US 11,999,019 B2
Aluminum-based welding electrodes
Vivek Sengupta, Toronto (CA)
Assigned to LINCOLN GLOBAL, INC., Santa Fa Springs, CA (US)
Filed by Lincoln Global, Inc., Santa Fe Springs, CA (US)
Filed on Sep. 1, 2021, as Appl. No. 17/464,535.
Claims priority of provisional application 63/090,867, filed on Oct. 13, 2020.
Claims priority of provisional application 63/081,623, filed on Sep. 22, 2020.
Prior Publication US 2022/0088724 A1, Mar. 24, 2022
Int. Cl. B23K 35/28 (2006.01); B23K 35/02 (2006.01); C22C 21/00 (2006.01)
CPC B23K 35/286 (2013.01) [B23K 35/0261 (2013.01); C22C 21/00 (2013.01)] 40 Claims
OG exemplary drawing
 
1. A consumable welding electrode, comprising:
a base metal composition comprising at least 70% by weight of aluminum; and
a second metal capable of forming a binary eutectic with aluminum, wherein the binary eutectic undergoes a binary eutectic solidification at a eutectic temperature of 595-660° C.,
wherein the second metal is present in a form and at a hypoeutectic concentration greater than 0.05 weight % and up to 0.5 weight % such that a solidification temperature range of a molten weld metal formed by melting the consumable welding electrode is less than 65° C.