In order to improve the performance of the engine, the piston material is changed from low silicon aluminum alloy to medium silicon aluminum alloy, and even high silicon aluminum alloy.And the PCD tools with excellent characteristics, it widely used in processing aluminum alloy, especially for high silicon aluminum alloy.
The hardness and wear resistance of high silicon aluminum alloy are higher than other aluminum alloys. When normal cutting tools alternately cut soft aluminum and hard silicon particles, the tool is also easy to produce debris, so the processing accuracy and surface roughness will deteriorate.
In order to avoid chip deposition and hardening, the blade must be sharp and the blade surface must be smooth, and the PCD cutter meets these requirements.