Effect of Roller Brush Passivation Equipment on Consistency of Cutting Edge of Cemented Carbide Blades
In this paper,the problems of uneven arc radius and size in polishing and passivating the cutting edge of the cemented carbide blade by commonly used roller brush passivation equipment were analyzed.Based on the working principle of roller brush passivation equipment,this paper analyzed the reasons for the inconsistent arc radius and size in passivating the cutting edge of cemented carbide blades from two aspects of brush motion and brush wear.Through the mathematical modeling of the equipment movement mode,it is found that when the product enters the brush and leaves the brush,the number of product rotations is not an integer,which will result in a longer processing time for a certain corner or a certain cutting edge of the product.At the same time,the uncertainty of brush wear will cause a difference in the actual processing time,which causes the inconsistency of the arc radius and size of the cutting edge.This is the inevitable defect of the equipment design.