Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10673038 | CIRP Annals - Manufacturing Technology | 2010 | 4 Pages |
Abstract
Laser percussion drilling is inherently associated with poor geometry and thermal defects. While mechanical micro-drilling produces good quality holes, premature drill breakage often occurs and it is difficult to drill holes at acute angles. This paper presents the feasibility and basic characteristics of a new approach for micro-drilling In718 alloy sheets at an acute angle, using sequential laser and mechanical drilling. The results demonstrate that sequential laser-mechanical micro-drilling alleviates the defects associated with laser-drilled holes, reduces burr size and machining time and increases the tool life compared with mechanical drilling.
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Physical Sciences and Engineering
Engineering
Industrial and Manufacturing Engineering
Authors
M.M. Okasha, P.T. Mativenga, N. Driver, L. Li,