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Abstract：
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The whole forging process of long-axis heavy forging was divided into three steps,including squaring,stretching and chamfering-rounding.In order to establish the chamfering-rounding technological parameter exactly,to improve the forging quality and to guide the actual production,the corresponding finite element model by means of DEFORM-3D software was set up,and the chamfering-rounding process was simulated.The three techniques,chamfering-rounding by flat,90°V-shape and 120°V-shape anvils,were compared in terms of the size precision and the internal state of strain-stress.The results show that the forging quality is the best by using 120°V-shape anvil.
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Funds：
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2008年广州市科技支撑计划项目(2008Z1-D221);;
2009年广东省重大科技专项(2009A080304004)
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AuthorIntro：
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Reference：
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[1]付强,崔振山,陈文,等.不同型砧下大型轴类锻件倒棱滚圆过程的数值模拟研究[J].模具技术,2008,(3):1-6.
[2]底学晋,李建华,蔡墉.我国大锻件生产行业建设发展回眸[J].重型机械,2000,(1):1-5.
[3]郭会光.我国大型锻造的发展与提高[J].机械工人热加工,2005,(7):14-15.
[4]崔振山,徐秉业,任广升,等.圆柱体内部空洞热锻闭合过程的数值模拟[J].塑性工程学报,2002,9(1):49-52.
[5]刘助拍,朱继武.新拔长理论工艺参数的量值匹配与确定[J].机械工程学报,1994,30(5):83-86.
[6]孙海燕.锻件工艺参数对改善超声波探伤缺陷的影响[J].大型铸锻件,2001,(2):31-39.
[7]董节功,周旭东,朱锦洪,等.径向锻造三维成形锻透性的数值模拟[J].机械工程材料,2007,31(3):76-78.
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