Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product – Including tool with duct
Patent
1986-02-06
1987-05-12
Weidenfeld, Gil
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
Including tool with duct
407 11, 408 57, B23B 2710, B23B 5106
Patent
active
046645675
ABSTRACT:
A drill bit, particularly for cutting deep holes in hard materials, includes a tubular shank with a solid center and diametrically opposed coolant conduits which supply coolant to a tungsten carbide tip located on one end of the tubular shank. Swarf and debris are carried by the coolant away from the cutting area and along swarf clearance channels located along the exterior of the shank tube out of the borehole. The carbide tip is brazed to the tubular shank and is formed with a pair of angularly spaced tubular chambers which communicate with the coolant conduits in the shank. One cutting edge is provided on top of each chamber in the tip. A coolant hole is formed at the top of each tubular chamber, behind the cutting edge. The coolant which emerges from the tip flows to the space between the tubular chambers and carries with it the swarf along the swarf clearance channels defined by the shank out of the borehole.
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Bijur Lubricating Corp.
Bishop Steven C.
Weidenfeld Gil
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