汽车用高功能性锻造镁合金轮圈开发.pdfVIP

汽車用高功能性鍛造鎂合金輪圈開發* Development of High Functional Forged Magnesium Alloy Wheels for Automobile Application 1 2 3 T.S. Chou, H.C. Liao, S.Y. Chang A un i qu e h ex ag on al cl o sed p ack in m a gn e siu m a l l oy s ar e h i gh ly r i g i d f or manufacturing the forged magnesium alloy wheels and rims. In this study, we developed a technology for manu facturing one-piece t y p e f or g e d m a g n e s i u m a l l oy w h e e l s . We sy st em atically investigat ed th e alloy s h ot workin g b eh avior s an d th e ch an ge in microstructure and mechanical prop erties. We optimized pre-heat treatment , working t emp er atur e , str ain r at e an d defor m at ion degree to enhance the medium temperature deformation behavior. The one-piece forged magnesium alloy wheels are highly functional and lightweight energy savers. 關鍵字詞 Key words: Forged, flow-forming, magnesium alloy, wheel 一、前　言 (1) 1 (2) * 1 2 3 鑛冶 60/4 －17 － 2 3