Electric heating – Inductive heating – Metal working
Reexamination Certificate
2005-03-01
2005-03-01
Evans, Robin O. (Department: 3742)
Electric heating
Inductive heating
Metal working
C219S635000, C219S221000, C219S677000
Reexamination Certificate
active
06861625
ABSTRACT:
The invention relates to a shrinking device (1) for shrinking a rotary tool (5) into a central receiving opening of a toolholder (3) which holds said rotary tool (5) in a press fit. The device comprises an induction heating device (15, 18) for thermally expanding the toolholder (3) in the area of the receiving opening. A cooling device (51, 53) with at least one cooling collar (53) which can be placed on the toolholder (3), in physical contact with the same, and through which a liquid coolant can flow, is provided for cooling the receiving opening area of the toolholder. This liquid cooling considerably reduces the overall time span needed for the shrinking process.
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Haimer Franz
Haimer Josef
Kügle Wolfgang
Evans Robin O.
Fastovsky Leonid
Haimer GmbH
Rothwell Figg Ernst & Manbeck P.C.
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