In metal cutting different wear processes exist depending on the application. These wear mechanisms include abrasive wear on the flank and clearance face of the cutting tool, crater wear on the rake face, caused by chemical interaction between the cut chip and the tool surface, built-up edge on the cutting edge and depth-of-cut notching caused by abrasion by the outer edge of the chip.
In the areas of machining and tooling PVD coatings are widely used to increase the life and productivity of production cutting tools saving companies production cost but the use of PVD coatings on cutting tools saves money in many ways.
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