(1) cutting tool field DLC film used as a tool (such as drills, milling cutters, carbide inserts, etc.) coating, can improve tool life and tool edge hardness, reduce sharpening time, but also has a very low friction factor, low adhesion and excellent wear resistance. Therefore, DLC film tools show special performance far more than other hard coated tools, mainly used in graphite cutting, a variety of non-ferrous metal (such as aluminum alloy, copper alloy, etc.) cutting, non-metallic hard materials (such as acrylic, fiberglass, PCB materials) cutting and so on.
Aluminum alloy cutting process, aluminum alloy material will quickly adhere to the cutting surface of the tool and lead to the machining surface processing quality degradation.DLC film can reduce the adhesion, so in the aluminum alloy processing has been better used.
Hardness is high, the melting point is lower than the metal materials such as acrylic, glass fiber, PCB materials and other non-metallic materials, if TiN, TiAIN and other coatings of the tool machining, there will be due to the temperature rise to make the cutting material melt or half-melt and lead to chip removal phenomenon ultimately lead to the failure of the tool. Deposited DLC film cutting tool can be a good solution to the above problems, especially the high hardness (3500HV) DLC film has a very low friction factor (about 0.08), largely reduces the tool in the cutting process due to the friction generated by the heat enhancement of the chip removal performance, so that the tool’s average service life increased by 3 to 4 times. This characteristic is especially prominent in tools with a diameter of less than 10mm, so DLC film is widely used in the field of micro-drilling, micro-cutter.
–This article is released by vacuum coating machine manufacturer Guangdong Zhenhua
Post time: Oct-13-2023