A Study on Warm Micro Backward Extrusion of SUS 304 Stainless Steel

摘要：

A metal forming system comprising an electrical heater, capable of conducting processes at elevated temperatures, was developed to perform micro backward extrusion processes of SUS 304 stainless steel. Two punches with diameters of 1.6 mm and 1.8 mm were used to extrude the billets inside the die with an inner diameter of 2 mm. All processes were lubricated with water-based graphite and conducted under isothermal conditions at 400 °C. The results show that the developed extrusion system can be used to produce the stainless steel components with a micro cup-shaped profile. Moreover, the variation in the rim height of the cups produced by the 1.8 mm diameter punch is greater than the one by the 1.6 mm diameter punch. The results show that a decrease in the clearance between the punch and die could lead to an increase in the inhomogeneity of material flow in the micro backward extrusion processes.

关键词： metal forming micro backward extrusion stainless steel

作者: Chao-Cheng Chang Dinh-Hiep Nguyen Hsin-Sheng Hsiao

作者单位: Department of Mold and Die Engineering,National Kaohsiung University of Applied Sciences,No. 415, Ch Department of Mold and Die Engineering,National Kaohsiung University of Applied Sciences,No. 415, Ch

会议类型: 国际会议

会议名称: Fourth International Conference on Advanced Design and Manufacturing(第四届先进设计与制造国际会议)

会议地点: 昆明

会议语种:英文

页码: 139-142

在线出版日期: 2011-09-21（万方平台首次上网日期，不代表论文的发表时间）