caa a22 4500 475798953 CHVBK 20180406123732.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1007/s001700050162 doi (NATIONALLICENCE)springer-10.1007/s001700050162 Improvement of Tool Life and Exit Burr using Variable Feeds when Drilling Stainless Steel with Coated Drills [Elektronische Daten] [T.R. Lin, R.-F. Shyu] Variable feed machining is a signifant method for improving the cutting tool life and exit burr height for hard and difficult to machine materials. Four coated drills were tested in the present study, namely, TiN, TiCN, CrN, and TiALN. The results indicate that the amplitude of variation of feed, a = 0.6, is optimum for maximum tool life or minimum burr height. TiN-coated drills were superior to CrN-coated or TiALN-coated drills when drilling stainless steel. The chisel wear and the outer corner wear were the dominant mechanisms of the drill wear.: Springer-Verlag London Limited, 2000 Keywords:Coated drills nationallicence Drill wear nationallicence Variable feed machining nationallicence Lin T.R. Department of Mechanical Manufacturing Engineering, National Huwei Institute of Technology, Hu-Wei, Taiwan, TW aut Shyu R.-F Department of Mechanical Manufacturing Engineering, National Huwei Institute of Technology, Hu-Wei, Taiwan, TW aut https://doi.org/10.1007/s001700050162 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s001700050162 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lin T.R. Department of Mechanical Manufacturing Engineering, National Huwei Institute of Technology, Hu-Wei, Taiwan, TW aut NATIONALLICENCE 700 1- Shyu R.-F Department of Mechanical Manufacturing Engineering, National Huwei Institute of Technology, Hu-Wei, Taiwan, TW aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer