When processing hardened steel,
CBN inserts can replace grinding with turning and grinding with milling.
The processing efficiency is increased by 4 to 10 times. In addition, it is more convenient to replace inserts, the processing efficiency is higher than traditional carbide-coated tools, and the service life can be increased several to dozens of times.
PCBN tool processing does not require cooling, which is more environmentally friendly and can reduce costs.
What is tool coating?
Tool coating: Forming a certain film on the surface of the tool through chemical or physical methods, so that the cutting tool can obtain excellent comprehensive cutting performance, thereby meeting the requirements of high-speed cutting processing.
Add coating to CBN inserts:
1. Improve wear resistance;
2. Improve antioxidant properties;
3. Reduce friction;
4. Improve metal fatigue resistance;
5. Increase thermal shock resistance.
Features of coated tools
1. Good mechanical and cutting performance
Coated tools combine the excellent properties of the base material and the coating material. They not only maintain the good toughness and high strength of the base material but also have high hardness, high wear resistance, and low friction coefficient of the coating.
Therefore, the cutting speed of coated tools can be increased by 2 to 5 times compared with uncoated tools. Obvious economic benefits can be obtained by using coated tools.
2. Strong versatility
Coated tools have wide versatility and their processing range is significantly expanded. One coated tool can replace several non-coated tools.
Classification of coated tools
According to different coating methods, coated tools can be divided into chemical vapor deposition (CVD) and physical vapor deposition (PVD).
According to the different substrate materials of coated tools, coated tools can be divided into carbide-coated tools, high-speed steel-coated tools, and coated tools on ceramics and superhard materials (diamond and cubic boron nitride).
Among the customers Moresuperhard has received in the past, customers often asked us to learn about CBN tool coating. So is it necessarily better for CBN tools to be coated?
Coated CBN Inserts VS CBN Inserts
Coated CBN inserts are harder, more wear-resistant, and impact-resistant than uncoated CBN inserts, effectively improving cutting performance.
The purpose of coating CBN cutting tools is to extend the service life of the insert and improve production efficiency. It is mainly used in quenched steel processing to help manufacturers in quenched steel, auto parts, and other industries reduce the cost of single-piece processing.
Moresuperhard currently supports a variety of coatings for you to choose from: different colors correspond to different properties and different working conditions.
However, it is not necessarily a good choice to choose coated CBN inserts.
Here are some suggestions for situations where coated CBN inserts may not be necessary:
1. When uncoated CBN inserts can already meet customer needs, there is no need to choose coated CBN inserts, because coated CBN inserts are usually more expensive than uncoated CBN inserts.
2. If there is no mass production or no need to improve production efficiency, there is no need to choose coated CBN inserts. If there is only one batch of goods that requires the use of CBN tools and no further processing, choosing uncoated CBN tools will meet the needs.
3. If there are no usage problems with uncoated CBN inserts, such as severe wear or chipping, there is no need to choose coated CBN inserts. Conversely, if you need to improve tool performance, consider using coatings.
Coated tools are already an indispensable part of modern cutting processing. Moresuperhard will continue to optimize the production process and continue to provide you with the most suitable tool.
---EDITOR: Erin Zhang/Cynthia Lee
---POST: Cynthia Lee
