Metal fusion bonding – Process – Plural diverse bonding
Patent
1979-04-23
1980-06-24
Larson, Lowell A.
Metal fusion bonding
Process
Plural diverse bonding
228189, 228222, 285286, 403272, 428683, B23K 900
Patent
active
042091233
ABSTRACT:
A process for joining together parent parts made from wrought austenitic stainless steel without sensitization of the parent material, and the product produced by this process. Each wrought workpiece has welded thereto an appendage made from cast (not wrought) austenitic stainless steel which is equal to or better in corrosion resistance and mechanical properties, and is compatible with the solution heat treatment requirements of the parent austenitic stainless steels. The resulting workpiece is solution heat treated at in-process stages of manufacture to dissolve the carbides which have been formed in the heat affected zone created by the welding operation. Then two of said workpieces are welded together at the abutment of the appendages, there being no formation of precipitated carbides in the parent material, because the heat affected zone does not extend into the wrought parent material, but instead is restricted to the appendage which by definition is not sensitizable.
REFERENCES:
patent: 2308307 (1943-01-01), Robinson
patent: 2396704 (1946-03-01), Kerr
patent: 2555256 (1951-05-01), Tyson
patent: 2787699 (1957-04-01), Jessen
patent: 3467410 (1969-09-01), Chandler
patent: 4049186 (1977-09-01), Hanneman et al.
Larson Lowell A.
Mon Donald D.
Ramsey K. J.
LandOfFree
Prevention of sensitization of welded-heat affected zones in str does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Prevention of sensitization of welded-heat affected zones in str, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prevention of sensitization of welded-heat affected zones in str will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1478018