BROACHING AND TUBE-INSTALLING APPARATUS
An apparatus is given for sizing long holes in graphite bodies. The apparatus comprises a shaft having 3 spiral broach cutting elements and a straight broach cutting element rotatably mounted thereon. The broach cutting elements are keyed to each other in end to end relationship with the straight broach cutting element at one end of the shaft. The spiral broach cutting elements when considered toward the straight broach cutting element increase in diameter and the cutting teeth thereon increase in lead angle. The straight broach cutting element, when considered in the same direction, increases in diameter from the minimum to maximum diameters of the spiral broach cutting elements. No longitudinal movement of the broach cutting elements is permitted on the shsft snd means are provided for the removal of chips from the apparatus.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-15-017049
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2983989
- OSTI ID:
- 4019041
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- United States
- Language:
- English
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