论文部分内容阅读
近些年来,国外大量使用“振动时效”处理方法来消除钢铁、铝合金等构件由于铸造、轧制和焊接等过程造成的残余应力,效果明显,费时短,成本低。并使构件在加工后的精度大大的提高。据有关资料介绍,用这种方法只需十至五十分即可使构件内的残余应力消除70～80％,同时也按同样的百分数消除了由于残余应力而造成的构件的翘曲。美国应力消除工程公司进行过五千多次试验均获成功。目前这种方法已在国外大量采用,并相应的出现了一些有关的设备专利权。
In recent years, extensive use of foreign “vibration aging” approach to eliminate steel, aluminum and other components due to casting, rolling and welding process caused by residual stress, the effect is obvious, time-consuming and low cost. And the precision of the components in the processing greatly improved. According to the relevant information, using this method only need 10 to 50 minutes to eliminate 70-80% of the residual stress in the component, meanwhile, to eliminate the warpage of the component due to the residual stress by the same percentage. American Stress Relief Engineering conducted more than 5,000 tests. At present, this method has been widely used in foreign countries, and some related equipment patents have appeared correspondingly.