Method for designing size of rolled blank of an asymmetric double-step ring piece

• Main Authors: HAN XUEBO, QI HUIPING
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PHYSICS; PUNCHING METAL; TRANSPORTING

The invention relates to a method for designing the size of a rolled blank of an asymmetric double-step ring piece. The blank size design method mainly solves the technical problems of unreasonable metal material distribution and high blank making difficulty in an existing blank size design method of the special-shaped ring piece ring rolling forming process. The technical scheme adopted by the invention is as follows according to the design method, the asymmetric double-step ring piece is a ring piece with different outer diameters of an upper step and a lower step and different wall thicknesses of the upper step and the lower step; and the design steps comprise 1) setting a half of the height of a ring piece groove as an interface, 2) setting the blank as an annular blank with an outer step, and setting the height of a blank interface to be equal to that of an interface of the ring piece, 3) calculating the volume Vu of the upper step part, the volume Vd of the lower step part and the total volume V0 of the