锤上两种宽板类锻件的锻造工艺分析  

Analysis of free forging technology for two kinds of wide board forgings

作　　者：张宏[1] 

机构地区：[1]中国北车集团齐齐哈尔铁路车辆(集团)有限责任公司,黑龙江齐齐哈尔161002

出　　处：《锻压技术》2007年第2期134-136,共3页Forging & Stamping Technology

摘　　要：介绍两种自由锻工艺:改制大剪刃,由一件改为两件,采用修磨、均分料、局部预热进行气割然后两火锻造;锻制垫铁时采用反变形工艺,预先锻出与成形方向相反的变形量,自然成形后达到合格尺寸,并节约了大量的原材料。Two kinds of free forging technologies were introduced. The one was to reform the big scissor blade into two. The forged pieces went through the processes of abrading, averagely distributing weight and warming-up locally , gas cutting dividing and two stages forging. Secondly, the forging mat iron employed the reverse deformation technology. A certain deformation was preformed, which was in the reverse direction with that of forming. After natural figuration, it got qualified size and saved a large quantity of raw material.

关 键 词：大剪刃 垫铁 反变形 

分 类 号：TG316[金属学及工艺—金属压力加工]