gear blank

The CAD two-dimensional drawing of the upper and lower molds is shown in Figure 1. 1.Mold geometric model establishment According

1、 Establishment of geometric model Using pro/e4.0, the geometric model of extrusion process is established, including the geometric model of

Due to the problems in the free forging process of the cutting block, other forming methods are considered to replace

The forging process of driving spiral bevel gear blank also includes four steps: heating, drawing, die forging and trimming. That

1、 Metal flow law in extrusion process The metal velocity vector diagram of each stage of extrusion forming process is

The metal velocity vector diagram of each stage in the forging process of spiral bevel gear blank is shown in

The metal velocity vector diagram of each stage in the upsetting process of spiral bevel gear blank is shown in

The spiral bevel gear blank is set as a plastic body. Determination of initial forging temperature of spiral bevel gear

The service life of die and the selection of screw press are closely related to the forming load. Therefore, it

Using Pro / E4 0 establish the geometric model of extrusion process, including the geometric model of upper and lower

(1)Metal flow law in extrusion process The metal velocity vector diagram of each stage in the extrusion process of spiral

Due to the problems in the free forging process of cutting board, other forming methods are considered to replace the

The iterative step load curve of the general forming process of spiral bevel gear blank is shown in the figure,

Extrusion is a plastic forming processing method that applies pressure to the spiral bevel gear blank in the die cavity

The pre punching process is to prepare for the punching process and reserve the punching skin thickness for the punching

It can be seen from Fig. 1 that the stress distribution near the bevel of the extrusion die is also

(1) Metal flow field during hot extrusion Figure a ~ C in Figure 1 shows the metal flow state at