The production process of carbide-coated inserts usually includes the following steps:
Preparation of cemented carbide matrix: First, prepare the cemented carbide matrix, usually using powder metallurgy process, mixing tungsten carbide powder and metallic cobalt powder in a certain proportion, and forming a hard alloy with the required shape and size through processes such as pressing and sintering. alloy matrix.
Prepare coating materials: According to the required coating type, prepare the corresponding coating materials. Common coating materials include titanium nitride, titanium carbide, aluminum nitride, silicon nitride, etc. Coating materials are usually prepared using methods such as Physical Vapor Deposition (PVD) or Chemical Vapor Deposition (CVD).
Coating process: The carbide substrate is placed in the coating equipment, heated to the appropriate temperature, and the steam or gas of the coating material is introduced. Under conditions such as high temperature and vacuum, the coating material will be deposited on the surface of the cemented carbide substrate to form a thin film coating. The thickness of the coating can be adjusted by controlling time and temperature.
Post-treatment and heat treatment: After completing the coating, post-treatment and heat treatment are usually required to improve the adhesion and stability of the coating. Post-processing may include polishing, cleaning, annealing and other steps, while heat treatment can make the coating achieve higher density and hardness.
Tool machining and sharpening: Finally, the coated carbide substrate is machined into the tool shape and sharpened to obtain the desired cutting geometry and dimensions. Special grinding wheels or tools are required during the sharpening process to maintain the integrity and performance of the coating.
The entire production process requires strict process control and quality inspection to ensure the uniformity, adhesion and quality of the coating. The production of carbide-coated inserts requires specialized equipment and technology to meet the needs of different industries and applications.
More details of tungsten carbide product, please visit website: http://tungsten-carbide.com.cn/
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