Polishing of polycrystalline diamond by the technique of dynamic friction, part 3: Mechanism exploration through debris analysis

2007 ◽  
Vol 47 (15) ◽  
pp. 2282-2289 ◽  
Author(s):  
Y. Chen ◽  
L.C. Zhang ◽  
J.A. Arsecularatne ◽  
I. Zarudi
Keyword(s):  
Polycrystalline Diamond ◽  
Dynamic Friction

Modelling the Polishing Efficiency of Polycrystalline Diamond Composites by the Dynamic Friction Method

2009 ◽  
Vol 407-408 ◽  
pp. 436-439 ◽  
Author(s):  
Yi Qing Chen ◽  
Thai Nguyen ◽  
Liang Chi Zhang
Keyword(s):  
Model Prediction ◽  
Material Removal ◽  
Polycrystalline Diamond ◽  
Quantitative Model ◽  
Experimental Measurements ◽  
Dynamic Friction ◽  
Material Removal Mechanisms ◽  
Constitutive Properties ◽  
Friction Method ◽  
Polishing Efficiency

This investigation aims to develop a quantitative model to estimate the material removal of polycrystalline diamond composites by dynamic friction polishing. The model accounts for not only the polishing parameters that govern the material removal mechanisms, but also the constitutive properties of the diamond composites subjected to polishing. The model prediction was justified by relevant experimental measurements.

Optical Surface Finish of PCD Composites by Dynamic Friction Polishing

2007 ◽  
Vol 364-366 ◽  
pp. 226-231 ◽  
Author(s):  
Y. Chen ◽  
Liang Chi Zhang ◽  
Joseph A. Arsecularatne
Keyword(s):  
Surface Finish ◽  
Removal Rate ◽  
Polycrystalline Diamond ◽  
Surface Characteristics ◽  
Cost Effective ◽  
Dynamic Friction ◽  
Optical Surface ◽  
Surface Characterisation ◽  
Fold Reduction ◽  
Cost Effective Technique

This paper presents a cost-effective technique for achieving optical surface finish of thermally stable polycrystalline diamond (PCD) composites using dynamic friction polishing (DFP). The effect of polishing parameters on the material removal rate and surface characteristics of polished specimens were studied. The surface characterisation was carried out by optical microscopy, atomic force microscopy (AFM), scanning electron microscope (SEM) and its attached energy dispersive X-ray (EDX) analysis. It was found that optical surface finish of PCD with roughness Ra = 50 nm could be obtained efficiently with nearly a ten fold reduction in polishing time compared to the currently used method in industry.

Effect of grain boundary on polycrystalline diamond polishing by high-speed dynamic friction

2021 ◽  
pp. 108461
Author(s):  
Yifan Liang ◽  
Yuting Zheng ◽  
Junjun Wei ◽  
Xin Jia ◽  
Xiaohua Zhu ◽  
...  
Keyword(s):  
Grain Boundary ◽  
High Speed ◽  
Polycrystalline Diamond ◽  
Dynamic Friction ◽  
Diamond Polishing

On the Polishing Techniques of Diamond and Diamond Composites

2009 ◽  
Vol 404 ◽  
pp. 85-96 ◽  
Author(s):  
Y. Chen ◽  
Liang Chi Zhang
Keyword(s):  
Material Removal ◽  
State Of The Art ◽  
Polycrystalline Diamond ◽  
The State ◽  
Dynamic Friction ◽  
Material Removal Mechanisms ◽  
Removal Mechanisms ◽  
Art Techniques

This article reviews the state-of-the-art techniques for polishing diamond and polycrystalline diamond composites. A focus is on their material removal mechanisms and features. It concludes that while each of them has its advantages and drawbacks, the technique by dynamic friction has a promising potential for polishing production.

Phase Transformation and Stress Distribution in Polished PCD Composites

2010 ◽  
Vol 443 ◽  
pp. 400-405 ◽  
Author(s):  
Yi Qing Chen ◽  
Liang Chi Zhang
Keyword(s):  
Residual Stress ◽  
Phase Transformation ◽  
Stress Distribution ◽  
Residual Stresses ◽  
Grain Boundaries ◽  
Maximum Stress ◽  
Polycrystalline Diamond ◽  
Residual Stress Distribution ◽  
Dynamic Friction ◽  
Graphite Phase

With the aid of the Raman spectroscopy, this paper investigates the phase transformation and residual stress distribution in surfaces of polycrystalline diamond composites polished by dynamic friction technique. To clarify the contribution of phase transformations to residual stresses, the study focused on the surface which was incompletely polished such that the transformed phases remained. It was found that amorphous non-diamond carbon and amorphous graphite phase appeared in grain boundaries, but pristine diamond phase was predominant within gain areas. The residual stresses vary across the polished surfaces and the maximum stress locates at the grain boundaries.

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