thermal drilling

thermal drilling

[¦thər·məl ¦dril·iŋ]
(mechanical engineering)
A machining method in which holes are drilled in a workpiece by heat generated from the friction of a rotating tool.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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To reduce cost, the company investigated using thermal drilling, where friction is used to drill holes into the metal, eliminating the use of welded nuts or inserts.