BULLETIN of the

POLISH ACADEMY of SCIENCES

TECHNICAL SCIENCES

BULLETIN of the POLISH ACADEMY of SCIENCES: TECHNICAL SCIENCES
Volume 53, Issue 4, December 2005

Micro and Nano -scale mechanics

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Aims&Scope, Subscription Editors Authors' guide Vol 53-4 mirror: http://fluid.ippt.gov.pl/~bulletin/

  
pp 425 - 431
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Effect of nitride nano-scale multilayer coatings on functional properties of composite ceramic cutting inserts

K. Czechowski, I. Pofelska-Filip, B. Krolicka, P. Szlosek, B. Smuk, J. Wszolek, A. Kurleto, J. Kasina
A short literature survey which justifies coating of ceramic cutting inserts is presented. The results reported are on selected nitride
coatings, in particular nanoscale multilayer, with layers of type Ti-Zr-N, TiN, ZrN and (TiAl)N, deposited by the arc PVD method on oxidecarbide ceramic cutting inserts of type TACN and TW2 produced at the Institute of Advanced Manufacturing Technology. Measurements and quality assessments were made, including of thickness of the coatings and of their constituent micro and nanolayers, microhardness of the coating and of the substrate, surface roughness of the inserts and of the cylindrical workpieces turned with these tools. Lifetimes of the coated and uncoated inserts were compared in turning an alloy tool steel. A significant increase in lifetime of the coated TW2 cutting tools was shown.
 
Keywords:

PVD coating, nanoscale multilayer, cutting insert, ceramics, tool life

 
 
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12 January 2006, site prepared  by KZ