Sintered diamond blades are produced through a mature powder metallurgy process. Manufacturers blend fine diamond grains with metallic bonding powders, fill the uniform mixture into customized molds, and conduct hot pressing treatment at temperatures ranging from 700°C to 900°C. Under high heat and pressure, the metal powders solidify and integrate into firm diamond segments. After forming, these cutting segments are fixed onto the steel blade body via low-temperature brazing or mechanical clamping methods.

Core Features of Sintered Diamond Blades

- Connection method: Diamond segments are fixed on the steel core through brazing or mechanical assembly

- Production cost: Economical and cost-effective, thanks to streamlined procedures and low energy consumption

- Segment size: Standard segment height ranges from 7mm to 8mm, restricted by traditional brazing techniques

- Working speed: Limited maximum rotation speed due to the relatively weaker bonding stability

Ideal Usage Scenarios

Sintered diamond blades are perfectly suited for moderate-speed dry cutting tasks. They work well for light and medium construction operations, daily DIY projects, and occasional professional cutting work. This type of blade is mainly designed for small-diameter tools within 9 inches.

Main Limitations

The bonded segments may loosen or fall off under heavy cutting pressure and excessive heat accumulation. The brazed joints are vulnerable to water erosion, making the blades unsuitable for wet cutting work. Meanwhile, their lower RPM tolerance and short segment height result in relatively shorter overall service life.

Manufacturing and Performance of Laser Welded Diamond Blades

Laser welding technology adopts a high-energy laser beam to melt the base of diamond segments and the surface of the steel core simultaneously. This professional metallurgical fusion process fuses the two parts into an integral whole, forming an ultra-solid connecting joint that boasts higher strength than the blade’s base material.

Core Features of Laser Welded Diamond Blades

- Connection method: Integrated metallurgical welding, achieving one-piece structure of segment and steel core

- Production cost: Relatively higher, requiring professional laser welding devices and sophisticated technical operation

- Segment size: Supports taller segments of 10mm to 12mm or above, supported by high-strength welding structure

- Working speed: Allows high rotating speed, as the welded joint far exceeds the strength standard of steel core

Ideal Usage Scenarios

Laser welded diamond blades are dedicated to heavy-duty professional construction work. They adapt to wet cutting processes, high-speed cutting operations, and large-diameter blade applications from 12 inches to 20 inches and above. They are the preferred choice for high-standard engineering projects where segment falling is strictly prohibited.

Key Advantages

The integrated welding structure completely avoids segment shedding during normal service life. The welding joint is not affected by cooling water, ensuring safe and stable wet cutting performance. Higher allowable RPM greatly improves cutting efficiency, while taller diamond segments extend the blade’s working cycle. All products fully comply with the EN13236 safety standard, providing reliable safety guarantees for industrial cutting work.