Method of fabricating a hollow squarax inner conductor

Details Method of fabricating a hollow squarax inner conductor Method of fabricating a hollow squarax inner conductor

1986-12-08

1989-01-17

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

333248, H01R 4300

Patent

active

047979950

ABSTRACT:
A method of fabricating hollow square inner conductors having precise outer dimensions is disclosed. A first "u" shaped slot (10) is machined in a base plate (12) and a cover plate (16) is then brazed to the sloted surface (18). The cover plate (16) is machined to provide a first wall (20) of desired thickness. Second and third slots (22, 24) are machined in the base plate (12) parallel to the first slot (10) on opposite sides thereof to provide second and third walls (26, 28) of the hollow conductor (38). A sacrificial metal (30) having a melting point below that of the base plate metal is cast into the second and third slots (22, 24). A fourth wall (36) is formed by machining material from the base plate face (32) opposite the slotted surface (18). The sacrificial metal (30) is then removed to provide the hollow inner conductor (38) having precise outer dimensions (A, B).

REFERENCES:
patent: 3449698 (1969-06-01), Cooper
patent: 4260964 (1981-04-01), Saul
patent: 4301430 (1981-11-01), Stachejko

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