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Diamond turning of intermetallic, single-crystalline NiAl

 
: Brinksmeier, E.; Rentsch, R.; Zhang, C.; Gumbsch, P.

Chevrier, F. ; European Society for Precision Engineering and Nanotechnology -EUSPEN-:
5th international conference of the European Society for Precision Engineering and Nanotechnology 2005. Vol.1 : May 8th - May 11th 2005, Montpellier, France
Montpellier, 2005
ISBN: 92-9900-350-5
S.277-280
European Society for Precision Engineering and Nanotechnology (International Conference) <5, 2005, Montpellier>
Englisch
Konferenzbeitrag
Fraunhofer IWM ()
diamond cutting; NiAl

Abstract
In the paper, diamond cutting properties of NiAl are reported. Specific cutting force, force ratio, and specific cutting energy are found as a function of cutting speed, depth of cut, feed rate, as well as crystal orientation. Surface inspects have disclosed a semi-brittle character of this alloy. Smooth mirror-like surfaces have only been achieved by using sharp diamond tools with a nose radius a s small as 50 microns. Employing tools with a negative rake angle of -45° can im prove the surface roughness and quality significantly, in particular at the depth of cut of 2 microns. Adversely, a straight edge tool with a rake angle of 0 degree can incur intensively cracked surfaces.

: http://publica.fraunhofer.de/dokumente/N-68335.html