High-Efficiency and Wear-Resistant HFR410 Coating: an Innovative Solution to PCB Processing Challenges

Diamond is renowned for its high hardness and outstanding wear resistance. However, when ordinary cemented carbide tools are applied in the processing of graphite materials, dental dentures, high-speed processing of printed circuit boards (PCBS), new aluminum materials for automotive or aerospace parts, and composite materials, they often encounter problems such as easy wear, easy breakage, easy adhesion to the workpiece material, low efficiency and high consumption. HFR410 coating is an efficient solution for the above application fields. It is not only applied in a wide range of different working conditions and high-tech materials, but also provides personalized solutions for different applications, enhancing the application experience of customers.

PCB board processing

In recent years, with the demand for mobile phones, laptops, high-definition displays and other digital devices increasing year by year, the PCB board industry has developed rapidly. In the process of manufacturing PCB boards, a very important step is to drill through holes on the PCB board that connect two or more layers of copper foil.

However, due to the strong adhesion of the copper layer in the PCB board and the strong wear characteristics of the resin glass fiber, it is very easy for the drilling tools to wear out and fail rapidly during the processing. It is prone to defects such as delamination, burrs and splitting, and has extremely strong abrasiveness. The tool wear is quite severe, resulting in the melting of low-melting-point components in the PCB material and the delamination between layers of the composite material, making it difficult to guarantee the processing quality.

HFR410 coating - The beginning of efficient processing

Due to the difficulty in processing PCB boards, the low tool life and frequent tool changes have become one of the main obstacles hindering the efficient processing of PCB boards. HFR410 combines the high hardness, low friction coefficient and super wear resistance of diamond, enabling the cutting heat to be dissipated more quickly and ensuring the integrity of the cutting edge for a long time. It has become one of the solutions to the current predicament in the PCB board processing industry.

Based on the Huasheng DA600 platform and using the HFCVD deposition method, precise switching from micron-sized crystals to nanocrystals can be achieved.

Under the milling test of aluminum substrates in PCBS, HFR410 demonstrated excellent wear resistance, with no burrs on the board and guaranteed processing quality. Compared with its peers, it has a 100% increase in service life.

In addition, choosing the appropriate grade of hard alloy substrate as the carrier for the "diamond coating" is also a decisive factor. According to the grade of hard alloy and coating material, select the correct pretreatment to enable the coating to achieve extremely excellent adhesion.

The HFR410 process optimizes coating solutions, enabling users to achieve the best results when processing various materials such as CFRP/GFRP, zirconia, graphite, high-silicon aluminum alloys, and other non-ferrous metals.