Turning – Radially moving rotating tool inside bore – Forming non-circular bore
Patent
1978-07-17
1980-08-05
Vlachos, Leonidas
Turning
Radially moving rotating tool inside bore
Forming non-circular bore
82 1C, 82 14, 82 2E, 82 4A, 82 19, 82 24A, B23B 502, B23B 524, B23B 544
Patent
active
042156033
ABSTRACT:
A machine for machining brake drums wherein the cutting tool is cyclically retracted axially on its rotating spindle at a rate corresponding to the axial feed rate of the spindle and then quickly advanced on the spindle to the same extent so that the tool marks on the machined surface comprise a series of circular, rather than helical, grooves with relatively short, axially inclined grooves connecting the successive circular grooves.
REFERENCES:
patent: 2720806 (1955-10-01), Stewart
patent: 3010344 (1961-11-01), Christensen
patent: 3391586 (1968-07-01), Van Den Kieboom
F. Jos. Lamb Company
Vlachos Leonidas
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