Energy-Based Volumetric Rock Destruction Criterion in the Rotary–Percussion Drilling Technology Improvement
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mining Science"
DOI: 10.1134/s1062739117063114
Abstract: Efficiency of energy-based criterion of volumetric rock destruction in estimation of drilling technology is theoretically validated and experimentally proved in in-situ rotary–percussion drilling in mines in Russia. The criterion is adapted to the performance of… read more here.
Keywords: criterion; energy; percussion drilling; rotary percussion ... See more keywords
Percussion drilling in glasses and process dynamics with femtosecond laser GHz-bursts.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.455553
Abstract: We report for the first time to our knowledge on top-down percussion drilling of high-quality deep holes in different glasses with femtosecond laser pulses in GHz-burst mode. We reveal the dynamics of the percussion drilling… read more here.
Keywords: femtosecond laser; percussion; percussion drilling; ghz ... See more keywords