Electric heating – Metal heating – Cutting or disintegrating
Patent
1988-01-04
1989-04-25
Pellinen, A. D.
Electric heating
Metal heating
Cutting or disintegrating
73 377, 73160, B23H 702, G01B 1308
Patent
active
048250309
ABSTRACT:
Device placed at the outlet of a machining zone and having an outflow gauge equipped with two barrels in which a metal wire passes, an electrical current running through the wire which travels under tension between two guides, a pumping installation injecting a machining fluid under pressure through an opening of this guage, an element mounted at another opening of the gauge to measure the outflow of this fluid between wire and barrel, a transducer converting this measurement into an electrical variable, and a comparator suitable for sending a signal to a control unit when this measurement reaches or surpasses a reference value. The control unit is arranged for controlling a pulse generator to change at least one machining parameter in such a way as to bring the measurement of the outflow to or to below the reference value. This device is useful for monitoring the variation in the cross-section of the wire and preventing its breaking.
REFERENCES:
patent: 532319 (1976-02-01), Stern
patent: 3543562 (1970-12-01), Clemenceau
patent: 3593566 (1971-07-01), Loopuyt
patent: 3885417 (1975-05-01), Stern
patent: 4306450 (1981-12-01), Moser
Charmilles Technologies S.A.
Evans Geoffrey S.
Pellinen A. D.
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