The Application of Diamond in Automotive Manufacturing and Processing
(1) Cutting Tool Materials
In the manufacturing process of automotive components, such as engine blocks, crankshafts, and transmission gears, which require complex shapes and high precision, diamond tools demonstrate outstanding performance. Diamond tools are made by sintering polycrystalline diamond tips and hard alloy substrates at high temperatures and pressures. The ultra-hard properties of diamond tools enable them to maintain sharp edges under high-speed cutting conditions, effectively reducing cutting forces and tool wear during the machining process. For example, in the milling of aluminium alloy cylinder blocks, diamond tools can achieve high-speed, high-precision cutting, significantly improving machining efficiency and part surface quality. Compared to traditional carbide tools, diamond tools can achieve cutting speeds several times higher and reduce surface roughness to lower levels, thereby reducing subsequent grinding and polishing processes and lowering production costs.
(2) Grinding Tools
Grinding of automotive components is another area where diamond tools excel. For parts made from high-hardness materials, such as ceramic brake pads and carbide valve seats, diamond grinding wheels provide efficient and precise grinding results. Diamond grinding wheels feature high-hardness abrasive particles with excellent wear resistance, maintaining stable grinding performance over extended periods to ensure dimensional accuracy and surface finish of parts. Additionally, diamond grinding wheels exhibit good self-sharpening properties: as abrasive particles become dull during grinding, they automatically shed to expose new sharp particles, ensuring continuous high-efficiency grinding performance.
