Metal fusion bonding – Process – With shaping
Patent
1984-04-10
1987-01-06
Godici, Nicholas P.
Metal fusion bonding
Process
With shaping
228254, B23K 3100
Patent
active
046340424
ABSTRACT:
The method for manufacturing an angiographic coil spring guidewire includes the step of: coating a predetermined length of a refractory metal wire with a metallic glaze which has a melting point less than the refractory metal wire; wrapping the coated wire around a mandrel in order to form a wire coil therearound; removing the mandrel from the wire coil; inserting a core wire having a melting point less than the wire coil and close to the melting point of the metallic glaze within the wire coil, so that a portion of the core wire protrudes from one end of the wire coil; surrounding the wire coil and core wire except for the protruding end of the core wire with a thermally conductive chill; heating the portion of the core wire which protrudes from the wire coil until the core wire melts so that a rounded head portion is formed such that the heat from the core wire melts the metallic glaze on the inside surface of the wire coil in order to create an oxide-free resilient bond between the inside surface of the wire coil and the core wire.
REFERENCES:
patent: 1614501 (1927-01-01), Stoekle
patent: 2258836 (1941-10-01), Willner
patent: 2387903 (1945-10-01), Hensel
patent: 2922092 (1960-01-01), Gazzara et al.
patent: 3006065 (1961-10-01), Watson
patent: 3079676 (1963-03-01), Meyers
patent: 3159462 (1964-12-01), Kadelburg
patent: 3412458 (1968-11-01), Delnero
patent: 3521620 (1970-07-01), Cook
patent: 3547103 (1970-12-01), Cook
patent: 3812393 (1974-05-01), Koo et al.
patent: 3877495 (1975-04-01), Koo et al.
patent: 3906938 (1975-09-01), Fleishhacker
patent: 4003369 (1977-01-01), McCarty et al.
patent: 4080706 (1978-03-01), Heilman et al.
patent: 4291444 (1981-09-01), Heilman et al.
Collins Henry W.
Cordis Corporation
Godici Nicholas P.
Reid G.
Vigil Thomas R.
LandOfFree
Method of joining refractory metals to lower melting dissimilar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of joining refractory metals to lower melting dissimilar , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of joining refractory metals to lower melting dissimilar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-678220