Scalloped threader cutting insert

Details Scalloped threader cutting insert Scalloped threader cutting insert

1987-08-17

1989-08-08

Olszewski, Robert P.

Cutters, for shaping

With chip breaker, guide or deflector

407114, B23B 2716

Patent

active

048547859

ABSTRACT:
In a thread-cutting insert of the type having a plurality of teeth, each of the respective teeth of the insert includes a pair of scallops which intersect closely adjacent to the forward cutting edge of each tooth to form a ridge which tends to split a chip.

REFERENCES:
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patent: 3786541 (1974-01-01), Lundgren
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patent: 4215957 (1980-08-01), Holma et al.
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patent: 4335984 (1982-06-01), Zweekly
patent: 4531863 (1985-07-01), Smith
patent: 4572713 (1986-02-01), Schmidt
patent: 4606678 (1986-08-01), Zweekly
patent: 4626140 (1986-12-01), Zweekly et al.
patent: 4669925 (1987-06-01), Lowe et al.

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