Modares Mechanical Engineering

Modares Mechanical Engineering

Experimental and numerical study of spring back of C-die forming in austenitic stainless steel 316 and carbon steel ST37 sheets with different thicknesses

Document Type : Original Research

Authors
Hamidreza Rezaei Ashtiani 1
Naser Meyghani 2
omid Khalili 2
1 Associate professor in the Mechanical Engineering Department, Arak University of Technology
2 Arak University of Technology
10.48311/MME.23.12.651
Abstract
At the end of the forming process, when the part is removed from the mandrel and the matrix and the part is loaded, a deformation occurs in the part, and this deformation after forming is called spring back. This research was carried out in order to experimentally determine the spring return of stainless steel 316 and carbon steel ST37 with different thicknesses in C-die forming and compare it with finite element simulation. The parts with three thicknesses of 1, 1.5, and 2 mm, forming and the geometrical dimensions of the spring back of the sheets have been verified. The results showed that the experimental spring back in the finite element simulation is consistent with the test, and also by reducing the thickness, spring back increases, which is affected by perfect elastic zone and surface plastic strain and membrane and bending stress.
Keywords
Spring Back
Bending
Stainless Steel 316
Carbon Steel ST37
Elastic Strain
Sheet Thickness

Subjects

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Modares Mechanical Engineering
Volume 23, Issue 12
December 2023
Pages 651-659