5CrNiMo模块锻件拔长折叠产生的判据条件

doi:10.3969/j.issn.1000-565X.2014.11.003

华南理工大学学报（自然科学版） ›› 2014, Vol. 42 ›› Issue (11): 14-18,24.doi: 10.3969/j.issn.1000-565X.2014.11.003

5CrNiMo模块锻件拔长折叠产生的判据条件

赵学智¹范燕波¹夏琴香^1†吕明柯²

1．华南理工大学机械与汽车工程学院，广东广州 510640; 2．韶关市中机重工锻压有限公司，广东韶关 512000

收稿日期:2014-05-21 修回日期:2014-07-21 出版日期:2014-11-25 发布日期:2014-11-17
通信作者: 夏琴香(1964-)，女，博士，教授，博士生导师，主要从事塑性加工研究． E-mail:meqxxia@scut.edu.cn
作者简介:赵学智(1970-)，男，博士，教授，博士生导师，主要从事塑性加工研究．E-mail:mezhaoxz@scut．edu．cn
基金资助:
国家自然科学基金资助项目(51375172);韶关市科技计划项目(2011CXY/C15)

Folding Criterion of Die Block Forging of 5CrNiMo During Stretching

Zhao Xue-zhi¹ Fan Yan-bo¹ Xia Qin-xiang¹ Lü Ming- ke²

1.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Shaoguan Zhongji Heavy Forging Co.,Ltd.,Shaoguan 512000,Guangdong,China

Received:2014-05-21 Revised:2014-07-21 Online:2014-11-25 Published:2014-11-17
Contact: 夏琴香(1964-)，女，博士，教授，博士生导师，主要从事塑性加工研究． E-mail:meqxxia@scut.edu.cn
About author:赵学智(1970-)，男，博士，教授，博士生导师，主要从事塑性加工研究．E-mail:mezhaoxz@scut．edu．cn
Supported by:
国家自然科学基金资助项目(51375172);韶关市科技计划项目(2011CXY/C15)

摘要/Abstract

摘要： 为了研究不同压下量和送进量对拔长过程中锻件表面质量的影响，建立拔长折叠产生的判断条件，以5CrNiMo 模块锻件为对象，用有限元软件 DEFORM-3D 建立了相对应的拔长模型，分析压下量和送进量比(M 值)对最大折叠角和折叠深度的影响．结果表明，产生拔长折叠的 M 值临界区间为0．8 ～1．0．由此建立了拔长过程中锻件表面折叠产生的判据:M 值低于0．8 ～1．0 这一区间时，锻件表面不产生折叠;M 值属于或超出该区间时，锻件表面产生折叠．

关键词: 5CrNiMo, 模块锻件, 拔长, 折叠判据, DEFORM- 3D

Abstract:

In order to reveal the effects of reduction and feed amount on the surface quality of forgings during the stretching,and to establish a criterion judging the occurrence of stretching folding,a stretching model of 5CrNiMo die block forgings is constructed by means of the FEM software DEFORM- 3D,and the effects of the reduction- to- feed amount ratio (namely the M value) on the maximum folding corner and the folding depth are discussed.It is found that the stretching folding occurs at a critical M interval of 0.8 ～1.0.On this basis,a criterion to judge the occurrence of folding during the stretching is established,that is,the folding of forging surfaces can be avoided when M is less than the range of 0.8 ～1.0,while the folding occurs when M is within or exceeds the range of 0.8 ～1.0.

Key words: 5CrNiMo, die block forging, stretching, folding criterion, DEFORM- 3D

中图分类号:

TG316.2

赵学智范燕波夏琴香吕明柯. 5CrNiMo模块锻件拔长折叠产生的判据条件[J]. 华南理工大学学报（自然科学版）, 2014, 42(11): 14-18,24.

Zhao Xue-zhi Fan Yan-bo Xia Qin-xiang Lü Ming- ke . Folding Criterion of Die Block Forging of 5CrNiMo During Stretching[J]. Journal of South China University of Technology (Natural Science Edition), 2014, 42(11): 14-18,24.

5CrNiMo模块锻件拔长折叠产生的判据条件

Folding Criterion of Die Block Forging of 5CrNiMo During Stretching

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价