Forging technology of high-precision forklift bearing ring

[0011] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0012] Embodiments of the invention include:

[0013] A forging process of high-precision forklift bearing rings, including: blanking - heating - forging - flattening - reaming - shot peening, the temperature rise during the heating is 28-30 ° C / min, the forging is at 1150 The temperature is kept at ~1170°C for 10-12 minutes, the flattening amount during flattening is 18%-20% of the width of the ferrule, preferably 18%, and the hole-expanding ratio during the expansion is 1.3-1.5, preferably is 1.4.

[0014] The blanking is thermal shear blanking, the temperature of the thermal shear blanking is 650~680°C, which can improve the shearing quality, avoid deformation and burrs of the cut surface,