摘要
介绍了用于加工槽的各种连续局部塑性成形方法,包括螺纹轧制、横轧与斜轧、分劈、花键轴滚轧、劈分轧制、花键轴/齿轮开模挤压、花键套挤压、槽型换向器整体冷锻、外翅片管挤压—犁削、内/外螺纹管拉拔等。在总结归纳各种方法变形特征的基础上,根据模具工作部分与坯料之间的运动关系,提出槽的连续局部塑性成形可划分为滚轧与劈挤两种基本变形方式。初步给出了劈挤定义,并对几种常见结构槽进行了物理模拟实验验证。初步介绍了劈挤所用模具、变形特征、应用范围。
Various successive partial plastic forming methods for processing groove, including thread rolling, cross rolling and skew rolling, splitting, rolling of spline shaft, split rolling, open-die extrusion of spline shaft/gear, extrusion of internal screwed tooth socket parts with large helical pitch, integral cold forging for slot commutator, extrusion-ploughing for outside fin tube, drawing of tube with spiral internal/external ribs etc. have been introduced briefly. On the basis that characteristics of every forming methods have been summarized and concluded, according to the moving relationship between working parts of die and block, it is proposed the successive partial plastic forming methods for groove have been divided to two kinds of basic deformation styles, rolling and splitting extrusion. New conception of splitting extrusion has been put out primarily, physic simulation experiment for several grooves with general construction formed by splitting extrusion have been finished. Hereby, the structure of splitting extrusion die, the characteristics of this deformation and its serving range have been introduced primarily .
出处
《塑性工程学报》
EI
CAS
CSCD
北大核心
2006年第4期75-78,85,共5页
Journal of Plasticity Engineering
关键词
连续局部塑性成形
劈挤
特征
槽
successive partial plastic forming
splitting extrusion
characteristics
groove
作者简介
张如华 E-mail：zhangruhual@tom.com ：张如华，男，1958年生，南昌大学，副教授／硕导，在职博士研究生，主要研究方向为金属塑性成形工艺与模具技术
