Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1988-04-01
1989-08-01
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29558, 219 6912, B21D 5300
Patent
active
048522325
ABSTRACT:
A block of electrically-conductive material which is to be formed into a body with internal and/or external surfaces that approximate hyperboloids of one sheet is placed so that its axis is set at a predetermined skew angle with relation to a travelling EDM electrode wire and the electrode wire is then moved into cutting proximity of the body. Thereafter, by revolving the body about its own axis, the external and/or internal surfaces of the body will be cut into an approximate hyperbolic surface of revolution depending upon whether the body is positioned with the cutting wire outside of the body or in a previously-formed longitudinal passage in the body. As an alternative technique, elongated channels can also be cut into the walls of the body by successively orienting the body to a selected number of angular positions with the electrode wire being either outside of the body or in a previously-formed passage in the body. At each of these angular positions, the electrode wire is moved orthogonally with respect to the axis of the wire while both the body axis skew angle and the rotational position about that axis are controlled for cutting a channel or groove in the body as required to relieve stresses in the material of the body or to convey a coolant fluid.
REFERENCES:
patent: 3566068 (1971-02-01), Bruner et al.
patent: 4069978 (1978-01-01), Moussa
patent: 4508604 (1985-04-01), Inoue
patent: 4535518 (1985-08-01), Jaqua
patent: 4547646 (1985-10-01), Briffod
patent: 4578556 (1986-03-01), Inoue
patent: 4639568 (1987-01-01), Check et al.
patent: 4743729 (1988-05-01), Beal
patent: 4777340 (1988-10-01), Kobayashi et al.
Agie, Understanding EDM Surface Integrity, Agietron Corporation.
Mitsubishi Wire-Cut EDM Systems, Mediapt Type H Off Line Automatic Programming Unit.
Daedal, State-of-the-Art Positioning Equipment, Daedal Inc., P.O. Box G, Harrison City, PA 15636-9989.
Cuda Irene
Fein Edward K.
Goldberg Howard N.
Manning John R.
Schlorff Russell E.
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