Cold-pressed diamond tools are much cheaper than hot-pressed diamond tools. They are still widely used in many applications. The cold press production method has some advantages:

1) The forming of the tools does not need heating equipment, and the operation is easy.

2) The mold need not to be heat-resistant, and has a longer service life.

3) The forming production efficiency is high. The tools can be sintered in bulk.

4) The density of the formed blanks is lower than the one got via the hot press method, and their porosity is higher. This can help the cooling when these tools are used in grinding or cutting.

5) The formed waste products can be recycled timely.

The cold press method also has some disadvantages:

1) After sintering, the size of the pressed blanks changes considerably, especially for those complex-shape tools.

2) The bonding strength between the pressed blank and the tool’s body is low, and issues may arise from these bonding positions.

3) The pressure in the cold press is high. This may lead to the crush of the diamonds, and then influence the performance of the tools. There is a raw blanks’ movement procedure in the cold press method, and the raw blanks may be bumped and broken.

4) The requirement to the forming performance of the raw materials is high. The molds need to be made of high-strength alloy steel.

5) The requirement to the workers’ blank-pressing skills is rather high.