Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product – Including tool with duct
Patent
1978-04-07
1980-01-22
Hinson, Harrison L.
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
Including tool with duct
408 83, 408705, 29 90R, B23B 2710, B21C 3730
Patent
active
041847946
ABSTRACT:
A device for machining the internal wall of a cylinder has a tool head with a shank securable to a rotary and axial movable boring bar. Mounted on the periphery of the tool head are a deep hole boring bit, a paring bit and a pair of obliquely mounted smoothing rolls. There is a passage for coolant to the boring bit which decreases in size in a direction opposite to the machining direction so that the coolant is accelerated in the passage to enhance cooling and flushing of swarf. A pair of radially adjustable supporting blocks assist in supporting the tool head in the cylinder and are substantially coplanar with the boring bit. The paring bit is disposed closely behind the plane in which the blocks and the boring bit lie. Downstream of the boring bit, the coolant passage is wider and has a constant cross-section area for a limited extent. The tool head further includes a bush having a helical channel therein for passage of some of the coolant to act as a lubricant. Most of the coolant from the paring bit and the boring bit is discharged via respective channels into a cavity in the tool head as is coolant from the helical channel. The smoothing rolls are separately supplied with coolant.
REFERENCES:
patent: 1324459 (1919-10-01), Maier
patent: 2014679 (1935-09-01), Eckroate
patent: 2283497 (1942-05-01), Fields et al.
patent: 2863341 (1958-12-01), Rosato et al.
patent: 2873632 (1959-02-01), Bissey
patent: 3033062 (1962-05-01), Carlstedt
patent: 3348434 (1967-10-01), Plummer
patent: 3762828 (1973-10-01), Faber
patent: 3795957 (1974-03-01), Steusloff
patent: 3808656 (1974-05-01), Lindskog
Henninghaus Ferdinand
Hinson Harrison L.
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