Modified Specific Energy Analysis for Laser- Based Processing of Jalore Pink Granite and Basalt Chip Stone
A. K. Sinha and S. N. Joshi
Rock processing is crucial across industries like tunneling, construction, mining, aerospace, and oil exploration, driven by rising energy demands and the need for high-strength materials. Conventional methods face challenges with tool wear and complexity. Laser-based processing offers promise but confronts issues like rock anisotropy and parameter irregularities. This study explores laser scanning of Jalore Pink Granite and Basalt Chip Stone using a 100 W CW CO2 laser. The impact of laser beam scans on modified specific energy and rate of penetration is analyzed. Optical microscopy reveals distinct interaction mechanisms: rod-like patterns for Jalore granite and edge melting with one-side accumulation for basalt. Results highlight the efficacy of beam scans in laser rock processing, advancing understanding of material removal dynamics.
Keywords: Modified specific energy, rate of penetration, laser rock drilling, laser scanning, optical microscopy