how do they make diamond saw blades

Diamond saw blades are manufactured through a series of complex processes that ensure their durability and cutting efficiency.

Here's a detailed overview of how diamond saw blades are made:

Manufacturing Process of Diamond Saw Blades

1. Raw Material Preparation

• Diamond Particles: Select appropriate diamond particles based on the hardness of the material to be cut. Both natural and synthetic diamonds are commonly used. The particles are screened to ensure uniform size, which guarantees consistent cutting performance.
• Bonding Materials: Metal powders such as iron, copper, cobalt, and nickel are used. Additives like carbides and oxides are added to enhance the bond's strength and wear resistance.

 

2. Mixing and Granulating

• Mixing: Diamond particles and metal powders are blended in specific proportions using a ball mill or mixer to ensure uniformity.
• Granulating: The mixed powders are granulated to form granules that facilitate subsequent pressing. Methods include spray granulation or mechanical granulation.

 

3. Pressing and Forming

• Mold Preparation: Molds are designed according to the required shape and size of the segments, typically made of high-strength steel. The mold surfaces must be clean to prevent impurities.
• Powder Pressing: The granulated powder is placed into the mold and pressed under pressure. Some segments are hot-pressed at high temperatures to increase density and strength.

Huice Company's fully automatic hot pressing sintering workshop.

 

 

4. Sintering Process

• Sintering Temperature Control: The formed segments are placed in a vacuum sintering furnace or hydrogen protection sintering furnace. A temperature curve is developed to ensure complete sintering of the diamonds and the bond.
• Sintering Procedure: Gases are removed during sintering to prevent porosity. The segments are soaked at the set temperature to ensure thorough bonding, creating a dense structure.

Manufacturing of diamond segment on saw blades through hot pressing sintering

 

5. Post-Processing

• Cutting and Trimming: The sintered segments are cut to the required size and shape. The segments are then ground and polished to achieve smooth surfaces and precise dimensions.
• Inspection and Sorting: Segments are visually inspected for defects and measured to ensure they meet size specifications. Hardness testing is also conducted.

 

6. Assembly and Packaging

• Assembly: Diamond segments are welded onto the saw blade core using methods like laser welding or high-frequency welding. The assembled blade is inspected to ensure segments are firmly attached.
• Packaging: Segments are packaged to prevent damage during transportation and labeled with product details for easy identification.

 

7. Quality Control and Certification

• Quality Control: Strict quality control is maintained at each production stage to ensure batch consistency. Comprehensive inspections are conducted before products leave the factory.
• Certification: Manufacturers obtain ISO and relevant industry certifications to ensure the production process meets international standards.

 

Different Production Technologies

1 Sintered Diamond Saw Blades:

• The production involves mixing diamond powder with metal powder, pressing the mixture into shape, and then sintering it at high temperatures.

2 Welded Diamond Saw Blades:

• Vacuum Brazed Diamond Saw Blades: Brazing is done in a vacuum to create smooth, strong joints.
• Laser Welded Diamond Saw Blades: The cutting edge is welded to the substrate using a high-temperature laser beam.
• High Frequency Welded Diamond Saw Blades: High-frequency induction is used to weld the blade and substrate together.

 

3 Electroplated Diamond Saw Blades:

• Diamond particles are attached to the substrate through electroplating, forming a thin cutting layer. This method is suitable for thinner blades and offers low cost and high production efficiency.

 

Quanzhou Huice New Material Co.,Ltd. Company has many years of experience in manufacturing diamond saw blades, producing various sintered and welded diamond saw blades, and cutting materials such as stone and concrete. Widely used in stone processing, construction engineering, hardware decoration and other fields, the products are currently sold to more than 50 countries and regions around the world, and provide OEM services for multiple e-commerce brands, sold through platforms such as Amazon.

 

Summary

The manufacturing of diamond saw blades involves multiple stages, from raw material preparation to final assembly and quality control. Each stage requires precise operations to ensure the quality and performance of the blades. Through scientific processes and rigorous quality control, the produced diamond blades exhibit excellent cutting performance and durability