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, CAI Yu-jun, et al. Prediction model of hot stamping thinning of 7075 aluminum alloy windshield beam[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(3): 590-597. DOI: 10.11817/j... s.实验中润滑剂使用二硫化钼(用于板料冲压时的摩擦因数约为0.12~0.15[16]).所得实验产品如图10所示. 图9 冲压模具及机床 Fig. 9 Stamping die and machine tool 图10 热冲压成形挡风梁 Fig. 10 Hot stamped windshield beam 采用海克斯康关节臂Romer7525对......
; stamping formability CLC number: TG146.2 Document code: A 1 INTRODUCTION The heat-treatable Al-Mg-Si-Cu (6000 series) aluminium alloys as automotive body sheet materials are being brought...] when carrying out per-aging treatment were also studied. So far, research on effects of variation of Mg content on microstructures, tensile properties and stamping formability of the aluminium alloys......
casting and the hot-rolling process. The mechanical properties, conical cup value (CCV), bore expanding performance, and limit drawing ratio (LDR) were investigated to examine the stamping formability...Stamping Formability of ZE10 Magnesium Alloy Sheets Li Yuanyuan1,Liu Ying2,Li Wei2 (1.Key Laboratory for Advanced Metallic Materials Processing and Forming of Guangdong, South China University......
Effects of Austempering after Hot Deformation on the Mechanical Properties of Hot Rolled Si-Mn TRIP Steel Sheets LI Zhuang1,WU Di1,ZHANG Ping-li3 (1.State Key Lab of Rolling and Automation... properties are obtained by austempering after hot deformation without subsequent heat treatment in the present Si-Mn TRIP steel sheets. Isothermal holding time after finishing rolling has affected......
工艺参数对热冲压成型钢组织性能及硼偏聚的影响 米振莉1,唐荻1,陈雨来1,江海涛1 (1.北京科技大学,高效轧制国家工程研究中心,北京,100083) 摘要:通过Gleeble1500热/力模拟实验机对轧后含硼钢板进行了热冲压过程模拟,分析了各种热处理条件对含硼钢组织性能的影响,并采用X射线衍射技术和径迹照相技术分析了硼的偏聚和硼相析出情况.研究结果表明:提高加热温度或延长保温时间,可促进钢的奥氏体化和硼的偏聚.通过偏聚合适含量的硼,能够很好地起到提高淬透性作用,使材料得到全部马氏体组织.热冲压成型过程中的变形破碎了奥氏体组织,促进相变,更易获得细小的马氏体组织.当冷却速度不高时,钢中"硼相"会沿晶界连续析出,从而降低了硼钢的淬透性. 关键词:热冲压成型; 硼钢; 马氏体; 硼偏聚; hot stamping; boron-bearing steel; martensite......
Trans. Nonferrous Met. Soc. China 22(2012) s534-s541 Effect of tool temperature and punch speed on hot stamping of ultra high strength steel LIU Wei1, 2, LIU Hong-sheng3, XING Zhong-wen3, LIU Gang1... at elevated temperatures. In addition, hot stamping experiments were conducted and combined with the simulation to investigate the effect of tool temperature and punch speed on the hot stamping of UHS sheet......
Hot Corrosion Behaviors of Ni-14%Cr Alloys in Molten Sulfate () 摘要:The corrosion behaviors and mechanism of Ni-14%Cr alloys in molten salt with Na_2SO_4 at 1000℃ was investigated by means of XRD... prevents the S and O from the matrix of the alloy. The morphology examinations tend to support the sulphidization-basic dissolution model previously proposed for hot corrosion mechanism. 关键词:hot......
Trans. Nonferrous Met. Soc. China 22(2012) s496-s503 Smart hot stamping of ultra-high strength steel parts Ken-ichiro MORI Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi 441-8580, Japan Received 28 August 2012; accepted 25 October 2012 Abstract: Smart hot stamping processes of ultra-high strength steel parts have been developed to overcome difficulties......
Trans. Nonferrous Met. Soc. China 22(2012) s542-s547 Hot formation quality of high strength steel BR1500HS for hot stamping without cooling system LIU Hong-sheng, XING Zhong-wen, LEI Cheng-xi School... part, and the effects of hot stamping process parameters including blank holder force (BHF), forming temperature and tool temperature on the hot formation quality were investigated. Since the hot......
Microstructure evolution of TA15 titanium alloy during hot power spinningCHEN Yong, XU Wen-chen, SHAN De-bin, GUO Bin(School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)Abstract:The microstructure evolution of TA15 titanium alloy during hot power spinning was studied. Effects of wall reduction on microstructure evolution of TA15 titanium alloy were......
