| 轴类大锻件压方时锻件表面质量和内部应力状态的影响因素研究 |
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| 引用本文： | 夏琴香,单会星,霍育林,宗伟奇,向延平.轴类大锻件压方时锻件表面质量和内部应力状态的影响因素研究[J].模具工业,2010,36(2):1-5. |
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| 作者姓名： | 夏琴香 单会星 霍育林 宗伟奇 向延平 |
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| 作者单位： | 1. 华南理工大学机械与汽车工程学院,广东,广州,510640
2. 广州造船厂有限公司,广东,广州,510382 |
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| 基金项目： | 广州市工业科技支撑计划项目(2008Z1-D221) |
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| 摘 要： | 轴类大锻件的锻造过程分为压方、拔长和倒棱滚圆三大步骤。目前对锻造工艺的研究集中在拔长工艺优化上,忽略了压方和倒棱滚圆对锻件质量的影响。为制定准确的压方工艺参数以提高锻件质量并指导实际生产,应用有限元软件DEFORM_3D建立相应的分析模型,对压方过程进行模拟,从锻件内部应力状态、锻透性及锻件裂纹3个方面对比分析了平砧压方和90°V型砧压方2种工艺方法,结果显示:采用90°V型砧压方时,锻件质量显著提高。
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| 关 键 词： | 轴类大锻件 压方 应力状态 锻透性 裂纹 |
Factors of influencing the surface quality and internal stress state of heavy long-axis forgings in squaring process |
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| XIA Qin-xiang,SHAN Hui-xing,HUO Yu-lin,ZONG Wei-qi,XIANG Yan-ping.Factors of influencing the surface quality and internal stress state of heavy long-axis forgings in squaring process[J].Die & Mould Industry,2010,36(2):1-5. |
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| Authors: | XIA Qin-xiang SHAN Hui-xing HUO Yu-lin ZONG Wei-qi XIANG Yan-ping |
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| Affiliation: | 1.School of Mechanical and Automotive Engineering/a>;South China University of Technology/a>;Guangzhou/a>;Guangdong 510640/a>;China/a>;2.Guangzhou Shipyard International Company Limited/a>;Guangdong 510382/a>;China |
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| Abstract: | An entire forging process for heavy long-axis forgings was divided into three steps,i.e.squaring,stretching,chamfering and rounding.Researches of forging process are now focused on the optimization of stretching,but the effect of squaring or chamfering and rounding on the forging quality is neglected.In order to get accurate squaring parameters and improve the quality of forgings and guide the actual production,a corresponding analysis model based on finite element software DEFORM-3D was created.Two squarin... |
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| Keywords: | heavy long-axis forging squaring stress state forging penetration efficiency crack |
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