Abstract
TiAlN films were deposited on a high-speed steel (HSS) tool by a physical vapor deposition technique. This study describes the deposition, characterization and coating phase composition of the composite coating. Dry turning tests were carried out on martensitic stainless steel AISI410 with three series of cutting speed: 30, 120 and 180 m/min, while the depth of cut and feed rate were kept constant at 1 mm and 0.15 mm/rev, respectively. The machined work piece surface roughness, adhesive strength and cutting force of the coated cutting tool were studied. The wear rate and worn surface of the cutting tools were also studied with scanning electron microscopy. The test results show that the cutting performance of the HSS cutting tool was improved with the covering of the TiAlN coating with at least two times increase of cutting life.
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