浮压法压实楔横轧轴件心部空洞的机理研究

田端阳; 束学道; 王雨; 魏伊伦; 殷安民

doi:10.13433/j.cnki.1003-8728.2017.0716

浮压法压实楔横轧轴件心部空洞的机理研究

doi: 10.13433/j.cnki.1003-8728.2017.0716

田端阳^1,2,
束学道^1,2, ,,
王雨^1,2,
魏伊伦^1,2,
殷安民^1,2

1.
宁波大学机械工程与力学学院, 浙江宁波 315211;
2.
浙江省零件轧制成形技术研究重点实验室, 浙江宁波 315211

基金项目:

国家自然科学基金项目（51475247）与浙江省科技计划项目（2016C31018）资助

详细信息

作者简介:
田端阳(1992-),硕士,研究方向为塑性成形工艺,13355211308@163.com

通讯作者:
束学道(联系人),教授,博士后,shuxuedao@nbu.edu.cn

计量
- 文章访问数: 157
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- 被引次数: 0
出版历程
- 收稿日期: 2016-10-24
- 刊出日期: 2017-07-05

Study on Compacting Mechanism of Core Void for Cross Wedge Rolling Shaft Using Floating-pressure Method

Tian Duanyang^1,2,
Shu Xuedao^{1,2
, ,},
Wang Yu^1,2,
Wei Yilun^1,2,
Yin Anming^1,2

1.
Faculty of mechanical engineering & mechanics, Ningbo University, Zhejiang Ningbo 315211, China;
2.
Zhejiang Provincial Key Laboratory of Part Rolling Technology, Zhejiang Ningbo 315211, China

摘要

摘要: 为有效地消除心部空洞，提高楔横轧轴件的机械性能，提出利用高压气体压实楔横轧轴件心部空洞的新方法，简称浮压法。利用DEFORM-3D有限元软件，研究了浮压法实现轴件心部空洞闭合的机理和工艺参数的影响规律。结果表明：心部空洞闭合的条件是高温轴件应受三向压应力、负平均应力和较大的剪应力共同作用；气压或轴件温度越高，空洞闭合就越快，但对轴件外形尺寸几乎没有影响。
- 楔横轧轴件 /
- 浮压法 /
- 心部空洞 /
- 数值模拟
Abstract: In order to effectively eliminate the core void and improve the mechanical properties of CWR shaft, a new method with high-pressure gas to compact CWR shaft core void, briefly called floating-pressure method, is put forward. The mechanism of void closure and the influence law of the processing parameters is investigated with DEFORM-3D. The results show the condition of core void closure is that the high-temperature shaft should be subjected via three directional compressive stress, negative mean stress and large shear stress; the higher the gas pressure or the shaft temperature is, the more quickly the void close, but there is the slight effect on the shafts' shape and size.
- CWR shaft /
- floating-pressure method /
- core void /
- numerical simulation

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参考文献(15)

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