锻压技术

800 MN大型模锻液压机极限设计制造技术创新

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

作者：曾祥东杨固川张华于江胡孟君陈文

关键词：模锻液压机极限设计极限制造

分类号：TH163

出版年,卷(期):页码：2014,39(2):96-101

摘要：

简述800 MN大型模锻液压机上巨大尺寸、重要零件的极限设计制造,特别是机架C形板、主工作缸、活动横梁中梁等的极限设计技术以及在铸造、锻造、焊接方面的极限制造技术。设计过程中对C形板进行优化设计，使过渡圆角处的最大应力由原来的456 MPa降为237.1 MPa；对主工作缸的局部进行设计优化，使进液孔内壁的最大主应力和等效应力分别降低到192和217 MPa，应力值降低幅度超过40%。经过国家科技重大专项课题组联合技术攻关，成功解决了大尺寸重要零件极限设计制造关键技术的难题。

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.

基金项目：

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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