Formability Analysis and Control of SUS430 Stainless Steel
Author of the article:GUO Rong;LIU Tianzeng;YANG Ruicheng
Author's Workplace：Jiuquan Iron and Steel of Group Co.,Ltd.,Jiayuguan 735100,China;Lanzhou University of Technology,Lanzhou 730000,China
Key Words：SUS430 formability cracking r
Abstract：The stamping formability of SUS430 ferritic stainless steel was studied.The value of high axial crystallinity coil r was 0.905.The results show that the tensile strength of coils with lower open rolling temperature is slightly higher than that of coils with normal rolling temperature,and the tensile strength of coils with lower open rolling temperature r is 0.858.The yield strength,tensile strength and elongation of test rolls increased by 24.17 MPa,8.25 MPa and 1.81%,respectively,and the values r and△r is higher by 0.57 and 0.094,respectively.The yield strength of the test roll is about 10 MPa lower than that of the test roll under high pressure,and the tensile strength value is not different from that of the test roll under high pressure.The elongation is 1.72%higher,and the values r and△r is 0.16 and△r is 0.175 higher.Both the elongation and the formability of the coil are improved,but the anisotropy of the material is improved by increasing the value of△r during the second rolling process.In the production process,for the stamping performance of some can choose a large pressure down process,rolling process pressure down rate control in more than 70%;For complex structure,high stamping requirements to adopt two rolling process.
