Forming method of shaft parts with flanges

Abstract

The invention relates to a forming method for a shaft component with a flange. The forming method comprises a first step of selecting a rod-shaped blank, wherein the diameter of the rod-shaped blank is larger than that of the rod section of the shaft component and is smaller than that of the flange of the shaft component; and a second step including the following forms: a first form comprising the steps of extruding one end of the rod-shaped blank through an extrusion mold so as to form the rod section of the shaft component from the rod-shaped blank, then upsetting the other end of the rod-shaped blank through an upsetting mold so as to form the flange of the shaft component from the rod-shaped blank; and a second form comprising the steps of upsetting one end of the rod-shaped blank through the upsetting mold so as to form the flange of the shaft component from the rod-shaped blank, and then extruding the other end of the rod-shaped blank through the extrusion mold so as to form the rod section of the shaft component from the rod-shaped blank. The forming method provided by the invention can reduce a forming force required during a forming process of the shaft component with the flange.

Description

technical field [0001] The invention relates to the technical field of metal extrusion molding, in particular to a molding method of shaft parts with flanges. Background technique [0002] Shaft parts with flanges such as figure 1 As shown: includes flange 51 and rod part 50 integrally arranged with the flange, in the figure D represents the diameter of the flange, h represents the height of the flange, d represents the diameter of the rod part, and H represents the height of the shaft parts. When forming shaft parts with flanges, there are generally two methods used: first, extrusion molding, that is, to extrude a billet with a diameter equal to the flange diameter of the desired part on a press to extrude Forming the rod, in the extrusion process, the larger the extrusion area, the greater the extrusion force required. Therefore, when the flange diameter of the part is greatly different from the diameter of the rod, one-time extrusion molding is used, so The required ext...

AI Technical Summary

Problems solved by technology

When forming shaft parts with flanges, there are generally two methods used: first, extrusion molding, that is, to extrude a billet with a diameter equal to the flange diameter of the desired part on a press to extrude Forming the rod, in the extrusion process, the larger the extrusion area, the greater the extrusion force required. Therefore, when the flange diameter of the part is greatly different from the diameter of the rod, one-time extrusion molding is used, so The required extrusion force is relatively large, the tonnage of the forming equipment used is large, and the input cost of the equipment is high; second, upsetting forming, that is, upsetting the blank with a diameter equal to the diameter of the rod part of the required part on the press, The flange is formed by upsetting. Because the diameter of the flange is large, the upsetting force required is relatively large, which also requires a large-tonnage press, which increases the input cost of the equipment.

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