MATHEMATICAL MODEL AND THEORETICAL RESEARCH OF UNIT ROLLING PRESSURE DISTRIBUTION IN RECTANGULAR GROOVE DURING RHEO-ROLLING OF SEMISOLID ALLOY

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	MATHEMATICAL MODEL AND THEORETICAL RESEARCH OF UNIT ROLLING PRESSURE DISTRIBUTION IN RECTANGULAR GROOVE DURING RHEO-ROLLING OF SEMISOLID ALLOY
	Huang Hongqian; Cao Furong; Guan Renguo; Zhao Zhanyong; Xing Zhenhuan
刊名	ACTA METALLURGICA SINICA
	2011
卷号	47 期号:3 页码:291-297
关键词	STRIPS CASTER semisolid rheo-rolling groove rolling unit rolling pressure mathematical model AZ91D
ISSN号	0412-1961
其他题名	MATHEMATICAL MODEL AND THEORETICAL RESEARCH OF UNIT ROLLING PRESSURE DISTRIBUTION IN RECTANGULAR GROOVE DURING RHEO-ROLLING OF SEMISOLID ALLOY
英文摘要	Semisolid metal forming (SSF) is recognized as a new forming technology, which has been paid more and more attention by the researchers all over the world. The semisolid rolling process (rheo-rolling) combines the fabrication of semisolid slurry with continuously rolling as an important neoteric means to achieve near-shape forming. Compared with the traditional rolling process, this technology has the features of short machining process, low energy consumption, low cost equipment and high yield. However, one of the difficulties of using this technology to produce strip is that the solid and liquid phases prone to separation with each other during rheo-rolling deformation, especially when the semisolid slurry has a low solid fraction. The phenomenon causes macrosegregation and reduces the quality of the strip, as a result, limiting its industrial application. Using rectangular groove roller may solve this problem. In this paper, the mathematical model of unit rolling pressure distribution in rectangular groove during rheo-rolling was established. AZ91D magnesium alloy was taken as an example, and the effects of rolling strip thickness, width and roller radius on unit pressure were calculated and studied. The calculation results reveal that the smaller the thickness of rheo-rolled strip is, the narrower the width is, the bigger the peak unit rolling pressure is and the larger the average unit rolling pressure is However, when the strip thickness decreases, the peak unit rolling pressure moves towards the exit while when width decreases, the peak unit rolling pressure moves towards the entrance. The larger the roller radius is, the bigger the peak unit rolling pressure is, the larger the average unit rolling pressure is, and the peak value deviates towards the exit.
资助项目	[National Natural Science Foundation of China] ; [Key China University Basic Scientific Research Expenses]
语种	英语
CSCD记录号	CSCD:4171608
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/158095]
专题	金属研究所_中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Huang Hongqian,Cao Furong,Guan Renguo,et al. MATHEMATICAL MODEL AND THEORETICAL RESEARCH OF UNIT ROLLING PRESSURE DISTRIBUTION IN RECTANGULAR GROOVE DURING RHEO-ROLLING OF SEMISOLID ALLOY[J]. ACTA METALLURGICA SINICA,2011,47(3):291-297.
APA	Huang Hongqian,Cao Furong,Guan Renguo,Zhao Zhanyong,&Xing Zhenhuan.(2011).MATHEMATICAL MODEL AND THEORETICAL RESEARCH OF UNIT ROLLING PRESSURE DISTRIBUTION IN RECTANGULAR GROOVE DURING RHEO-ROLLING OF SEMISOLID ALLOY.ACTA METALLURGICA SINICA,47(3),291-297.
MLA	Huang Hongqian,et al."MATHEMATICAL MODEL AND THEORETICAL RESEARCH OF UNIT ROLLING PRESSURE DISTRIBUTION IN RECTANGULAR GROOVE DURING RHEO-ROLLING OF SEMISOLID ALLOY".ACTA METALLURGICA SINICA 47.3(2011):291-297.