Wear Characteristics of Various Diamond Tools in Cutting of Tungsten Carbide

2011 ◽  
Vol 325 ◽  
pp. 153-158 ◽  
Author(s):  
Akihiko Kubo ◽  
Yasushi Mochida ◽  
Junichi Tamaki ◽  
Katsuko Harano ◽  
Hitoshi Sumiya ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Tungsten Carbide ◽  
Vapour Deposition ◽  
Diamond Tool ◽  
Chemical Vapour ◽  
Polycrystalline Diamond ◽  
Wear Characteristics ◽  
Diamond Tools ◽  
Flank Face ◽  
Monocrystalline Diamond

Face cutting of tungsten carbide was conducted using two monocrystalline diamond tools and three polycrystalline diamond tools to investigate the wear characteristics in terms of the crystal structure and composition of the diamond. It was found that the wear of the monocrystalline diamond tool depends on the crystal planes that form the rake face and flank face of the cutting tool, and a cleavage fracture occurs when the cutting force acts as a shear force on the (111) crystal plane. The binderless nano-polycrystalline diamond tool exhibits excellent wear resistance beyond those of the sintered polycrystalline diamond tool and chemical vapour deposition polycrystalline diamond tool, as well as better wear resistance than the monocrystalline diamond tool.

A Low Temperature CVD Process for TiN Coatings

1989 ◽  
Vol 168 ◽  
Author(s):  
A. Aguero ◽  
D. Little ◽  
P. Lowden
Keyword(s):  
Wear Resistance ◽  
Low Temperature ◽  
Titanium Nitride ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Reduced Pressure ◽  
Tin Coatings ◽  
Excellent Adhesion ◽  
Low Temperature Process

AbstractA novel low temperature process for the chemical vapour deposition of titanium nitride films has been developed. Titanium sub-halides generated “in situ” by chlorination of titanium pellets are subsequently reacted with ammonia at reduced pressure and temperatures of 450–600° C. The coatings have excellent adhesion and wear resistance. A description of the process and the properties of the coatings produced by it will be presented.

XRD Studies on Residual Stress of the Diamond Films Grown Using Hot Filament Chemical Vapour Deposition Technique on Silicon Nitride and Tungsten Carbide Substrates

2013 ◽  
Vol 686 ◽  
pp. 325-330 ◽  
Author(s):  
Esah Hamzah ◽  
Tze Mi Yong ◽  
Kevin Chee Mun Fai
Keyword(s):  
Residual Stress ◽  
Silicon Nitride ◽  
Tungsten Carbide ◽  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Diamond Films ◽  
Chemical Vapour ◽  
Deposition Technique ◽  
Chemical Vapour Deposition Technique ◽  
Hot Filament

This study analyses residual stress measurement using X-Ray diffraction method on ultrafine-polycrystalline diamonds and polycrystalline diamonds films grown using Hot Filament Chemical Vapour Deposition technique (HFCVD) on silicon nitride(Si3N4) and tungsten carbide (WC) substrates in the same chamber at the same time with varied pretreatments prior to HFCVD diamond deposition. Measurements were taken perpendicular to the surface and the measured residual stress states of the diamond films are in compression. Thus, assuming isotropic properties of the film, the diamond films grown have tension residual stress parallel to the surface of the substrate. Residual stress is estimated to have the lowest stress for substrate that has undergone 5g/liter silicon carbide seeding process. Effects of residual stress to adhesion are discussed for both substrates.

Hot filament chemical vapour deposition and wear resistance of diamond films on WC-Co substrates coated using PVD-arc deposition technique

2006 ◽  
Vol 15 (9) ◽  
pp. 1284-1291 ◽  
Author(s):  
Riccardo Polini ◽  
Fabio Pighetti Mantini ◽  
Massimiliano Barletta ◽  
Roberta Valle ◽  
Fabrizio Casadei
Keyword(s):  
Wear Resistance ◽  
Chemical Vapour Deposition ◽  
Vapour Deposition ◽  
Diamond Films ◽  
Chemical Vapour ◽  
Deposition Technique ◽  
Hot Filament ◽  
Arc Deposition

Influence of Tungsten-Carbide and Cobalt on Tool Wear in Cutting of Cemented Carbides with Polycrystalline Diamond Tool

2013 ◽  
Vol 7 (4) ◽  
pp. 433-438 ◽  
Author(s):  
Junsuke Fujiwara ◽  
◽  
Keisuke Wakao ◽  
Takeshi Miyamoto ◽  
Keyword(s):  
Particle Size ◽  
Tool Wear ◽  
Tungsten Carbide ◽  
Diamond Tool ◽  
Polycrystalline Diamond ◽  
Cemented Carbides ◽  
Large Particles

The influence of the tungsten-carbide (WC) particle size and Co contents of cemented carbides on polycrystalline diamond tool wear during turning was investigated experimentally. The main results obtained were as follows. (1) Tool wear increased with increasing Co content. (2) It is important to cut off the binder between the WC particles and the Co. (3) Cemented carbides containing small WC particles are more effective than cemented carbides containing large particles.

Two-Layer Tool with Hardness Distribution Around Tool Edge for Reducing Cutting Forces in CFRP Machining

2016 ◽  
Vol 10 (3) ◽  
pp. 364-371 ◽  
Author(s):  
Satoru Maegawa ◽  
◽  
Shinya Hayakawa ◽  
Fumihiro Itoigawa ◽  
Takashi Nakamura ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Cutting Forces ◽  
Polycrystalline Diamond ◽  
High Wear Resistance ◽  
Reinforced Plastics ◽  
Narrow Region ◽  
Tool Edge ◽  
Fiber Reinforced Plastics ◽  
Flank Face ◽  
Low Wear

This study presents a method for extending the life of tools in cutting of Carbon-fiber-reinforced plastics (CFRP). In the previous study, our research group found that the use of two layer tool, which has a wear resistance distribution due to the use of a combination of two different materials with different hardnesses, is effective for decreasing cutting force during machining of CFRP composites. In the two layer tool, a narrow region of the flank face close to the tool edge and the whole of the rake face were made of a material with a relatively high wear resistance, e.g., diamond or polycrystalline diamond (PCD). In contrast, the other region of the flank face was made of a material with a relatively low wear resistance, e.g., tungsten carbide (WC-Co). In this study, based on some experiments, the effect of the thickness of high wear resistance region on the reduction effects of cutting forces was investigated.

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