𝔖 Bobbio Scriptorium
✦   LIBER   ✦

An Experimental Study on Laser Cutting Mechanisms of Polycrystalline Diamond Compacts

✍ Scribed by G.F. Zhang; B. Zhang; Z.H. Deng; J.F. Chen

Publisher
International Academy for Production Engineering
Year
2007
Tongue
English
Weight
948 KB
Volume
56
Category
Article
ISSN
0007-8506

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✦ Synopsis

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 s 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.

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