Technology to drill micro-holes without recast layer by laser on nickel-based alloy

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Abstract

The technology to produce micro-holes without recast layer on nickel-based alloy is studied in this work. The holes are firstly drilled with Nd: YAG laser, a millisecond pulsed laser of high power and efficiency. For the reason of thermal effect, however, holes drilled by this laser always have the defect of recast layer, which is a serious problem, especially in the application as aviation and aerospace engine. In order to remove the recast layer, laser parameters are optimized to produce micro-holes with the least recast layer, and then a kind of chemical etching is used to clear the residual recast layer completely.

Original languageEnglish
Title of host publicationIISME2012
Pages303-307
Number of pages5
DOIs
StatePublished - 2012
Event2012 2nd International Conference on Industry, Information System and Material Engineering, IISME 2012 - Wuhan, China
Duration: 17 Mar 201218 Mar 2012

Publication series

NameAdvanced Materials Research
Volume459
ISSN (Print)1022-6680

Conference

Conference2012 2nd International Conference on Industry, Information System and Material Engineering, IISME 2012
Country/TerritoryChina
CityWuhan
Period17/03/1218/03/12

Keywords

  • Chemical etching
  • Laser
  • Micro-hole
  • Nickel-based alloy
  • Recast layer

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