Title:
WIRE ELECTRIC DISCHARGE MACHINING METHOD
Document Type and Number:
WIPO Patent Application WO/1997/007921
Kind Code:
A1
Abstract:
A wire electric discharge machining method capable of carrying out a machining in a first step and a cutting in a second step using one machining program comprising the steps of setting and inputting programs for machining routes for cutting respective male molds (A1 to A3), an accumulation 'alpha' and a reverse amount 'beta', stopping an electric discharge machining so as to leave the accumulation 'alpha' in a first machining and storing a position where the machining is stopped, and carrying out in a second step an automatic wire connection at a wire connecting position that is way back along a machining groove by the reverse amount 'beta' from the machining stop position in the first step and cutting the respective male molds (A) by effecting electric discharge machining from the wire connecting position. A wire electric discharge machine comprises an annealing/fusing device that anneals and fuses the wire by heating the wire with a current supplied to the wire, whereby linearity is provided to a wire by annealing and a semi-spherical configuration is provided to a wire leading end by fusion, thereby making it possible for a wire to easily be introduced into the machining groove at the wire connecting position.
Inventors:
KAJITORI TOYOTADA (JP)
KITA YUKI (JP)
KITA YUKI (JP)
Application Number:
PCT/JP1996/002348
Publication Date:
March 06, 1997
Filing Date:
August 22, 1996
Export Citation:
Assignee:
FANUC LTD (JP)
KAJITORI TOYOTADA (JP)
KITA YUKI (JP)
KAJITORI TOYOTADA (JP)
KITA YUKI (JP)
International Classes:
B23H7/02; B23H7/06; B23H7/10; B23H7/20; (IPC1-7): B23H7/02
Foreign References:
| JPS63105822A | 1988-05-11 | |||
| JPS6126455B2 | 1986-06-20 |
Other References:
See also references of EP 0787554A4
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