电渣变截面细长管的精锻工艺研究  

Research on Precision Forging Process of Electroslag Variable Cross Section Slender Tube

作　　者：宋博宇[1] 杨泽华 赵波波 郭元 Song Boyu;Yang Zehua;Zhao Bobo;Guo Yuan(Material Engineering Department, Baotou Vocational & Technical College;Inner Mongolia North Heavy Industry Group Co., Ltd., Baotou, Inner Mongolia 014030)

机构地区：[1]包头职业技术学院材料工程系 [2]内蒙古北方重业集团有限公司,内蒙古包头014030

出　　处：《包头职业技术学院学报》2020年第2期9-13,共5页Journal of Baotou Vocational & Technical College

摘　　要：文章针对自由锻方式制造电渣变截面细长管存在的尺寸精度低、材料利用率不高等问题,采用具有4个锤头的1600t精锻机同时对棒料进行快速锤击、径向旋转及高速锻造;根据电渣变截面细长管的形状、规格、尺寸及技术要求,设计精锻工艺;并对锻造后的电渣变截面细长管的力学性能及组织性能进行分析。结果表明,采用该工艺制造,加工效率高、锻件尺寸精度较高、加工余量节约了50%左右,能够满足力学性能要求,且晶粒度、组织性能均优于自由锻变截面细长管,符合批量生产要求。In order to overcome the problems of low dimensional accuracy and low material utilization caused by free forging slender tubes,this paper uses a 1600 ton precision forging machine to forge refining variable section slender tubes.According to its shape and specifications,precision forging is designed.The analysis of mechanical properties and microstructure properties of the electroslag variable cross section slender tube shows the process can meet the need of mechanical properties,and the grain size and the microstructure properties are better than the free forging slender tube,which can be gone into mess production.

关 键 词：电渣 变截面细长管 精锻 工艺研究 

分 类 号：TG3[金属学及工艺—金属压力加工]