US 12,290,873 B2
Friction stir additive method and machine
Timothy John Haynie, Union, MI (US); and John A. Bosker, South Bend, IN (US)
Assigned to BOND TECHNOLOGIES, INC., Elkhart, IN (US)
Filed by BOND TECHNOLOGIES, INC., Elkhart, IN (US)
Filed on May 5, 2023, as Appl. No. 18/313,118.
Claims priority of provisional application 63/364,272, filed on May 6, 2022.
Prior Publication US 2023/0356322 A1, Nov. 9, 2023
Int. Cl. B23K 20/12 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC B23K 20/1215 (2013.01) [B23K 20/1235 (2013.01); B23K 20/125 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 8 Claims
OG exemplary drawing
 
1. A friction stir deposition machine for building a layer upon a substrate comprising:
a guide tube having a chamber extending axially within said guide tube and having an open end for facing said substrate, said chamber for receiving a rod of feedstock material therein;
a stationary tool having a fixed shoulder located thereon, said fixed shoulder being fixed from rotation with respect to said substrate, said fixed shoulder having an opening therein and said opening in said fixed shoulder circumscribing said open end of said chamber, said stationary tool having an inner surface and said inner surface being internal to said stationary tool, said guide tube being rotatable within said stationary tool, said stationary tool including an inlet for receiving cooling fluid to be directed into a first annular manifold circumscribing said guide tube, said guide tube including a first hole located within said first annular manifold and rotatable with respect to said first annular manifold, said stationary tool including an outlet for directing said cooling fluid from a second annular manifold circumscribing said guide tube, said guide tube including a second hole located within said second annular manifold and rotatable with respect to said second annular manifold, said first hole in said guide tube in fluid communication with said second hole in said guide tube to facilitate flow of said cooling fluid through said guide tube, wherein said first hole is connected to a first axial passage and said second hole is connected to a second axial passage and said first and second axial passes for facilitating fluid flow between said first and second holes in said guide tube, said first and second axial passages being diametrically oppositely located within said guide tube; and
a motor connected to said guide tube for rotating said guide tube with respect to said fixed shoulder and said rod of feedstock rotating with said guide tube so that said rod of feedstock rotates with respect to said substrate.