Electric heating – Metal heating – Cutting or disintegrating
Patent
1996-04-23
1997-02-18
Evans, Geoffrey S.
Electric heating
Metal heating
Cutting or disintegrating
B23H 100, B23H 710
Patent
active
056038518
ABSTRACT:
A wire electrical discharge machine that reliably feeds the wire electrode at high speed into an upper wire head, holes in the work and a lower wire head. This wire electrical discharge machine moves the holder, which has a vertically extending feed pipe secured thereto, up or down at high speed by activating the cylinder device. At the same time, the lower end of the wire electrode is clamped by the clamping members and the anneal rollers are driven in the reverse direction to tense the wire electrode. With the wire electrode tensed in this way, the anneal processing is performed. This construction makes the machine compact. Further, when the wire electrode is to be inserted into the holes in the work, it is fed at low speed by the anneal rollers. When the wire electrode rides on the jet stream in the jet stream guide pipe, the wire electrode is moved at high speed by the anneal rollers to reduce the time taken by the wire electrode feeding.
REFERENCES:
patent: 4778972 (1988-10-01), Josserand
patent: 4783583 (1988-11-01), Obara et al.
patent: 5077457 (1991-12-01), Onaka et al.
patent: 5130508 (1992-07-01), Umetsu et al.
patent: 5340958 (1994-08-01), Okazaki et al.
Komatsu Tatsuji
Mitsuyasu Takashi
Noda Masanori
Evans Geoffrey S.
Seibu Electric & Machinery Co., Ltd.
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