Method of fabricating a part by forging and controlled polishing

摘要

A method of fabricating a part by forging, the method including: measuring geometrical characteristics of the forged part; comparing a measured shape with a theoretical shape that is to be obtained for the part; deducing therefrom zones that are not in compliance with the theoretical shape and also thicknesses of material that need to be removed from the zones that are not in compliance; and polishing the zones of the forged part that are not in compliance to remove the deduced thicknesses of material by using a controlled abrasive band. The control of the abrasive band takes account of at least one parameter representative of wear of the abrasive band during polishing of zones that are not in compliance.

主权项

1. A method of fabricating a part by forging, the method comprising:
making a semi-finished part by forging; measuring geometrical characteristics of the semi-finished part; comparing a measured shape of the semi-finished part with a theoretical shape that is to be obtained for the part, and deducing therefrom zones that are not in compliance with the theoretical shape and also thicknesses of material that need to be removed from the zones that are not in compliance; and polishing the zones of the semi-finished part that are not in compliance so as to remove the deduced thicknesses of material by using a controlled abrasive band; wherein control of the abrasive band takes account of at least one parameter representative of wear of the abrasive band during polishing of zones that are not in compliance, which parameter is selected from the following parameters: a distance traveled by the abrasive band while polishing preceding zones; mean speed of advance of the part relative to the abrasive band while polishing the preceding zones; mean travel speed of the abrasive band while polishing the preceding zones; and duration of polishing the preceding zones.