "Hot Stamping of Manganese Boron Steel(Technology Review and Preliminary Finite Element Simulations)." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1291069172.

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4

Krejčí, Adam. "Svařování oceli 22MnB5 pomocí hybridní technologie Laser-TIG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417452.

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This thesis deals with usage of hybrid technology Laser-TIG for welding of boron enhanced steel 22MnB5. This thesis evaluates the influence of preheating using technology of TIG arc welding to a weld quality in comparison with laser welds. In practical part of thesis there were 1,8 mm metal sheets of 22MnB5 welded. This metal sheet specimens were welded by using constant parameters of laser with varying parameters of TIG technology. There were 12 specimens of sheet metal created including 3 specimens using only laser and 9 specimens using Laser-TIG hybrid technology while varying magnitude of

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5

Straka, Jan. "Návrh nástroje pro vystřižení tvarového přístřihu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399397.

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The thesis presents a design of a progressive cutting tool for the production of shaped blanks from sheet metal Usibor 1500 (22MnB5) with a thickness of 1.5 mm. The tool is designed by using CATIA V5 software in cooperation with Žďas, a.s. company. Based on the literature review of the cutting process, cutters were designed, shear clearance and order of operations in the tool were determined. The proposed cutting tool consists of both manufactured and standardized parts. Tool parts fall out of the chute onto the conveyor belt. The tool is designed to operate on an AIDA 1000 excentric press wit

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6

Kachlíř, Jaromír. "Využití hybridní technologie Laser-TIG pro svařování bórem dopovaných vysokopevnostních ocelí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402499.

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This thesis deals with the usage of arc preheating for welding high strength boron enhanced steel 22MnB5 using hybrid technology known as laserTIG and also its impact on the final weld compared to welds welded by only the laser or the arc method. During the experiment I welded five sheets of the above mentioned steel 1,3 or 1,9 milimeters wide. Except for the welds fabricated by the laser and the TIG method was the only variable the electric current of the arc (I = 20, 40, or 60 A). Welds welded this way were compared based on strength limits measured by the tensile tests. Additionally were th

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7

Birnbaum, Peter, Verena Kräusel, and Dirk Landgrebe. "Forming Behavior of Manganese-Boron Steel 22MnB5 while Cooling according to its Microstructural Development." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-170323.

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The press hardening belongs to state-of-the-art technology at sheet metal forming to gain high strength and crash resistant parts in automotive industry. This process could establish due to its cost- and esourceefficiency. According to ongoing developments on direct press hardening processes it is necessary to describe and understand the thermo-mechanical treatment of 22MnB5. Therefore the flow behavior and phase transformation during cooling with simultaneous forming is investigated. The experimental process considers industrial parameters in order to get industry-oriented results. In deep d

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8

Ebbinghaus, Michael. "Untersuchung der Verarbeitungseigenschaften von Kupferbasiszusatzwerkstoffen im MIG- und Laserlötprozess an Stahlblechen mit unterschiedlichem Festigkeitsverhalten." Doctoral thesis, Universitätsbibliothek Chemnitz, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-152166.

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In der Arbeit werden spezielle Kupferlote im MIG- und Laserlötverfahren an Stählen mit unterschiedlichem Festigkeitsverhalten untersucht. Die Ergebnisse sollen dazu beitragen, den Lötprozess durch den Einsatz spezieller Kupferbasislote zu optimieren und durch reduzierten Energieeintrag ein homogeneres Eigenschaftsfeld im Bereich der Fügestelle zu erzeugen. Den Verarbeitern dieser Werkstoffe soll die Möglichkeit gegeben werden, diese Werkstoffe rationeller und mit höherer Effektivität zu verarbeiten. Im Ergebnis der Arbeit sollen Verbesserungen der Eigenschaften der Lötnähte erzielt werden, die

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9

Kaars, Jonny, Peter Mayr, and Kurt Koppe. "Determining Material Data for Welding Simulation of Presshardened Steel." MDPI AG, 2018. https://monarch.qucosa.de/id/qucosa%3A31829.

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In automotive body-in-white production, presshardened 22MnB5 steel is the most widely used ultra-high-strength steel grade. Welding is the most important faying technique for this steel type, as other faying technologies often cannot deliver the same strength-to-cost ratio. In order to conduct precise numerical simulations of the welding process, flow stress curves and thermophysical properties from room temperature up to the melting point are required. Sheet metal parts made out of 22MnB5 are welded in a presshardened, that is, martensitic state. On the contrary, only flow stress curves for s

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10

Chokshi, Prasun. "Development of an artificial neural network (ANN) based phase distribution prediction model for 22MnB5 boron steel during tailored hot stamping." Thesis, University of Warwick, 2017. http://wrap.warwick.ac.uk/90156/.

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Due to demand for lower emissions and better crashworthiness, the use of boron ultra high strength steel (UHSS) has greatly increased in manufacturing of automotive components. However in many cases an idealized component has got different mechanical properties in different regions. For example in an automotive structural component such as B-pillar, which may undergo impact loading, it is desirable that there are certain regions in it which are softer and more ductile so that component's overall energy absorption is improved. The innovative process of tailored hot stamping allows for this by c

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11

Olah, Neto André. "Estudo do efeito da deformação plástica sobre a cinética de transformação de fase de um aço 22MnB5 estampado a quente." Universidade do Estado de Santa Catarina, 2015. http://tede.udesc.br/handle/handle/618.

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Made available in DSpace on 2016-12-08T15:56:17Z (GMT). No. of bitstreams: 1 Andre Olah Neto.pdf: 11111826 bytes, checksum: 36a7c3a3c11e61f18d8a74f06d619cc0 (MD5) Previous issue date: 2015-04-10<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In recent decades the automobile industry has made a great effort to deal with ecological and security challenges. To do so, it was necessary to develop vehicles which are lighter, more economical and have a greater intrusion resistance when subjected to a crash. This was made possible, among other actions, by the development of advanc

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12

Al-Obaidi, Amar Baker Salim. "Induction Assisted Single Point Incremental Forming of Advanced High Strength Steels." Universitätsverlag der Technischen Universität Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A31527.

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Induction Assisted Single Point Incremental Forming (IASPIF) is a die-less hot sheet metal forming. The IASPIF does not apply characteristic complex tooling like those applied in deep drawing and bending. In this thesis, induction heating was used to heat up the sheet while simultaneously forming with a tool. The research goal is to improve the formability of high strength steels by heating. The IASPIF consists of non-complicated set up that allows induction heating to be utilized through the coil inductor moved under the sheet and synchronized with the forming tool that moves on the upper sid

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13

Demazel, Nathan. "Développement de solutions de chauffage par conduction électrique pour l’emboutissage des aciers trempants : approche numérique et expérimentale." Thesis, Lorient, 2018. http://www.theses.fr/2018LORIS511.

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Pour réduire les émissions de gaz à effet de serre, les constructeurs automobiles cherchent à alléger lesvéhicules. L’Usibor®1500 permet de réduire les épaisseurs des pièces de structure grâce à ses propriétés mécaniques élevées obtenues suite au procédé d’emboutissage à chaud. Ce procédé comporte une chauffe où le flan (la tôle) est austénisé, puis mis en forme et trempé simultanément pour obtenir une structure entièrement martensitique qui confère des propriétés mécaniques élevées. Le projet ANR PRICECAT consiste à développer un procédé dans lequel la mise en forme se fait par multi- passes

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14

Ta-WeiChien and 簡大偉. "Investigation on Formability of 22MnB5 Steel at Elevated Temperatures using a Physical Simulator." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/74972145708751120749.

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碩士<br>國立成功大學<br>機械工程學系<br>102<br>B-Mn steel 22MnB5 is known to have excellent mechanical properties after experiencing a proper hot stamping process. Not surprisingly, 22MnB5 has become an increasingly popular material in industry recently. The need for formability information on 22MnB5 metal sheet is also increasing. A forming limit diagram is one of most important types of formability information. The 22MnB5 forming limit diagram should be made at elevated temperatures. The limiting dome height test is currently the most common experiment used to establish a forming limit diagram, but the sp

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15

Ebbinghaus, Michael. "Untersuchung der Verarbeitungseigenschaften von Kupferbasiszusatzwerkstoffen im MIG- und Laserlötprozess an Stahlblechen mit unterschiedlichem Festigkeitsverhalten." Doctoral thesis, 2013. https://monarch.qucosa.de/id/qucosa%3A20115.

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In der Arbeit werden spezielle Kupferlote im MIG- und Laserlötverfahren an Stählen mit unterschiedlichem Festigkeitsverhalten untersucht. Die Ergebnisse sollen dazu beitragen, den Lötprozess durch den Einsatz spezieller Kupferbasislote zu optimieren und durch reduzierten Energieeintrag ein homogeneres Eigenschaftsfeld im Bereich der Fügestelle zu erzeugen. Den Verarbeitern dieser Werkstoffe soll die Möglichkeit gegeben werden, diese Werkstoffe rationeller und mit höherer Effektivität zu verarbeiten. Im Ergebnis der Arbeit sollen Verbesserungen der Eigenschaften der Lötnähte erzielt werden, die

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