How much do you know about CVD coated diamond end mills?

Background about CVD diamond end mills’ usage

With rapid development of aerospace, the advent of carbon brazed composites (CFRP) has revolutionized aircraft manufacturing. Meantime, the diamond end mills provides an effective solution for this material.

Besides, after a series of machining experiments, it was found that cutting with diamond-coated tools can greatly improve the surface quality of CFRP, promote the use of turning instead of grinding, and improve production efficiency. It is an ideal tool.

In the first place, let me have a basic introduction of diamond tools.

As known, a diamond tool is a metal cutting tool with diamond grains fixed on the functional parts of the tool via a bonding material. Since diamond is a superhard material, diamond tools have many advantages.

Advantages of diamond tools

Firstly, it has high working efficiency, Low grinding force. Less heat generates in the grinding process. This can decrease or avoid burns and cracks on the surface of the workpiece, and decrease the equipment’s wear and energy consumption.

Secondly, it has high wear resistance. Diamond tools’ change in dimension is small. This can lead to good grinding quality and high grinding precision.

Thirdly, long lifespan, long dressing period. This can greatly increase the work efficiency, and improve the workers’ labor environment and decrease the product’s labor intensity.

As such diamond tools have so many advantages. And there is many factories are using it to process hard materials, Our provide various CVD diamond end mills, they are widely used in many fields: aviation, aerospace, automobile, electronics, graphite processing and other fields. for CVD diamond end mills.

Cutting parameters for CVD coated end mills.

Last but not least, to help you use such Diamond coating milling tools well, there is following tips for your reference.

  • Pre-milling a small section at the end of the processing exit can avoid the edge of the workpiece from chipping when cutting to the exit.
  • Adopting climb milling, the cutting direction of the edge is opposite to the feeding direction.
  • The depth of cut cannot exceed 1/3 of the diameter of the milling cutter.
  • Replace the expired tool in time.
  • Increase the linear speed of the tool and reduce the feed rate.
  • Try to use high-quality fine-grained graphite material.

And for cutting parameters, you can refer to below table.

Tool diameter(mm)Vc(m/min)Feed per toothRPM
Roughing Machining
Tool diameter(mm)Vc(m/min)Feed per toothRPM
Finishing Machining

All in all, hope through this article, you can have a basic knowledge about CVD diamond-coated milling cutters. If any doubt, you are warmly welcomed to contact Melody.

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