Metal working – Method of mechanical manufacture – Shaping by direct application of fluent pressure
Patent
1978-08-07
1981-01-06
Combs, Ervin M.
Metal working
Method of mechanical manufacture
Shaping by direct application of fluent pressure
29517, 29863, 72DIG24, B23P 1700
Patent
active
042427878
ABSTRACT:
According to the method for joining a fiberglass plastic rod to a metal fitting of an electrical device, a bore is first provided in the metal fitting, the diameter of said bore being somewhat greater than that of the fiberglass plastic rod. One of the rod's ends is then installed in the bore, and the gap defined between the bore formed in the metal fitting and fiberglass plastic rod is filled with a porous material. The whole is then compressed by using the pulse loading technique. The use of pulse loading for joining the fiberglass plastic rod to the metal fitting makes it possible to develop a high pressure in the zone of the joint without destroying the rod; this task is facilitated by the presence of the porous layer between the rod and metal fitting. Compression by pulse loading does not necessitate the use of expensive equipment, nor does it impose stringent accuracy requirements upon the elements to be joined. The method according to the invention accounts for a desired distribution of pressure over the inbuilt end of the fiberglass plastic rod.
REFERENCES:
patent: 2367206 (1945-01-01), Davis
patent: 3152392 (1964-10-01), Coppack et al.
patent: 3192622 (1965-07-01), Bannerman
patent: 3341650 (1967-09-01), Broske
patent: 3684820 (1972-08-01), Johnsen
patent: 3844665 (1974-10-01), Smith et al.
patent: 4130926 (1978-12-01), Willem
Deribas Andrei A.
Limasov Alexei I.
Matytsin Alexei I.
Shebalin Rudolf I.
Staver Anatoly M.
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