Modeling of hole geometrical features in laser drilling of AISI316L sheet

الملخص EN

Micro-drilling of AISI316L is an extremely challenging task.

Unconventional machining process may be used for such type of operation.

Laser beam drilling is the best for micro-drilling.

High thermal energy and convergingdiverging property of laser beam affect the quality of laser drilled holes.

In the present work, Nd:YAG laser beam has been used, and we investigate the effects of laser input parameters on responses.

To minimize the number of experiments, we get extreme information for experimental trials.

Central composite rotatable design approach has been adopted.

Analysis of variance is used to find reliable input parameters affecting responses.

From this paper, it is found that current and gas pressure are significant for hole circularity at top.

Current and pulse frequency are significant for bottom side circularity.

Current and cutting speed are significant parameters for hole taper.