Glory Diamond Tools

CBN is a new type of superhard material with ultra-high pressure and high temperature technology after synthetic diamond using . CBN and its products are mainly suitable for precision grinding of tool steel, alloy steel, heat-resistant steel, stainless steel and other materials. Although the cost is slightly higher than that of general abrasive grinding wheel products, thermal stability and chemical inertness are superior to general abrasive wheels, diamond wheels, etc. Vitrified bond CBN grinding wheels are common used wheels during grinding process. Grinding performance of grinding wheels is different with diamond, CBN, silicon carbide and corundum abrasive. Diamond is the hardest abrasive, but it’s not ideal used for steel material with large grinding toughness due to poor thermal stability. Silicon carbide wears rapidly due to its low hardness and chemical activity to iron group metals. Corundum is a conventional abrasive used for grinding steel material, but the hardness is rel...

High-speed and ultra-high-speed grinding technology research should be conducted with super-hard material CBN as a tool, modern ultra-high-speed cutting technology and modern high-flexibility and high-automation equipment to accelerate the practical process. The core key technologies for achieving high-speed and ultra-high-speed grinding to be gradually improved include high-speed and ultra-high-speed grinding mechanism research, high-power and high-speed motion unit equipment manufacturing technology, high-flexible and high-automation system, grinding center, research and development about super-hard abrasive micro-powder high-speed grinding wheel preparation technology and super-hard abrasive wheel dressing technology. Vitrified bond CBN grinding wheel is one of the most common wheels. The main research work about high-speed and ultra-high-speed grinding mechanism is to develop high-speed, ultra-high-speed grinding computer animation, vision and predictive simulation software ...

Improving the quality of processing and the efficiency of grinding processing has always been an important goal in the field of grinding. The high-speed, ultra-high-speed precision grinding process is an advanced, high-quality and low-intensity developed manufacturing process technology in recent years. High-speed, ultra-high-speed grinding technology means that high-precision, high-automatic, high-flexibility manufacturing equipment can be reliably achieved with the super-hard abrasive grinding wheels to greatly improve the grinding speed to improve the material removal rate, processing precision and processing quality. CBN is cubic boron nitride with a microhardness of 800-900 MPa, which is slightly lower than diamond. However, its heat resistance (1400℃) is almost double that of diamond (800℃). Due to the poor thermal stability of diamond grinding tools, it should be used with speed limit, and the thermal stability of CBN abrasive grains is go...

The excellent grinding performance of vitrified bond CBN grinding wheel is related to many grinding factors, such as grinding wheel characteristic parameters, grinding parameters, grinding fluid and the dressing method of grinding wheel. Among them, the grinding wheel dressing method plays a key role. If the grinding wheel is not well dressed, the ground metal will be bonded to the surface of the grinding wheel, resulting in large grinding force, high grinding temperature and increasing wear of the grinding wheel. The vitrified CBN grinding wheels should be trimmed at high speed with cup shaped diamond wheels. Generally, single-grain diamond or diamond pen trimming is used, and silicon carbide grinding wheel is also used to trim vitrified bond CBN grinding wheel. Although it is easier to implement a  ceramic CBN grinding wheel  with single diamond, there are many problems. Due to the high hardness of the grinding wheel itself, the single diamond is easily passivated compa...