A COMPARISON BETWEEN CVD AND PVD COATED CEMENTED CARBIDE CUTTING TOOLS

1989 ◽  
Vol 50 (C5) ◽  
pp. C5-803-C5-810 ◽  
Author(s):  
R. PORAT ◽  
Y. CASSUTO
Keyword(s):  
Cutting Tools ◽  
Cemented Carbide ◽  
Coated Cemented Carbide

Influence of Cup Wheel Grinding and Etching Pretreatment on Residual Stress and Surface Topography for Coated Cemented Carbide Tools

2012 ◽  
Vol 497 ◽  
pp. 10-14
Author(s):  
Tie Jun Song ◽  
Zhi Xiong Zhou ◽  
Wei Li ◽  
Ai Min Tang
Keyword(s):  
Residual Stress ◽  
Surface Topography ◽  
Cutting Tools ◽  
Wheel Speed ◽  
Cemented Carbide ◽  
Machining Process ◽  
Grinding Wheel ◽  
Near Surface ◽  
Cup Wheel ◽  
Coated Cemented Carbide

Cup wheel grinding and etching pretreatment are widely used in complex coated cemented carbide cutting tools machining process. The two processes determine different surface properties due to various mechanical and thermal loads in grinding and complex chemical reaction in etching pretreatment. In this paper, the effect of the grinding wheel speed, the grinding feed rate and the etching time with the Murakami and acid solution on the residual stress and surface topography of coated cemented carbide cutting tools are investigated. After each process, the samples are characterized by scanning electron microscopy and X-ray diffraction. It is found that the grinding wheel speed has a significant influence on residual stress measured in the WC phase. Etching by Murakami generated smooth surface, which partly removed the near-surface residual stress quickly but cannot eliminate.

Cemented carbide cutting tools coated with silicon nitride

2018 ◽  
pp. 104-109
Author(s):  
V. S. Panov
Keyword(s):  
Silicon Nitride ◽  
Cutting Tool ◽  
Cutting Tools ◽  
Cemented Carbide ◽  
Wear Resistant ◽  
Factors Affecting ◽  
Wear Resistant Coatings ◽  
Cemented Carbide Tool ◽  
Tools Wear ◽  
Coated Cemented Carbide

The paper describes the technology of producing a wear resistant silicon nitride coating on cemented carbide cutting tools and factors affecting its structure and thickness. A review of domestic and foreign authors’ works is given on the properties and applications of cemented carbides in cutting, drilling, die stamping tools, wear resistant materials, for chipless processing of wood, plastics. It is noted that one of the promising ways of cutting tool development is using indexable throwaway inserts (ITI) with wear resistant coatings. The choice of silicon nitride as a material for cemented carbide tool coating is justified. The data on silicon nitride deposition methods, investigation of cutting tool structures and properties are provided. Laboratory and factory tests of Si3N4-coated cemented carbide tools demonstrated coating applicability in improving the wear resistance and lifetime of cutting inserts.

PVD-Al2O3-coated cemented carbide cutting tools

2004 ◽  
Vol 188-189 ◽  
pp. 186-192 ◽  
Author(s):  
M. Åstrand ◽  
T.I. Selinder ◽  
F. Fietzke ◽  
H. Klostermann
Keyword(s):  
Cutting Tools ◽  
Cemented Carbide ◽  
Coated Cemented Carbide

Microstructural investigation of α-Al2O3-epitaxially coated cemented carbide cutting tools

2001 ◽  
Vol 19 (2) ◽  
pp. 633-639 ◽  
Author(s):  
Toshio Ishii ◽  
Nobuhiko Shima ◽  
Hiroshi Ueda ◽  
Shirou Okayama ◽  
Masayuki Gonda
Keyword(s):  
Cutting Tools ◽  
Cemented Carbide ◽  
Microstructural Investigation ◽  
Α Al2o3 ◽  
Coated Cemented Carbide

Micro-blasting effect on fracture resistance of PVD-AlTiN coated cemented carbide cutting tools

2016 ◽  
Vol 308 ◽  
pp. 337-340 ◽  
Author(s):  
S. Tanaka ◽  
T. Shirochi ◽  
H. Nishizawa ◽  
K. Metoki ◽  
H. Miura ◽  
...  
Keyword(s):  
Fracture Resistance ◽  
Cutting Tools ◽  
Cemented Carbide ◽  
Coated Cemented Carbide
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