Title:
LARGE TAPER MACHINING METHOD USING WIRE ELECTRIC DISCHARGE MACHINE
Document Type and Number:
WIPO Patent Application WO/1989/003742
Kind Code:
A1
Abstract:
This invention provides a large taper machining method using a wire electric discharge machine which can carry out a large taper machining for a taper angle of 20� or larger stably and with high accuracy and can also improve surface smoothness of the workpiece. When electric discharge machining including machining of a large taper with a taper angle of 20� or larger is executed, a wire electrode (5) consisting of a soft electrode wire for discharge machining having a tensile strength of up to 46 kg/mm2 is used. The wire electrode bent greatly at wire support portions of upper and lower wire guides (8, 12) is thereafter easily transformed into a straight line and forms a linear portion between both wire guides, thereby stabilizing machinability and improving machining accuracy and surface smoothness of the workpiece.
Inventors:
OBARA HARUKI (JP)
TAKASHIMA HIDENORI (JP)
TAKASHIMA HIDENORI (JP)
Application Number:
PCT/JP1988/000991
Publication Date:
May 05, 1989
Filing Date:
September 28, 1988
Export Citation:
Assignee:
FANUC LTD (JP)
International Classes:
B23H7/06; B23H7/08; (IPC1-7): B23H7/06; B23H7/08
Foreign References:
| JPS56500405A | 1981-04-02 | |||
| JPH06240126B | ||||
| JPH05691308A | ||||
| JPH05467519A |
Other References:
INOUE SATOSHI and Three Others (Authors) (Iwanami Rikagaku Jiten) Zoteiban, 15 January 1961 (15. 01. 61) IWANAMI SHOTEN, publishers, p.678, right column, (Shinchu (Brass) no Ko
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