本文介绍了与电火花加工工件表面完整性改善相关的超声波抛光参数的研究结果。超声波抛光是超声波加工（USM）的一种新形式，已成功地应用于有限的应用领域，并显示出作为一种灵活、可控的精加工工艺的巨大潜力。研究发现，如果表面不进行后处理，电火花加工会留下表面残余应力，从而降低高周疲劳强度。因此，工具钢制成的电火花加工组件有特殊的精加工需求。

THIS PAPER PRESENTS THE RESULTS OF AN INVESTIGATION OF THE ULTRASONIC POLISHING PARAMETERS RELATED TO SURFACE INTEGRITY IMPROVEMENT FOR EDM WORKPIECES. ULTRASONIC POLISHING, A NEW VARIANT OF ULTRASONIC MACHINING (USM), HAS BEEN SUCCESSFULLY UTILIZED IN LIMITED APPLICATIONS AND SHOWS GREAT PROMISE AS A FLEXIBLE, CONTROLLABLE FINISHING PROCESS. RESEARCH HAS FOUND EDM LEAVES SURFACE RESIDUAL STRESSES THAT CAN REDUCE HIGH CYCLE FATIGUE STRENGTH IF THE SURFACE IS NOT POST TREATED. THUS, THERE ARE PARTICULAR FINISHING NEEDS FOR EDM COMPONENTS MADE FROM TOOL STEEL.