用振动消除残余应力,提高抗变形能力,使金属件尺寸得到稳定的方法,已为国内外工业界所重视。据国外资料介绍,美国、英国、法国、日本及苏联等国,对振动时效已作了大量研究,并先后在工业部门应用,效果显著。近年来,国内对振动时效的研究也取得了可喜的进展。 With vibration to eliminate residual stress and improve the ability of anti-deformation, the size of the metal parts to be stable, the method has been valued by the industry at home and abroad. According to foreign information, the United States, Britain, France, Japan and the Soviet Union and other countries have done a lot of research on vibration aging, and it has been applied in the industrial sector with remarkable results. In recent years, the domestic research on vibration aging has also made gratifying progress.