Closed Die Forging Technology of Automobile Hub Flange

carhubAs an important part of the car, the flange plays a very important role in the safety of the car, and has strict requirements on its material and mechanical properties. Because the hub flange has a long and thin foot, the disc diameter is larger than the foot, and the center The hole is small, so the forging difficulty is high, the forming accuracy is poor, and the allowance tolerance is large.

The existing wheel hub flange forging process in my country generally adopts the open die forging process, which has low production efficiency, long production process, low production accuracy, and waste of materials. The increase of edge cutting process will further have a negative impact on the clamping of subsequent finishing, so we should pay attention to this point.

Bar shearing: Calculate the billet weight required by the product through computer software, select the bar with appropriate specifications, and use professional shearing bar shearing equipment, billet heating: use a medium frequency induction heating furnace to heat the billet, and the sorting device automatically eliminates the excess range of blanks.

Upsetting: Put the heated billet into the lower mold, start the mechanical press, and upset the upper part of the billet, that is, the finished plate. Due to the characteristics of the mechanical press, each billet can be upset to a consistent level. Forming: put a The forming blank is put into the two lower molds, and the mechanical press starts forming.