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Tungsten carbide insert cutting edge passivation technology effectively improve cutting tool’s service life

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Update time : 2016-12-08 10:19:28
Carbide insert cutting edge passivation technology is not yet a universal attention, but it is a very important issue. The passivated carbide blade can effectively improve the cutting edge strength, service life and stability of the cutting process.

Grinding after the ordinary grinding wheel or diamond grinding wheel,carbide blade cutting edge with different levels of micro-gap,which in the cutting process is very easy to expand and speed up the carbide insert cutter wear and damage. Coated carbide blade must cutting edge passivation treatment before coating, in order to ensure the coating firmness and service life.

Carbide blade cutting edge passivation geometry, has a great impact on the life of the blade, there are two kinds of cutting edge blunt shape: one is the arc-shaped edge, the edge of the edge to form a symmetrical arc, 80 % Of the blade passivation treatment ,used for rough finishing; the other is the waterfall edge, the edge of the edge of the top and side to form a ratio of 2: 1 asymmetric arc, for harsh Of the impact of processing.

Carbide blade cutting edge passivation method is also evolving, the first use of hand-passivation, and then mechanization improve the efficiency and quality of passivation, with the continuous development of technology, a dedicated CNC cutting edge passivation machine appear.

Carbide blade passivation technology is an effective method to improve carbide insert uselife, both in economic and technical aspects are feasible and effective, and further promote the improve of carbide cutting tool processing level.