Investigation on Properties and Microstructure in Hot Stamping Operation of Rear Axle Beams
In the automotive industry, the hot forming of high strength steels offers the possibility to obtain significant reduction of weight without affecting the structural performances of final products.The main reason of its restricted application in the industry lies however in the lack of basic knowledge about mechanical and microstructural characteristics of sheets at elevated temperature,boundary conditions, and other process parameters.To partially overcome this limitation, this paper presents a research on the material properties of the hot stamping steel 22MnB5.Sheets of boron steel22MnB5 with a thickness of 3.8mm were investigated and the results of experimental hot stamping tests were considered.The yield strength (YS) reached about 1200MPa, tensile strength (TS) reached 1500MPa, microhardness reached over 450HV at heating temperature of 880℃ and holding 5 min.
22MnB5 hot stamping high strength steels sheet metal formability rear axle beam
Xiaochun Jin Yongshen Xue Qingnan Ma Mei Zhang Lin Li
Shanghai Huizhong Automotive Manufacturing Co.,Ltd,Shanghai 200122,China School of Materials Science and Technology,Shanghai University,Shanghai 200072 China
国际会议
2014 International Conference on Hot Stamping of UHSS(2014高强度钢热冲压成形国际会议)
重庆
英文
221-225
2014-08-21（万方平台首次上网日期，不代表论文的发表时间）