金属管料下料技术概述  

Overview of metal pipe blanking technology

作　　者：赵升吨[1] 景飞[1] 赵仁峰[1] 李雪[1] 陈超[1] 

机构地区：[1]西安交通大学机械工程学院模具所,陕西西安710049

出　　处：《锻压装备与制造技术》2015年第2期11-14,共4页China Metalforming Equipment & Manufacturing Technology

基　　金：国家自然科学基金资助项目(51175413)

摘　　要：本文分析总结了金属管料的传统下料方法和新型下料方法的原理及其各自优缺点与适用范围。传统管料下料方法主要指切割下料和剪切下料,其中切割下料包括锯切、切管机切割、旋转楔入法切割和激光切割等;剪切下料包括无芯棒剪切法、带芯棒剪切法和带芯棒圆周剪切法。而新型管料下料方法主要指金属厚壁管的低应力疲劳下料法。文章分析指出采用传统的切割法进行管料切割下料会产生金属损耗且生产效率低,不适合大批量生产;采用剪切法下料几乎没有金属损耗,但是所下管料断口处由于受压力的作用易产生变形,断面形状精度较差且所需下料载荷也较大;管料的低应力疲劳下料法所需下料载荷低、无金属损耗且断面质量高,是一种经济环保高效的管料下料方式。The principle of traditional and new blanking methods for metal pipe has been analyzed in the text, as well as the advantages and disadvantages of those methods. The traditional pipe blanking methods mainly refer to cutting and shearing. The cutting methods include sawing, cutting by tube cutting machine, rotating wedge cutting and laser cutting, while the shearing methods include non-mandrel shearing, mandrel shearing and the mandrel shearing along the circumferential direction. The new pipe blanking methods mainly refer to the low stress fatigue blanking of metal pipe with thick wall. It is pointed out that the traditional cutting method of pipe blanking is not suitable for big batch production due to it＇s low production efficiency and the loss of metal. The traditional shearing method will not produce metal loss, but the pipe is easy deformed due to the stress, and precision of the cross-section shape is also not good. The low stress fatigue blanking method is an efficiency and environmental protection method for metal pipe blanking because it requires a low forming farce without metal loss and can assure a high surface quality.

关 键 词：管料下料 切割下料 剪切下料 低应力疲劳下料 综述 

分 类 号：TG316[金属学及工艺—金属压力加工]