Titanium tube seal welding head enclosure

Details Titanium tube seal welding head enclosure Titanium tube seal welding head enclosure

1994-02-14

1996-03-26

Bradley, P. Austin

Metal fusion bonding

Including applicator movable during fusion

Orbital or plane curvilinear motion

219 602, 2191212, B23K 900

Patent

active

055013899

ABSTRACT:
An arrangement for providing a seal fillet weld on a titanium tube sheet and tube includes an enclosure having a closed top and an open bottom opposite the top. The enclosure is positioned over the tubes to be welded on the tube sheet. A rotating seal welding head is contained within the enclosure for performing the welding operation on the tube and tube sheet. Trapped air is purged from the enclosure and inert gas is provided to the enclosure for creating an inert gas atmosphere for facilitating the welding operation. A rubber gasket is used to seal the enclosure to the tube sheet for ensuring a sealed inert atmosphere.

REFERENCES:
patent: 2908805 (1959-10-01), Apblett et al.
patent: 3601248 (1971-08-01), Gerard
patent: 3806693 (1974-04-01), Miller
Welding Design & Fabrication, "At Last, A Good Way to Back-purge Piping", Stocker, R. P., Oct. 1973, p. 53.
Titanium Welding Techniques, Titanium Engineering Bulletin, No. 6, Mar. 1960, pp. 7-12 and FIG. 4.

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