Transactions of Materials and Heat Treatment

Title：Effect of process parameters of cross wedge rolling on the internal rarefaction

Authors： CHEN Su-ying~1 ZHANG Kang-sheng~1 YANG Cui-ping~1 HU Zheng-huan~1 GAO Xi-yin~2(1.School of Engineering University of Science &Technology Beijing Beijing 100083 China 2.School of Engineering Hebei Agriculture University Baoding Hebei 071001 China)

Unit：

KeyWords： cross wedge rolling process parameters internal rarefaction regression

ClassificationCode：TG335

year,vol(issue):pagenumber：2006,31(4):38-40

Abstract：

The regression equation of internal rarefaction grades is acquired by processing the experimental data in the experiment of porous void by USTB,based on the mathematical theory of statistics.This equation fits obviously good by verification.By the extensive analysis of the regression equation,the mutual effect exits obviously between stretching angle and area reduction.The internal rarefaction appears while the small stretching angle and major area reduction are used in cross wedge rolling,or vice versa. On the other hand,the porous void is liable to emerge while the forming angle is small.This study provides a guideline for the rarefaction formation mechanism.

Funds：

国家自然科学基金项目(50435010)

Reference：

[1]胡正寰,张康生,王宝雨,等.楔横轧零件成形技术与模拟仿真[M].北京:冶金工业出版社,2004.
[2]胡正寰,许协和,沙德元.斜轧与楔横轧-原理、工艺及设备[M].北京:冶金工业出版社,1985.
[3]张承鉴,等.楔横轧译文集[C].长春:吉林工业大学锻造工艺研究所,1982.
[4]曹芳.交变次数对楔横轧心部缺陷的影响[D].北京:北京科技大学,2005.
[5]茆诗松,丁元,周纪芗,等.回归分析及其实验设计[M].上海:华东师范大学出版社,1981.

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