B - Operations – Transporting – 23 – F
Patent
B - Operations, Transporting
23
F
90/24
B23F 9/08 (2006.01) B23C 3/32 (2006.01) B23Q 1/48 (2006.01)
Patent
CA 1037308
ABSTRACT OF THE DISCLOSURE Helical races are formed in a curved work-piece using a suitable cutting tool by performing a double rotation of the tool and work-piece about orthogonal axes. The double rotation maintains the tool at a uniform attack angle relative to the work piece as it forms each race with the result that the race has a uniform cross-section along its entire length.
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