There have 2 types of coating in Carbide insert ,PVD and CVD coating .
PVD coating carbide insert mainly used for machining stainless steel and High-temperature alloy,CVD coating carbide insert mainly used for machining DCMT Insert all kinds of steel and cast iron . if you know the difference of this 2 coatings ? here ,let me share more details about it .
PVD and CVD are coating techniques. PVD stands for physical vapour deposition , CVD stands for chemical vapour deposition. The key difference between PVD and CVD is that the coating material in PVD is in solid form , in CVD it is in gaseous form. another important difference we can say that in PVD technique atoms are moving and depositing on the substrate while in CVD technique the gaseous molecules will react with the substrate.
Besides, the deposition temperatures between PVD and CVD also different , for PVD, it deposits at a relatively low temperature (around 250°C~450°C) whereas, for CVD, it deposits at relatively high temperatures in the range of 450°C to 1050°C.
We,Zhuzhou Apple carbide tools co.,ltd is a professional manufacture for carbide cutting tools ,carbide insert is our hot selling products ,Any interesting ,welcome to contact us for more details ,thanks!
WNMG Insert
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In most cases, there never will be one cutting tool insert solution that works for everyone. There are too many variables with respect to different machines, various cooling ways, cutting parameters, machining environments, and work pieces material.
For example, we had a customer needed inserts for milling carbide bar, in most cases the customers are using CBN inserts for milling carbide. And he also tried CBN inserts to do the job, but the results not met his expectation. Under this situation our engineer suggested to use PCD inserts. He has taken our suggestion, and PCD inserts works very well for him. As we all know PCD inserts are usually use on aluminum. As a conclusion, Cemented Carbide Inserts if we wanted a most satisfied cutting tool the testing must needed in different chip breakers, grades and materials.
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Carbide tools have been the most widely used tools in the machine industry over the past few decades. But have you ever wondered What Carbide is and why have Carbide Tools become so popular
Carbide is a Chemical Compound composed of Carbon along with a less electronegative APKT Insert element than Carbon itself. Carbides can be broadly classified as:
Metal Carbides: Carbon is compounded with a metal that is less electronegative (such as tungsten, titanium, cobalt, tantalum, or vanadium).
Non-Metal Carbides: Carbon compounded with less electronegative non-metals like Boron, Calcium, or Silicon
Due to their extreme hardness & resistance to high temperatures, Metal Carbides are used in cutting, drilling, grinding, abrasives, and polishing tools.
Tungsten carbide as a tool material has been increasingly used for cutting tools, wear-resistant tools, impact-resistant tools, and other products with a special purpose.
History
Dr. Samuel Leslie Hoyt, a scientist at General Electric Company’s Lamp Department, was the first scientist to investigate the use of Machining Inserts tungsten carbide as a cutting tool material. Later, Dr. Samuel Leslie Hoyt went on to develop Carboloy, an alloy of tungsten, carbide, and cobalt.
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