Assembly of parts forming an angle between them and process for

Details Assembly of parts forming an angle between them and process for Assembly of parts forming an angle between them and process for

1990-08-08

1992-06-02

Ramsey, Kenneth J.

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

228121, 228123, 228254, 250393, 359855, 359871, 403272, B23K 100

Patent

active

051192403

ABSTRACT:
An assembly of parts forming an angle between facing surfaces of the parts and a process for producing an assembly is described. The parts (2, 4) are provided with contact elements or pads (6, 8, 10, 12) for connection to one another by means of a relatively low melting point metallic soldering material. The surface of each of the pads is wettable by the low melting point metallic material in the molten state, while areas surrounding the pads are not wettable. The contact pads of one of the parts are covered with flat coils or wafers (10, 12) of the low melting point metallic material. The wafers have the same thickness, but different volumes. The contact pads of the other part are placed on the corresponding wafers. The wafers' thickness, volumes, and spacing are chosen so that when the wafers are heated to the molten state and form truncated spherical drops due to surface tension, the parts form between them a predetermined angle. The invention has particular application to the manufacture of mirrors.

REFERENCES:
patent: 3458925 (1969-08-01), Napier et al.
patent: 4289380 (1981-09-01), Tucker
patent: 4352449 (1982-10-01), Hall et al.
patent: 4623955 (1986-11-01), Sartini
patent: 4817849 (1989-04-01), Yamamoto et al.

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