General knowledge of diamond cutter

Before user inside the selection and use of diamond coated cutting tools, you will need to understand the subsequent several points regarding the diamond-coated tools common sense:
(1) Difference between CVD diamond-coated with amorphous diamond coating?
Amorphous diamond (generally known as diamond-like carbon--photograph) coating can be a carbon film deposition using the PVD process. It has both section of SP3 diamond, and part of SP2 carbon; a higher film hardness, but under the hardness of diamond-like carbon film; its thickness is thinner than we usually deposited diamond film. When processing graphite, amorphous diamond coating cutlery life usually are not 2-3 x the coated cemented carbide tool. By contrast, CVD diamond can be a pure diamond coatings deposition while using the CVD process, is the tool lifetime of cemented carbide cutting tools in machining graphite 12-20, so that you can reduce tool change times, increase the reliability, consistency and accuracy of processing.
(2) No machining of hardened steel with diamond tool?
Diamonds are formed from carbon atoms. Some material when heated, will aspirate carbon atoms in diamond and form carbides inside workpiece. Iron is just one of such materials. Whenever using diamond tool machining of iron materials, friction heat generated will spread for the carbon atoms of iron in diamond, which caused early failure as a result of chemical wear of diamond coating.
(3) heavy grinding and (or) heavy coating of diamond film coated tools quality challenging maintain because of the tool surface coating for pure diamond, diamond grinding wheels for cutter Regrinding needs a number of years. Furthermore, make it possible for the development of diamond cutting tools. Chemical properties in the preparation process will change the tool surface, due to the coating requires very precise control on the chemical characteristics, effect of cutter coated again can hardly be guaranteed.
(4) the life span of diamond coated cutting tools vary?
As with every other tool, diamond coated cutting tool life expectancy varies, dependant upon cutting materials, number of cutting speed and feed rate, and also the geometry of the workpiece. In the main, graphite machining carbide tools coated with diamond coated cutting tool life's not 10-20, in some instances even longer. In this way, you can do nearly every task processing by having a tool, no tool wear and tool change, avoid processing interrupt and recalibrate, rendering it possible to offer the unattended processing. Inside the processing of composite materials, may also get yourself a longer tool life.
It can be reported that in processing high density fiberglass, when machining composite materials like graphite and Gl0-FR4, of diamond coated cutting tools which aren't coated cemented carbide tool life can be as high as 70 times.
(5) coated with diamond peeling on the coating can prevent peeling is really a significant issue of diamond coated cutting tools, or a faqs (particularly machining materials such as carbon fibre), will result in tool own life is hard to forecast. Late 90 'of the past century, surface chemistry characteristics were identified as is a factor influencing the performance of diamond-like carbon coating adhesion. By choosing the good compatibility of pretreatment of cemented carbide chemical characteristics, the employment of appropriate technology and sedimentary respond to reasonable conditions, it is possible to reduce or remove the diamond coating peeling, stability of steady wear pattern. Within microscope observation of normal depreciation of diamond coated cutting tools come in, diamond was worn before cemented carbide substrate by stability, without edge collapse or slack.