Effect of Heat Treatment on Residual Stress of Power Spinning Connecting Rod Bushing

Li Zhong; Fan Wenxin; Feng Zaixin; Wang Xin

doi:10.15980/j.tzzz.2017.07.022

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Effect of Heat Treatment on Residual Stress of Power Spinning Connecting Rod Bushing
Vol. 37, Issue 7, Pages: 771-774(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.07.022

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[1]李众,樊文欣,冯再新,王欣.热处理对强力旋压连杆铜衬套残余应力的影响[J].特种铸造及有色合金,2017,37(07):771-774.

Li Zhong, Fan Wenxin, Feng Zaixin, et al. Effect of Heat Treatment on Residual Stress of Power Spinning Connecting Rod Bushing. [J]. Special Casting & Nonferrous Alloys 37(7):771-774(2017)
[1]李众,樊文欣,冯再新,王欣.热处理对强力旋压连杆铜衬套残余应力的影响[J].特种铸造及有色合金,2017,37(07):771-774. DOI： 10.15980/j.tzzz.2017.07.022.

Li Zhong, Fan Wenxin, Feng Zaixin, et al. Effect of Heat Treatment on Residual Stress of Power Spinning Connecting Rod Bushing. [J]. Special Casting & Nonferrous Alloys 37(7):771-774(2017) DOI： 10.15980/j.tzzz.2017.07.022.

摘要

采用单因素试验法

研究退火温度和保温时间对强力旋压连杆铜衬套残余应力的影响。结果表明

热处理可以有效地消除残余应力。在一定范围内

随着退火温度升高

工件表面和内部残余应力均呈现减小的趋势

且保温时间越长

残余应力的消除效果越好。

Abstract

In order to reduce effects of residual stress on the quality of the power spinning connecting rod bushing to improve its capability and service life

changes of residual stress of the power spinning connecting rod bushing before and after heat treatment and effects of annealing temperature and holding time on the residual stress of power spinning connecting rod bushing were analyzed by single factor test with the reduction rate of 35%

the feed ratio of 0.6mm·r-1 and the first round of thinning of 0.5 t.The results show that the heat treatment can eliminate effectively the residual stress.At a certain range

with the increase of annealing temperature

the surface and internal residual stress of workpiece is decreased.In addition

with increasing in the holding time

the residual stress is eliminated fully.