Machining method for cold forging forming of starlike sleeve

• Main Authors: LI JIE, LU CHUNMIN, HE YANLIANG
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2024
• Subjects: FORGE FURNACES; FORGING; HAMMERING; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; TRANSPORTING

The invention relates to a machining method for cold forging forming of a starlike sleeve, which is used for cold forging forming of the starlike sleeve through a cold forging die, eight roller way grooves distributed around the center are formed in the peripheral wall of the starlike sleeve, and each roller way groove is in an arc-shaped concave shape. The two ends of the roller way groove are bent towards the center of the starlike sleeve in an arc mode, and the cold forging die comprises an upper die device, a lower die device and a die core device installed on the lower die device. Each section of the extrusion die core is provided with the forming curved surface boss corresponding to one roller way groove, and the forming curved surface boss forms the integrated roller way groove in the surface of the blank piece, so that secondary machining of the roller way groove is avoided, the forming precision is high, and the surface quality is good. 本发明是关于一种星形套冷锻成型的加工方法，星形套冷锻成型的加工方法，用于通过冷锻模具冷锻加工成型星形套，所述星形套的外周壁设置环