Low voltage electrical based parts-in-place (PIP) system for con

Details Low voltage electrical based parts-in-place (PIP) system for con Low voltage electrical based parts-in-place (PIP) system for con

1998-01-28

1999-10-05

Walberg, Teresa

Electric heating

Metal heating

By arc

21912154, B23K 900

Patent

active

059618558

ABSTRACT:
A detection system for a cutting torch for use in connection with a workpiece. The detection system has an electrode and a tip. A housing supporting the tip and the electrode provides relative movement therebetween and allows electrical contact between the tip and the electrode. A sensor circuit senses when the electrode and the tip are in electrical contact. The sensor circuit generates a switch control signal when the electrode and tip are in electrical contact. A power supply provides a first voltage and a second voltage such that a potential voltage difference is established between the electrode and the and/or workpiece. A magnitude of the first voltage is less than a magnitude of the second voltage. A first switch selectively provides the second voltage to the electrode in response to the switch control signal whereby the potential voltage difference between the electrode and the tip and/or workpiece corresponds to the second voltage when the switch control signal indicates that the electrode and tip are in electrical contact.

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