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A High-Precision Micro-Roll Forming Facility for Fuel Cell Metal Bipolar Plate Production [PDF]
MicromachinesThe metal bipolar plate is a critical component of the hydrogen fuel cell stack used in proton exchange membrane fuel cells. Bipolar plates must have high accuracy micro-channels with a high aspect ratio (AR) between the channel depth and the half ...
Matthias Weiss +2 more
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Surface forming mechanism and numerical simulation study in four-roll flexible rolling forming
HeliyonThis study investigates the surface forming mechanism in four-roll flexible rolling forming processes, addressing issues of low efficiency and significant residual stresses, particularly when dealing with lightweight high-strength materials such as LY12 ...
Peng Chen, Shihong Lu
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Shanghai Jiaotong Daxue xuebao, 2023 In order to solve the forming problems such as difficult deformation and easy cracking of high strength steel square tubes, the local induction heating technology has been introduced based on the traditional cold forming process.
WANG Yu, LIU Jing, MA Xiaoyan, HAN Jingtao
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Modeling and Experiment on Roll-Hemming Forming Process of Aluminum Alloy Sheet with Adhesive
Shanghai Jiaotong Daxue xuebao, 2022 In the roll-hemming forming process of door cover, the non-metallic flanging adhesive and the interaction between light metal and flanging adhesive will affect the manufacturing accuracy and performance of the door cover, and increase the difficulty of ...
LI Yuanhui, LI Jianjun, WANG Shunchao, ZHANG Longyao, ZHU Wenfeng
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Effect of Geometrical Factors on Torsion in Cold Roll Forming of the Lower Side Beam of a Car
Applied Sciences, 2021 Cold roll forming is a continuous metal forming process used to produce a large variety of profiles. A significant product of cold roll forming is asymmetric profiles, whose application is expanding in the construction of cars, houses, bridges, etc ...
Yesong Wang +4 more
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Materials & Design, 2023 Bending angle is an important parameter in multi-pass roll forming. However, in actual manufacturing, there is still a lack of theoretical guidance; hence, rebound defects are commonly observed.
Chunjian Su +6 more
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Flange Wrinkling in Flexible Roll Forming Process [PDF]
, 2014 Flexible roll forming is an advanced sheet metal forming process for producing variable cross section profiles. Flange wrinkling at the transition zone where the cross section changes is a major defect in the flexible roll forming process. In this paper,
Kasaei, Mohammad Mehdi +9 more
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Investigation into the numerical model behaviour of Belleville washers in cold roll forming [PDF]
, 2016 With the steadily increase in demand for roll formed products due to their application for fields such as automotive, construction, architecture, etc., roll forming companies are challenge with rising customer demands. Companies are struggling to bring a
English, Martin +2 more
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Journal of Machine Engineering, 2023 The hollow embossing rolling of thin-walled high precision components like metallic bipolar half plates is characterized by narrow process windows. Here, the knowledge of interaction between forming machine, roll and process is crucial for the process ...
Martin Wagner +5 more
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Stable incremental deformation of a strip to high strain [PDF]
, 2007 This paper presents the effect of combined stretching and bending on the achieved strain in\ud incremental sheet forming ISF. A simple two dimensional model of strip undergoing stretching and\ud travelling three point bending in cyclic form is used.
Boogaard, A.H. van den +2 more
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