金属粉末压制过程侧压应力直接测试系统的研究  

Investigation on side pressure's test mode of metal powder during compaction

作　　者：麦明仁 陈维平[2] 屈盛官[2] 江帆[2] 

机构地区：[1]广州奥的斯电梯有限公司,广州510640 [2]华南理工大学机械工程学院,广州510640

出　　处：《现代制造工程》2009年第2期15-18,共4页Modern Manufacturing Engineering

基　　金：国家自然科学基金资助项目(50574041);国家杰出青年科学基金项目(50325516)

摘　　要：研制了一种直接、连续和动态地测试粉末压制过程中力的变化的测试系统,能同时采集、记录和显示粉末压制过程中正压力、下冲作用力和侧压力的数据,并能较准确地捕捉力的变化,为更准确地分析金属粉末致密化机理研究提供参考数据。Analyze some side pressure＇s test mode at home and abroad, pointing out some problems of the test mode. A test system to measure the changes of various forces directly, continuously and dynamically during press process is developed, and it can collect, register and demonstrate the data of the upper compacting pressure, bottom force and side pressure simultaneously. The primary study shows that the side pressure has a hyperbolic characteristic with the die＇s height changing. With the increase of distance between test point and punch, the side pressure increases and reaches extremum. When the distance uheriorly increases,the side pressure decreases gradually.

关 键 词：粉末冶金 侧压应力 测试方法 测试装置 动态压制曲线 

分 类 号：TH16[机械工程—机械制造及自动化]