International Journal of Material Forming

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On the numerical prediction of the torque-to-turn-value of a blind rivet nut
International Journal of Material Forming - Tập 13 - Trang 127-141 - 2019
A. Van de Velde, S. Coppieters, J. Maeyens, M. Wevers, D. Debruyne
In the present paper, finite element simulations are used to gain a better understanding of the setting process of a blind rivet nut. A blind rivet nut is a mechanical fastener capable of clinching materials whilst providing a threaded solution without the need for thread forming. The technique relies on plastic deformation introduced by axial compression of the rivet nut in such a way that a coun... hiện toàn bộ
Feasibility study for the manufacturing of hybrid pinion shafts with the cross-wedge rolling process
International Journal of Material Forming - Tập 16 - Trang 1-10 - 2023
Paulina Merkel, Laura Budde, Jan Grajczak, Christian Nowroth, Vannila Prasanthan, Mareile Kriwall, Marius Lammers, Sarah Nothdurft, Jörg Hermsdorf, Jens Twiefel, Ludger Overmeyer, Stefan Kaierle, Jörg Wallaschek, Bernd Breidenstein, Bernd-Arno Behrens, Malte Stonis
The Collaborative Research Center 1153 is investigating an innovative process chain for the production of hybrid components. The hybrid workpieces are first joined and then formed by cross-wedge rolling. Pinion shafts were manufactured to investigate the behavior of the joining zone under increased complexity of the forming process. For this purpose, six types of workpieces produced by three types... hiện toàn bộ
A new technique of weaving 3d surface application to carbon/epoxy corner fitting plies
International Journal of Material Forming - Tập 2 Số S1 - Trang 185-187 - 2009
Xavier Legrand, François Boussu, Philippe Blot, Dominique Guitard
Contact Effects in Bending Affecting Stress and Formability
International Journal of Material Forming - Tập 3 - Trang 1159-1162 - 2010
W. C. Emmens, A. H. van den Boogaard
If a strip is pulled over a curved tool there is a contact stress acting on the strip. This contact stress changes the stress state in the material, which is analysed with a simple model. One effect is that the yield stress in tension is reduced. Predictions by the model agree with observation from a 90-degree bending test found in literature, and indirectly with observation from a stretch-bend te... hiện toàn bộ
Optimum design of composite pressure vessel structure based on 3-dimensional failure criteria
International Journal of Material Forming - Tập 13 - Trang 957-965 - 2019
Young H. Park, James Sakai
Anisotropic composite cylinders and pressure vessels have been widely employed in automotive, aerospace, chemical and other engineering areas due to high strength/stiffness-to-weight ratio, exceptional corrosion resistance, and superb thermal performance. Pipes, fuel tanks, chemical containers, rocket motor cases and aircraft and ship elements are a few examples of structural application of fiber ... hiện toàn bộ
Mô hình hóa hiệu ứng tải ngược bao gồm tình trạng dừng lại của độ cứng và quá trình tái dẻo sớm Dịch bởi AI
International Journal of Material Forming - Tập 1 - Trang 145-148 - 2008
W. Kubli, A. Krasovskyy, M. Sester
Bài báo này đề cập đến hiệu ứng Bauschinger trong mô phỏng hình thành tấm kim loại. Một khái niệm về mô hình vật liệu mới được trình bày, có khả năng xử lý chính xác các hiện tượng tái dẻo sớm, sự làm mềm tạm thời và tình trạng dừng lại của độ cứng khi đảo chiều tải. Bên cạnh dữ liệu tiêu chuẩn thường được sử dụng cho các mô phỏng dựa trên độ cứng đồng nhất, mô hình này chỉ yêu cầu thêm bốn tham s... hiện toàn bộ
#hiệu ứng Bauschinger #mô hình vật liệu #tái dẻo #tấm kim loại #phục hồi hình dạng #thép cường độ cao
Study on necking defects, microstructure and mechanical properties of TC4 alloy by cross wedge rolling
International Journal of Material Forming - Tập 15 - Trang 1-21 - 2022
Peiai Li, Baoyu Wang, Cuiping Yang, Huibo Zhang, Wei Li, Jing Zhou
The TC4 alloy is an ideal material for the lower control arm of military vehicles due to its low density and high strength. The TC4 alloy lower control arm formed by cross wedge rolling (CWR) has high innovation and application value. Based on the Arrhenius equation, the constitutive equation for the α + β two-phase region of the TC4 alloy was established and applied to the finite element model (F... hiện toàn bộ
Influence of Sheet Metal Pre-forming on Edge Crack Sensitivity using an AHSS Steel Grade
International Journal of Material Forming - Tập 15 - Trang 1-11 - 2022
M. Feistle, A. Kindsmüller, I. Pätzold, R. Golle, W. Volk
Especially in the automotive sector, high-strength sheet materials are processed in the manufacturing industry. These steels often show a pronounced sensitivity to edge cracks. Because of this, many edge crack testing methods for a wide variety of stress conditions have been developed to describe the edge crack sensitivity of a material. Only the hole expansion test according to ISO 16630 has been... hiện toàn bộ
Parametric evaluation of part distortion in additive manufacturing processes
International Journal of Material Forming - Tập 13 Số 1 - Trang 29-41 - 2020
Giacomo Quaranta, E. Haug, Jean‐Louis Duval, Francisco Chinesta
Formability analysis of thin press hardening steel sheets under isothermal and non-isothermal conditions
International Journal of Material Forming - Tập 10 - Trang 405-419 - 2016
G. Georgiadis, A. E. Tekkaya, P. Weigert, S. Horneber, P. Aliaga Kuhnle
Aiming at the enhancement of the lightweight potential of press hardening steels, investigations on the formability of thin, boron alloyed, hot dip aluminized steel sheets are carried out. The material formability is described through Forming Limit Diagram (FLD), determined by means of Nakajima formability test of thin 22MnB5 sheets (0.50 mm, 0.80 mm, 1.25 mm) at elevated temperatures. The influen... hiện toàn bộ
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