Metal deforming – By use of roller or roller-like tool-element – With modification or control of temperature of work – tool or...
Patent
1978-04-06
1979-11-13
Combs, E. M.
Metal deforming
By use of roller or roller-like tool-element
With modification or control of temperature of work, tool or...
72208, B21B 2504
Patent
active
041738802
ABSTRACT:
An internally cooled mandrel is provided with regularly arranged copper fingers projecting into the inner flow space and leaving a recess adjacent the outer surface which is filled with buildup. These fingers are arranged in axial rows in which the pins are staggeredly positioned.
REFERENCES:
patent: 2650034 (1953-08-01), Wiemer
patent: 2972472 (1961-02-01), Konold
patent: 3135319 (1964-06-01), Richards
patent: 3604237 (1971-09-01), Kawanami et al.
patent: 4019846 (1977-04-01), Greenberger
Combs E. M.
Mannesmann Aktiengesellschaft
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