US 12,145,213 B2
Coating device and method for metal-coating of workpieces
Carlos Martin, Deggendorf (DE); and Roland Baier, Bad Abbach (DE)
Assigned to STURM MASCHINEN- & ANLAGENBAU GMBH, Salching (DE)
Filed by STURM MASCHINEN- & ANLAGENBAU GMBH, Salching (DE)
Filed on Sep. 8, 2020, as Appl. No. 17/014,917.
Claims priority of application No. 19196156 (EP), filed on Sep. 9, 2019; and application No. 19200059 (EP), filed on Sep. 27, 2019.
Prior Publication US 2021/0069830 A1, Mar. 11, 2021
Int. Cl. B23K 26/03 (2006.01); B05B 12/12 (2006.01); B05B 13/02 (2006.01); B05B 15/50 (2018.01); B22F 10/25 (2021.01); B22F 10/66 (2021.01); B22F 12/45 (2021.01); B22F 12/86 (2021.01); B22F 12/88 (2021.01); B22F 12/90 (2021.01); B23K 26/08 (2014.01); B23K 26/342 (2014.01); B23K 26/354 (2014.01); B22F 10/00 (2021.01); B22F 12/53 (2021.01); B23K 26/12 (2014.01)
CPC B23K 26/032 (2013.01) [B05B 12/12 (2013.01); B05B 13/0221 (2013.01); B05B 15/50 (2018.02); B22F 10/25 (2021.01); B22F 10/66 (2021.01); B22F 12/45 (2021.01); B22F 12/86 (2021.01); B22F 12/88 (2021.01); B22F 12/90 (2021.01); B23K 26/08 (2013.01); B23K 26/342 (2015.10); B23K 26/354 (2015.10); B22F 10/00 (2021.01); B22F 12/53 (2021.01); B23K 26/127 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A coating device for metal-coating of workpieces (5), comprising
a housing (21), which surrounds a working space (23),
a retaining apparatus (44) for retaining at least one workpiece (5) in the working space (23),
two deposition apparatuses (25), each comprising a deposition nozzle (26) for applying a metal powder to a workpiece surface (6) to be coated, and a laser for locally melting the metal powder on the workpiece surface (6) to form a coating, and
at least one movement apparatus (29) for moving the two deposition apparatuses relative to the workpiece surface (6) during the coating,
wherein the two deposition apparatuses (25) are arranged in the working space (23) of the housing (21), the two deposition apparatuses being designed to simultaneously apply and melt the metal powder,
wherein the two deposition apparatuses (25) are located opposite each other offset by 180 degrees about a center axis of the at least one workpiece (5) such that the nozzles (26) of the two deposition apparatuses (25) face each other for coating the at least one workpiece (5) on two disc-shaped or planar opposite workpiece surfaces (6),
wherein the at least one workpiece (5) is rotatably mounted on the retaining apparatus (44),
wherein each deposition apparatus (25) is movable relative to the workpiece surface (6) by the at least one movement apparatus (29) during coating, and
wherein the at least one movement apparatus (29) is disposed in part on the retaining apparatus (44) and has a motor for moving the at least one workpiece (5) during coating.