Ultrasonic rolling surface residual stress regulation and control method by prefabricating surface machining textures

• Main Authors: WANG XIBIN, HU YUTONG, TAN HAO, DU YUCHAO, SHEN WENHUA, ZHOU TIANFENG, FENG BOYA, LUAN XIAOSHENG, LI ZEKUN, QIU TIANYANG, LIANG ZHIQIANG
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2022
• Subjects: CHEMISTRY; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

The invention discloses a method for regulating and controlling residual stress on the surface of a metal material through ultrasonic rolling after prefabricating surface textures, and belongs to the technical field of metal material surface strengthening. Based on different prefabricated textures and different ultrasonic rolling parameters, different residual stress amplitudes and influence layer depths can be obtained, so that the amplitude and influence layer depth of the residual compressive stress on the surface of the metal material can be regulated and controlled. 本发明公开一种通过预制表面纹理后进行超声滚压的金属材料表面残余应力调控方法，属于金属材料表面强化技术领域。基于预制纹理的不同和超声滚压参数的不同，可以获得不同的残余应力的幅值和影响层深度，从而实现对金属材料表面残余压应力幅值和影响层深度的调控。