Method and device for producing thread
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United States of America Patent
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-
Aug 19, 1986
Grant Date -
N/A
app pub date -
Jan 23, 1985
filing date -
Jan 27, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method for producing threads and machine tool for thread milling, wherein in order to avoid high cutting speeds and also to produce short millings, a milling cutter is used, which comprises several teeth forming at least one thread, rotates at the point of engagement in the opposite direction to the workpiece, encompasses the latter during the production of an external thread with substantial radial play or in the production of an internal thread is encompassed by the workpiece with substantial radial play, and wherein the advance s of the milling cutter meets the following condition: s=h.multidot.(1-i) with h representing the pitch of the thread to be produced and i the rotational speed ratio of milling cutter and workpiece differing from 1.
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