Super-Hard DLC Coatings as an Alternative to Polycrystalline Diamond for Cutting Tools: Predictive Analysis of Aluminium Alloy Surface Quality

The use of lightweight materials, such as ultra-high-strength aluminium alloys, is in high demand the automotive and aerospace industries where weight savings are critical. tool materials used for high-speed cutting these alloys subjected to severe conditions that promote premature failure tools. application polycrystalline diamond (PCD) coatings provides tools with increased mechanical thermal fatigue resistance improved tribological performance. Despite good properties, their cost remains a major limitation this sector. Super-hard Diamond-Like Carbon (DLC) offer technologically economically feasible alternative PCD-coated machining non-ferrous materials. In paper, performance coated un-coated hard metal inserts turning 7075 alloy has been explored. surface quality machined parts, wear vibrations generated during un-coated, PCD super-hard thin DLC on tungsten carbide were compared. results obtained demonstrate potentially interesting component finish key factor.