Electric heating – Metal heating – Cutting or disintegrating
Patent
1983-03-21
1985-10-15
Envall, Jr., Roy N.
Electric heating
Metal heating
Cutting or disintegrating
83167, 836511, 204206, 204297R, 219 69M, 269 32, 269152, B23P 108, B23Q 308, B26D 702
Patent
active
045476462
ABSTRACT:
A support mechanism for a workpiece cut off by electrical discharges in a travelling wire EDM apparatus. The workpiece is supported between support members provided with clamps. One support member is controllably pivotable around a horizontal axis, while the second support member is displaceable vertically and horizontally along crossed axes. In addition, the second support member may be rotated around a vertical axis. Through appropriate sequential operation of the clamps and relative displacement of the support members, the areas of the workpiece clamped by the clamps may be changed at will, and the cuttings from the workpiece may be supported by one of the clamp members to prevent the fall of the cuttings at the end of a cutting operation.
REFERENCES:
patent: 1822501 (1931-09-01), Onsrud
patent: 2816586 (1957-12-01), Koberle
patent: 3495258 (1970-02-01), Kholodnov et al.
patent: 3731044 (1973-05-01), Ullmann et al.
patent: 4233486 (1980-11-01), Inoue
patent: 4484052 (1984-11-01), Inoue
patent: 4486642 (1984-12-01), Inoue
"Traveling Wire EDM", Presented at SME Tool Conference and Exposition, Nov. 1979, by Husman.
Ateliers des Charmilles S.A.
Envall Jr. Roy N.
Evans Geoffrey S.
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