Residual stress removal method, workpiece machining method, composite shot peening and preparation method

• Main Authors: ZENG WEILUN, QIN SHIHUI, WANG ZHONGPEI, WU CHUHUI
• Format: Patent
• Language: Chinese; English
• Published: 03.03.2023
• Subjects: APPARATUS THEREFOR; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FERROUS OR NON-FERROUS ALLOYS; 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; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to the technical field of surface treatment, and particularly discloses a residual stress removing method which comprises the steps that a workpiece with residual stress to be removed is subjected to shot blasting treatment, a shot blasting medium of the shot blasting treatment comprises composite shot blasting, and the composite shot blasting impacts the workpiece so as to remove the residual stress on the surface of the workpiece; the composite shot peening comprises a shot peening base body and an organic polymer coating formed on the surface of the shot peening base body. The invention further discloses a composite shot peening which comprises a shot peening base body and an organic polymer coating formed on the surface of the shot peening base body. The invention further discloses a preparation method of the composite peening shot and a workpiece machining method. According to the residual stress removing method, the workpiece machining method, the composite shot peening and the pre