ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Austenitic stainless steel is a kind of difficult-to-cut material widely utilized in variousindustry fields. But cutting tools is the uppermost obstacle in the application of high efficient andprecise machining of austenitic stainless steel. Drill is the one of the most complicated universalcutting tools, whose geometry structure influences greatly on drilling performance. So thedevelopment of special drills is imperative for high-efficient drilling. This paper presented theoptimal geometrical characteristics of the special drills, with138° point angle and 38° helix angle,for high-efficient drilling austenitic stainless steel. The drilling performance has been evaluatedcompletely and comprehensively through the experiments including measuring cutting deformationcoefficient, thrust force, torque, cutting temperature near the cutting point, cutting tool life, drillwear mechanism and so on. The special drill indicated appreciated cutting performance duringdrilling austenitic stainless steel with high efficiency. Compared to the commercial availablestandard drill with 118° point angle and 32° helix angle, the cutting tool life of the special drill was1.6 times of the standard drill and the special drill yielded good performance of chip evacuation,good wear resistance and great drilling quality
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/51/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.315-316.195.pdf
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