US 12,459,052 B2
Methods for friction stir welding involving dissimilar materials
Scott A. Whalen, West Richland, WA (US); M. D. Reza-E-Rabby, Richland, WA (US); Kenneth A. Ross, West Richland, WA (US); Martin McDonnell, Sterling Heights, MI (US); and Yuri Hovanski, Mapleton, UT (US)
Assigned to Battelle Memorial Institute, Richland, WA (US)
Filed by Battelle Memorial Institute, Richland, WA (US)
Filed on Oct. 25, 2023, as Appl. No. 18/494,648.
Application 18/494,648 is a division of application No. 16/564,872, filed on Sep. 9, 2019, abandoned.
Application 16/564,872 is a continuation in part of application No. 15/694,565, filed on Sep. 1, 2017, abandoned.
Claims priority of provisional application 62/728,604, filed on Sep. 7, 2018.
Claims priority of provisional application 62/393,409, filed on Sep. 12, 2016.
Claims priority of provisional application 62/533,851, filed on Jul. 18, 2017.
Prior Publication US 2024/0058891 A1, Feb. 22, 2024
Int. Cl. B23K 20/12 (2006.01); B32B 7/08 (2019.01); B32B 15/01 (2006.01); B23K 103/04 (2006.01); B23K 103/10 (2006.01); B23K 103/20 (2006.01)
CPC B23K 20/127 (2013.01) [B23K 20/1255 (2013.01); B32B 7/08 (2013.01); B32B 15/012 (2013.01); B23K 2103/04 (2018.08); B23K 2103/10 (2018.08); B23K 2103/20 (2018.08)] 16 Claims
OG exemplary drawing
 
1. A method, comprising:
bonding a first material within a groove of a second material using first friction stir welding, wherein a portion of the first material is then removed leaving at least a portion of the groove vacant;
placing a third material upon the second material and over the groove, wherein the second and third materials are materials of different composition having different melting points; and
using second friction stir welding to heat a mixture of the first material and the second material formed using the first friction stir welding to a temperature sufficient to plasticize and form a bond between the mixture of the first and second materials, and the third material.