Study on the formation and prevention mechanism of internal voids in cross wedge rolling

doi:10.1007/s00170-021-07367-x

	Study on the formation and prevention mechanism of internal voids in cross wedge rolling
	Jia, Zhi 1,2; Wei, Baolin 1; Sun, Xuan 1
刊名	INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
	2021-08
卷号	115 期号:11-12 页码:3579-3587
关键词	Cross wedge rolling (CWR) Internal voids Numerical simulation Die paraments Connecting rod
ISSN号	0268-3768
DOI	10.1007/s00170-021-07367-x
英文摘要	A three-dimensional numerical simulation model of cross wedge rolling (CWR) was developed to analyze the influence law of die parameters on internal voids during CWR using a rigid-plastic finite element method (FEM), where particular attention has been given to the internal void generation mechanism during CWR of shaft parts from the analyses of morphology, stress, and strain. The main reason for the internal voids during CWR is the extremely uneven deformation of the core and surface of the rolled product. By adjusting the key die parameters in CWR, the influence of die process parameters on internal voids in CWR was studied. As a result, the larger the forming and widening angles, the smaller the diameter of the rolled workpiece after rolling, and when the distribution coefficient of area reduction is about 1, the more difficult it is for loose defects to occur. According to the simulation results, a new CWR die structure was proposed and rolling experiments were performed. No looseness was found in the center, which proved that optimizing the die was feasible.
WOS研究方向	Automation & Control Systems ; Engineering
语种	英语
出版者	SPRINGER LONDON LTD
WOS记录号	WOS:000659025000007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148661]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou, Gansu, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, 287 Langongping Rd, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Jia, Zhi,Wei, Baolin,Sun, Xuan. Study on the formation and prevention mechanism of internal voids in cross wedge rolling[J]. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,2021,115(11-12):3579-3587.
APA	Jia, Zhi,Wei, Baolin,&Sun, Xuan.(2021).Study on the formation and prevention mechanism of internal voids in cross wedge rolling.INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY,115(11-12),3579-3587.
MLA	Jia, Zhi,et al."Study on the formation and prevention mechanism of internal voids in cross wedge rolling".INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY 115.11-12(2021):3579-3587.