The more the CNC tools used in the machining center, the better? In fact, the passivation of the tool is not what everyone literally understands, but a means of improving the lifespan of the tool.
Improve the quality of the tool thanks to smoothing, polishing, start -up and other processes. It is actually a normal process before covering the tool after polishing it.What is the passivation of the tool?By starting, flattening and polishing the tool, it can improve the quality of the tool and prolong the lifespan. After the fine grinding, the process before the coating is coated, its name is not currently unified in the country and abroad, and it is known“Passivation of the blades”, “Strengthening the blade”, “Honing of the blades”, “Preparation of the blade” or “ER (on -board)”, etc.
Why is the passivation of the tool carried out?There are microscopic notches of different degrees of tools after being sharpened by ordinary grinding wheels or diamond grinding wheels.(that is, tiny cracks and saws). During the cutting process, the micro-enclosure on the edge of the tool is very easy to develop, which accelerates the wear of tools and damage. Modern cutting and automation machines have highlighted higher requirements for the performance and stability of the tools.Passivation of the tool The purpose of passive technology of the edges is to resolve the defects of the microscopic space on the edge of the tool after sharpening, so that its on -board value is reduced or eliminated, achieving the purpose of sweetness, of sweetness and sustainability.The main effects of the tool passivation Rounded from the edges: Remove the on -board lands and obtain a precise and coherent rounding treatment.
The blades cause the wear of the tools and the surface of the transformed part will become rough.Polishing treatment of cutting grooves Uniformly ponder the grooves of the tool to improve the quality of the surface and the cutting performance.
The more smooth the surface of the groove, the better the suppression of the chip and the higher speed of speed can be made. At the same time, the quality of the surface is improvedAlso reduces the risk of biting the death of processed tools and materials. It can reduce the cutting force by 40%, which makes the cutter cut.Polishing of the coatings Remove the protruding droplets generated after the tool coating, improve the surface finish and increase the adsorption of lubrication oil.
The surface of the tool after the coating will produce tiny projection droplets, which will increase the roughness of the surface and make the tool subject to generate greater friction during the cutting process and will reduce the cutting speed. After passivation and polishing, the droplets are eliminated, leaving many small holes, which can adsorb more cutting fluid during treatment, which considerably reduces the heat generated during the cut and considerably improves the cutting speed.
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