Transactions of Materials and Heat Treatment

Title：Creation of limit design and manufacturing technique for close-die forging hydraulic press of 800 MN

Authors： Zeng Xiangdong Yang Guchuan Zhang Hua Yu Jiang Hu Mengjun Chen Wen

Unit： China National Erzhong Group Co.

KeyWords： close-die forging press limit design limit manufacture

ClassificationCode：TH163

year,vol(issue):pagenumber：2014,39(2):96-101

Abstract：

The limit design and manufacturing technique of important parts with large sizes in the 800 MN close-die forging hydraulic press was described briefly, especially the limit design technology of the “C” shaped plate in frame, the main cylinder and the counter beam of moving crosshead,and the limit manufacture of casting, forging and welding. The maximum stress at the fillet radius of “C” shaped plate was reduced from 456 to 237.1 MPa through the optimization design. The maximum principal stress and the equivalent stress of liquid inlet hole in the main working cylinder were reduced to 192 and 217 MPa respectively by a local optimization design, and the stresses were decreased by more than 40%. Through joint technical research of the national science and technology major special project group, the key technical problems of limit design and manufacture about important parts with large sizes were successfully resolved.

Funds：

国家科技重大专项“800 MN大型模锻液压机设计制造及应用关键技术研究与开发”（2009ZX04005-011）

曾祥东（1959-），男，硕士，高级工程师

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