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- W4248574003 abstract "The small and medium scale industry in drilling and cutting sector widely use cutting tools made by High Speed Steel (HSS). The improvement of lifetime of HSS drill bits helps these establishments to achieve product economy. The improvement in the performance and service lifetime of high-speed steel (HSS) twisted drill bits are studied by depositing Titanium dioxide (TiO2) nano-coatings using reactive dc magnetron sputtering Method. Pure titanium (99.99%) metal is used as target material for making nano-coatings in oxygen atmosphere. X-ray diffraction studies indicated change of phase of annealed samples compared to as-deposited coatings. X-ray reflection (XRR) measurements estimated nanocoating thickness on the HSS drill bit around 100nm. The lifetime of TiO2 nano-coated, and cryogenically treated nano-coated tools significantly improved compared to uncoated (bare) HSS drill bit. The tool life has been enhanced by about 16% when TiO2 nano-coatings were made on HSS drill bits. Further lifetime enhancement of 10% was observed when the nanocoated drill bit is given cryogenic treatment in liquid nitrogen. SEM images and EDS profiles are reported. The minimum surface roughness measured as 7.296x10-6m for TiO2 coated and cryo-treated HSS drill tool." @default.
- W4248574003 created "2022-05-12" @default.
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- W4248574003 date "2019-08-30" @default.
- W4248574003 modified "2023-10-18" @default.
- W4248574003 title "Lifetime and Performance Improvement of HSS Drill Bit by Titania (TiO2) Nano-Coatings and Cryogenic Treatment" @default.
- W4248574003 doi "https://doi.org/10.35940/ijeat.f8100.088619" @default.
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