文章基本信息

标题：Cooling Ability-based Integrated Quality of Laser-drilled Holes
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作者：N.D. Pandey ; T. Mohandas ; H.S. Shan 等
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2006
卷号：56
期号：1
页码：93-101
DOI：10.14429/dsj.56.1874
语种：English
出版社：Defence Scientific Information & Documentation Centre
摘要：Research aimed at improving the end-product quality in meeting the functional needs is imperative to sustain product development. Aerospace manufacturers are increasingly using percussion laser drilling for producing cooling holes in turbine components made of nickel base superalloys. Laser drilling of superalloys has been initiated at the Defence Metallurgical Research Laboratory, Hyderabad in the last decade keeping in view its uses in Kaveri Gas Turbine Engine programme. Considerable.work has been carried out in this direction. Laser-drilled hole's quality issue has been addressed in the past considering separately the shape, precision, and functional characteristics of the laser-drilled holes. In the present investigation, a newer approach for defining hole quality has been reported which takes into account the above hole characteristics for computing cooling ability of the holes. This approach indicates that it is feasible to produce better integrated quality holes through laser drilling.
关键词：Hole quality, air-cooled components, percussion laser drilling, nickel base superalloy, SUPERNI 263A, Nd:YAG laser