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Article: Thread-milling now covers the full range. (computer numerical-controlled thread-milling applications, features and procedures) (Cover Story)
- Article from:
- Modern Machine Shop
- Article date:
- June 1, 1992
- Author:
CopyrightCOPYRIGHT 1992 Gardner Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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With today's CNC machining centers, thread-milling has entered a whole new era. Indexable inserts now allow tough precision threads to be quickly and efficiently milled on almost any material, in holes from 3/8-inch (about 9.5 mm) diameter, up to virtually any size.
Let's say that a difficult workpiece has been machined, and it includes three bores, none of which are on the axis of symmetry. You would like to thread them with a single point insert to get a thread with higher quality and greater strength, but the piece can't be turned, so you have to tap it. Right? Wrong! If you have a CNC (computer numerical control) machining center capable of helical ...