水平V型锥面砧改善轴类锻件异向性的研究  

Experiment of realizing uniform forging by horizontal v-shaped anvil

作　　者：张永军[1] 刘助柏[2] 韩静涛[1] 胡朝备[3] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]燕山大学机械工程学院,河北秦皇岛066004 [3]中国第一重型机械集团公司,黑龙江齐齐哈尔161042

出　　处：《锻压技术》2008年第4期9-13,共5页Forging & Stamping Technology

基　　金：国家自然科学基金资助重点项目(59235101)

摘　　要：水平V型锥面砧为横向性能有要求的轴类锻件提供了一种拔长锻造方法,通过改变工具形状、控制纤维流向的方法,来提高轴类锻件横向力学性能,改善异向性。本文进行了水平V型锥面砧与上平砧-下V砧拔长矩形截面坯料锻造的对比试验,通过对比两种锻造方法拔长锻件的纵向、横向力学性能,证实了水平V型锥面砧锻造法达到了普通锻造方法难以实现的锻造效果——轴类锻件力学性能的异向性明显改善,即水平V型锥面砧拔长的锻件同部位屈服强度、抗拉强度和延伸率的横向与纵向之比均在1.0附近变化。The forging method with horizontal V-shaped anvil can provide technical method for axial forging with transverse mechanical property requiments. Through changing anvil shape and tissue flow direction, the forging method increases transverse mechanical property and improves the anisotropy of mechanical properties of axial forgings. There was a group of contrasting experiments on forging rectangular billet by the forging method with horizontal V-shaped anvil and the forging method with top flat anvil-bottom V type anvil. Through contrasting axial and transverse mechan- ical properties, special forging effect that conventional forging methods can not lead to is realized. The anisotropy of mechanical properties of axial forgings is improved by the forging method with horizontal V-shaped anvil, and the ratio of axial mechanical properties to transverse mechanical properties of the same position in forgings is about 1.0.

关 键 词：水平V型锥面砧 轴类锻件 力学性能异向性 

分 类 号：TG316[金属学及工艺—金属压力加工]