What Are the Commonly Used Welding Methods of PCD Cutting Tools?

Everyone knows the welding methods of PCD cutting tools, what are the commonly used ones? In addition to mechanical clamping and bonding, the connection method between the composite sheet and the cutter body is mostly limited to the cemented carbide substrate by brazing. According to different needs, the welding methods of PCD cutters are also divided into several types. Maybe many people don't know, let's popularize it for everyone.

Welding method of PCD cutting tool:

1. Laser welding of PCD cutting tools is an efficient and precise method using a high-energy-density laser beam as a heat source. PCD cutting tool laser welding has the advantages of high energy density, focusability, deep penetration, high efficiency, and strong adaptability. The forming knife can pass through it, and the process belongs to conduction welding, that is, the laser irradiates the surface of the workpiece, and the heat generated is transferred to the interior through thermal conduction.

2. Vacuum diffusion welding of PCD cutting tools refers to the process of making the surfaces of parts cleaned in vacuum close to each other at a higher temperature and higher pressure, and the atoms diffuse each other within a relatively small distance to connect the two parts together. It is generally carried out at the temperature of 60% to 80% of the melting point temperature of the welded material. Therefore, this method is more effective for materials with great differences in expansion coefficient.

3. The high-frequency induction heating technology of PCD cutting tools is a heating technology developed at the beginning of the twentieth century. It has been rapidly popularized due to its fast heating speed, high internal heating and thermal efficiency of the material, uniform and selective heating, good product quality, almost no environmental pollution, and easy production automation.

Today, PCD cutting tools have been widely used in traditional fields such as machinery, metallurgy, geology, petroleum, coal, stone, and construction, and  high-tech fields such as electronic information, aerospace, national defense and military industry, as well as emerging industries such as automobiles and household appliances. At the same time, we also hope that PCD cutting tools can be used more widely.

E-Grind Abrasives specializes in diamond and cubic boron nitride products with over 50 years of experience. We offer a full range of grit products for sawing, grinding, grinding and polishing for the stone, glass, tungsten carbide, ceramic, magnetic and other industries.

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