Influence analysis of shot peening on hot forging die

doi:10.1007/s00170-016-9499-y

	Influence analysis of shot peening on hot forging die
	Jia, Zhi 1; Ji, Jinjin 2
刊名	INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
	2017-05
卷号	90 期号:5-8 页码:1779-1787
关键词	Shot peening Hot forging die Residual compressive stress Friction and wear properties
ISSN号	0268-3768
DOI	10.1007/s00170-016-9499-y
英文摘要	As a common surface mechanical processing method, shot peening got very extensive application because of its low cost and simple operation. This paper gives a comprehensive study on the effects of shot peening on hot forging die based on experimental study and production validation. The effects of shot peening parameters on the distribution of residual stress on surface strengthening layer are studied. Microhardness has an obvious improvement on die surface part after shot peening. By comparing the residual stress distributions on surface strengthening layer, it is found that for 5CrNiMo hot forging die, proper shot peening parameters are cast steel shots with diameter 0.4-0.6 mm, impact velocity 50-75 mm, and coverage rate 100-150 %. Compared with crankshaft forging die without shot peening, microhardness of shot peening die was increased to HV402 on surface part. Under lubricated condition, the abrasion resistance of sample is well improved; friction coefficient finally is close to 0.093 mu and the average friction coefficient is 0.181 mu. Finally, in order to verify experiment results, five sets of module are put into production. Service life of strengthen dies is longer than original dies. The original mold completely was scraped when produced more than 8000 pieces, and shot peening die was scrapped over 9000 pieces.
资助项目	National Natural Science Foundation of China[51665032] ; Natural Science Foundation of Gansu Province[145RJZA144]
WOS研究方向	Automation & Control Systems ; Engineering
语种	英语
出版者	SPRINGER LONDON LTD
WOS记录号	WOS:000400608200045
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33283]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Jia, Zhi
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China 2.Lanzhou Inst Technol, Sch Mat Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Jia, Zhi,Ji, Jinjin. Influence analysis of shot peening on hot forging die[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2017,90(5-8):1779-1787.
APA	Jia, Zhi,&Ji, Jinjin.(2017).Influence analysis of shot peening on hot forging die.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,90(5-8),1779-1787.
MLA	Jia, Zhi,et al."Influence analysis of shot peening on hot forging die".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 90.5-8(2017):1779-1787.