Locking thread forming tap

Details Locking thread forming tap Locking thread forming tap

1976-01-15

1977-05-17

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Tool or tool with support

With pitch-stabilizing ridge

85 47, B23G 506

Patent

active

040239144

ABSTRACT:
A thread forming tap comprising a shank section, a body section extending longitudinally from the shank section, a helical thread formed on the body section and having radially converging flank portions which define an inclined ramp area arranged at a preselected angle to the axis of the tap and adapted to form a complementary inclined ramp at the root of the thread to be formed by the tap.

REFERENCES:
patent: 896503 (1908-08-01), Zogg
patent: 1961003 (1934-05-01), Lamond
patent: 3125772 (1964-03-01), Beck

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