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An Experimental Study on Laser Cutting Mechanisms of Polycrystalline Diamond Compacts |
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| Authors: | G.F. Zhang B. Zhang Z.H. Deng |
| Affiliation: | 1 Hunan University, Hunan, China 2 Xiangtan University, Hunan, China 3 University of Connecticut, Connecticut, USA 4 Hibor Scientific, Beijing, China |
| Abstract: | The objective of this study is to experimentally investigate the cutting mechanisms of polycrystalline diamond compacts (PDC) using two different lasers: (a) a near infrared Nd:YAG laser (Neodymium-doped Yttrium Aluminum Garnet) of 1064 nm wavelength and 100 μs pulse width; and (b) a green light KTP (Potassium Titanyl Phosphate)/Nd:YAG laser of 532 nm wavelength and 120 ns pulse width. To realize the objective, the study applies polishing, lapping and etching processes to the cut-surfaces of the PDC samples. It further observes and analyzes the processed cut-surfaces with scanning electron microscopy (SEM) and Raman spectroscopy. A discussion is provided to reveal the underlying physics of the laser cutting mechanisms, and a conclusion is drawn based on the outcomes from the experimental investigation and the discussion. |
| Keywords: | Laser Cutting PDC Heat-Affected Zone |
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