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Analysis of a New Process for Forming Two Flanges Simultaneously in a Hollow Part by Extrusion with Two Moving Dies
1
Faculty of Mechanical Engineering, Lublin University of Technology, Nadbystrzycka 38D, 20-618 Lublin, Poland
2
Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstańców Warszawy 8, 35-959 Rzeszów, Poland
3
Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, J.H. Dąbrowskiego 69, 42-201 Częstochowa, Poland
*
Author to whom correspondence should be addressed.
Metals 2024, 14(6), 612; https://doi.org/10.3390/met14060612
Submission received: 13 March 2024
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Revised: 20 May 2024
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Accepted: 20 May 2024
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Published: 22 May 2024
(This article belongs to the Special Issue Advances in Modeling and Simulation in Metal Forming)
Abstract
This paper presents a new method for forming flanges in hollow parts. The process consists of an extrusion with two dies that move in an opposite direction to that of the punches. This particular kinematics of the tools makes it possible to form two flanges simultaneously in a single tool pass. The proposed method was investigated using a tube made of steel 42CrMo4. It was assumed that the extrusion would be conducted as a cold forming process at ambient temperature. Different diameters and heights of the impression made in the top and bottom dies were used. It was demonstrated that the main failure mode of the proposed technique was an unintended increase in the inside the diameter of the workpiece in the flange zone. The results showed that the above parameters had a key impact on the achievable maximum flange diameters and heights.
Keywords:
metal forming; flange; extrusion; stepped hollow shaft
Share and Cite
MDPI and ACS Style
Winiarski, G.; Gontarz, A.; Skrzat, A.; Wójcik, M.; Wencel, S. Analysis of a New Process for Forming Two Flanges Simultaneously in a Hollow Part by Extrusion with Two Moving Dies. Metals 2024, 14, 612. https://doi.org/10.3390/met14060612
AMA Style
Winiarski G, Gontarz A, Skrzat A, Wójcik M, Wencel S. Analysis of a New Process for Forming Two Flanges Simultaneously in a Hollow Part by Extrusion with Two Moving Dies. Metals. 2024; 14(6):612. https://doi.org/10.3390/met14060612
Chicago/Turabian StyleWiniarski, Grzegorz, Andrzej Gontarz, Andrzej Skrzat, Marta Wójcik, and Sylwia Wencel. 2024. "Analysis of a New Process for Forming Two Flanges Simultaneously in a Hollow Part by Extrusion with Two Moving Dies" Metals 14, no. 6: 612. https://doi.org/10.3390/met14060612
Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.
