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摘要：
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通过分析连杆及其辊锻件,并综合考虑锻件节料最大化及工艺的可行性,对连杆辊锻件各区段长度及杆部横截面积进行了重新分配。根据新辊锻件最小截面的总延伸系数,试选3套不同的槽系方案分别计算分析,最终确定"椭圆-方形-椭圆-方形"槽系组合为该连杆制坯辊锻的优化方案,并设计了相应的辊锻模。经三维有限元数值仿真及实物生产证实:辊锻结果与设计吻合良好,单件连杆锻件下料重量降低了17%。
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Length of each segment on the roll forging piece and cross section area of its rod were redistributed by analyzing the connecting rod and its roll forging piece.Meanwhile,the maximum of material economy and feasibility of process were taken into account synthetically.According to total elongation coefficient of minimum cross section of the new roll forging piece,three different groove systems were chosen to carry out the calculation and analysis respectively.Finally,"ellipse-square-ellipse-square"groove system was selected as optimization scheme of roll forging blanking for the connecting rod and corresponding roll forging die was designed.Both three-dimensional finite element method numerical simulation and actual forging production show that the roll forging result is consistent well with design and blank weight of each connecting rod forging is reduced by 17%.
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作者简介：
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参考文献：
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[1]傅沛福.辊锻理论与工艺[M].吉林:吉林人民出版社,1982.
[2]张承鉴.辊锻技术[M].北京:机械工业出版社,1986.
[3]邬玉昌.制坯辊锻模自动设计系统的开发[J].锻压技术,2006,31(2):103-106.
[4]邬玉昌,胡红卫,琚杰,等.KD-002凸缘锻模设计及成形过程有限元分析[J].锻压装备与制造技术,2009,(3):70-73.
[5]高世义,张建民,杨慎华,等.等截面锻件辊锻前滑动力学模型的建立和分析[J].农业机械学报,1991,(2):89-91.
[6]刘桂华,任广升,徐春国,等.辊锻三维变形过程的数值模拟研究[J].塑性工程学报,2004,11(3):89-92.
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