__________________ laser drilling uses a rapid fire burst of pulses micro-machining method.(a) Conventional(b) Trepanning(c) Percussion(d) HydrostaticThe question was asked in an online interview.Question is from Drilling and Road Making Equipments in section Construction Equipments of Construction & Building Materials

__________________ laser drilling uses a rapid fire burst of pulses mi

1.	__________________ laser drilling uses a rapid fire burst of pulses micro-machining method.(a) Conventional(b) Trepanning(c) Percussion(d) HydrostaticThe question was asked in an online interview.Question is from Drilling and Road Making Equipments in section Construction Equipments of Construction & Building Materials
Answer» CORRECT option is (c) Percussion To explain: Varying the laser pulse duration, spot size, optics and beam characteristics Percussion laser DRILLING produces a HIGH quality hole with minimum residue and CONSISTENT edge quality from entry to EXIT point. The percussion laser drilling evaporates the machine substrate laser by laser without noticeable strata or striations.

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