Thread Mill How-To Guide
Machining Technique
OSG’s A Brand & EXOCARB® Thread Mills have been developed for thread milling on a 3-Axis CNC controlled machine tool. Threads are produced by advancing one pitch feed per revolution in the axial direction, utilizing the planet-like rotation and revolution movements of the tool. Internal and right/left hand threads can all be produced with this one tool by simply changing the direction of feed.
Threading Process
1-2 Move to edge (maintain clearance) 2-3 Cut with helical milling 3-4 Mill the circumference of the circle 4-5 Pull away from the edge 5-6 Remove tool
The transition between the start and finish of the milling operation must be smooth, and the appropriate amount of feed is essential for minimizing milling resistance. There are many different methods for using this tool, but our research has shown that this technique provides the most precise and efficient operation.
Threading Technical
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