机械振动消除焊接件的残余应力

• 作 者: 沈正明
• 机 构: 原五三二厂机加科,
• 出 处: 航空工艺技术
• 发表日期: 1980年01期
• 关键词: 残余应力 机械振动 消除残余应力 焊接件 消除应力 焊接应力 激振器 焊件 残余应力分布 交变载荷

一、概述机械振动消除残余应力,具有投资少、设备简单、周期短等优点。用机械振动来代替焖火消除焊件或铸件的残余应力,国外已普遍用于生产,证明振动消除残余应力的效果可靠。目前在学术上对振动消除应力还有不同见解和争论,但一致认为重复交变载荷的作用是可以降低残余应力的。

First, an overview of mechanical vibration to eliminate residual stress, with less investment, equipment is simple, short cycle and other advantages. The use of mechanical vibration instead of stewing fire to eliminate the residual stress of weldments or castings, foreign countries have been widely used in production, proof of residual vibration effect of vibration to eliminate Reliable. At present, there are still different opinions and debates about the stress-strain relief of vibration. However, it is agreed that the effect of repeated alternating loads is to reduce the residual stress.