汽车钣金工在进行车身整形工作时,经常碰到大面积铁板因刚度不足而出现一按就瘪、抬手就恢复原状的故障。由于铁板在凹凸变形过程中会发出“咕嗒” Car sheet metal workers in the body during plastic surgery, often encounter a large area of ​​iron due to lack of rigidity and a press on the deflated, raising his hand to restore the status quo anomalies. As the iron plate in the deformation process will issue a “click”