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1. 江苏大学材料科学与工程学院
2. 江苏大学 材料科学与工程学院江苏,镇江,212013
纸质出版日期:2009,
网络出版日期:2008-10-24,
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张青来,肖富贵,郭海玲.镁合金板材热渐进成形的实验研究[J].工程科学与技术,2009,41(5):120-125.
ZHANG Qing-lai, 肖富贵, 郭海玲. Research on the Incremental Forming of AZ31B Sheet at Elevated Temperature[J]. Advanced Engineering Sciences, 2009,41(5):120-125.
中文摘要: 利用数控实验机床(CNC),热拉伸实验机和金相显微镜,对AZ31B镁合金板材热渐进成形进行了工艺研究和理论分析。结果表明
镁合金板料在加热条件下可以实现单点渐进成形。极限角随板材厚度和成形温度的增加而增加;各向异性对250℃条件下板料渐进成形影响程度最小;板材的质量是镁合金渐进成形产生缺陷的主要因素之一。AZ31B板料热渐进成形工艺制度:厚度为0.3~1.5 mm,最佳成形温度区间为200~250 ℃,进给量△δ区间为0.1~0.6 mm,成形时间控制在25~30 min,成形极限角为50°~65°。
Abstract:The process and theory of AZ31B magnesium alloy thin sheet incremental forming at elevated temperature was investigated by CNC machine
thermal stretch machine and metallographic microscope. The results showed that AZ31B alloy thin sheet at elevated temperature can be formed successfully by single point incremental forming. Forming limit angle increases with the increasing of temperature and initial thickness. The effect of anisotropy on AZ31B sheet incremental forming was the minimum at 250 ℃
and the quality of metal sheet was the main factor which can bring defects during the incremental forming. The technical parameters of AZ31B sheet incremental forming were as follows: initial thickness of thin sheet was 0.3~1.5 mm,the best forming temperature was 200~250 ℃
the amount of tool’s feed was 0.1~0.6 mm
the forming time was 25~30 min
and the incremental forming limiting angle was 50°~65°.
镁合金热渐进成形各向异性微观组织
magnesium alloyheat incremental forminganisotropymicrostructure
G. Hussain ;L. Gao,A novel method to test the thinning limits of sheet metals in negative incremental forming,International Journal of Machine Tools & Manufacture ,2007, 47(3/4).
严红革;刘俊伟;陈振华.AZ31镁合金板材超塑性气胀成形研究[J].热加工工艺,2006(5)
C.C. Wong ;T.A. Dean ;J. Lin,Incremental forming of solid cylindrical components using flow forming principles,Journal of Materials Processing Technology ,2004, 153/154(0).
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Kopac J;Kampus Z,Incremental sheet metal forming on CNC milling machine-tool,Journal of Materials Processing Technology,2005.
Ambrogio G;Filice L;Micari F,A force measuring based strategy for failure prevention in incremental forming,Journal of Materials Processing Technology,2006.
W. -J. Kim ;S. W. Chung ;C. S. Chung ;D. Kum,Superplasticity in magnesium alloy sheets and deformation mechanism maps for magnesium alloys at elevated temperatures,Acta Materialia ,2001, 49(16).
Yoshihara S;Manabea K;Nishimura H,Effect of blank holder force control in deep-drawing process of magnesium alloy sheet,Journal of Materials Processing Technology
张青来;胡永学;王粒粒.AZ31B镁合金拉伸时应力-应变和再结晶组织[J].稀有金属材料与工程,2008(4)
W. B. Lievers ;A. K. Pilkey ;D. J. Lloyd,Using incremental forming to calibrate a void nucleation model for automotive aluminum sheet alloys,Acta Materialia ,2004, 52(10).
张青来,卢晨,朱燕萍.轧制方式对AZ31镁合金薄板组织和性能的影响[J].中国有色金属学报,2004(3)
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