Chip-breaking tool for tapping and female thread processing...

Details Chip-breaking tool for tapping and female thread processing... Chip-breaking tool for tapping and female thread processing...

2006-08-29

2006-08-29

Carter, Monica (Department: 3722)

Cutting by use of rotating axially moving tool

Processes

Bit detachable

C408S024000, C408S030000, C408S118000, C408S222000, C470S199000, C409S259000

Reexamination Certificate

active

07097395

ABSTRACT:
Since the chip-breaking groove30is cut in the inner peripheral surface of the prepared hole22by compressing the chip-breaking tool10into the prepared hole22prior to the tapping process (the cutting process of the female thread) by the cut tap, the chip can be securely broken by the chip-breaking groove30and well discharged even in the case that the work20is made of the material having the high ductility. Accordingly, for example, as shown in FIG.10, it is possible to prevent a lot of long connected chips from entwining the tap, it is unnecessary to monitor the tapping work, and it is possible to achieve a complete automation (an unmanned work). Further, it is possible to inhibit the cut tap from being broken due to the pinching of the chip, and it is easy to execute a treatment such as a chip cleaning or the like.

REFERENCES:
patent: 1952194 (1934-03-01), Drissner
patent: 3847056 (1974-11-01), Roger
patent: 4872793 (1989-10-01), Minagawa et al.
patent: 5439335 (1995-08-01), Curtis et al.
patent: 104694 (1984-04-01), None
patent: 2067440 (1981-07-01), None
patent: 52008589 (1977-01-01), None
patent: 52-26698 (1977-02-01), None
patent: A 2003-270846 (2003-09-01), None

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