金属的超声波成形加工 国外已将超声波技术应用于金属冷挤压成形上。在冷深冲压、压平、卷边和拉丝等成形加工中,用超声波对被加工金属进行辐射,可使加工能量减少50%以上,使不易成形的工件变得容易加工。比如将一个铜杯压薄,使其长度增加一倍,只要采用强度为70瓦/厘米~2的宏声振(超声波发生装置),则 Ultrasonic metal forming abroad has been applied to metal ultrasonic technology, cold extrusion. In the cold deep drawing, flattening, curling and drawing and other forming process, the metal to be processed by ultrasonic radiation, the processing energy can be reduced by 50% or more, so that easy to form the workpiece becomes easy to process. For example, a copper cup is thinned so as to double its length. As long as a macro-sound intensity (ultrasonic wave generator) having an intensity of 70 W / cm 2 is used