US 11,873,562 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. 17/014,633.
Claims priority of application No. 19196156 (EP), filed on Sep. 9, 2019; application No. 19200051 (EP), filed on Sep. 27, 2019; application No. 19200059 (EP), filed on Sep. 27, 2019; and application No. 19201679 (EP), filed on Oct. 7, 2019.
Prior Publication US 2021/0069787 A1, Mar. 11, 2021
Int. Cl. C23C 24/10 (2006.01); B23K 26/342 (2014.01); B23K 26/144 (2014.01); B23K 26/00 (2014.01); C23C 4/134 (2016.01); C23C 4/18 (2006.01); C23C 4/123 (2016.01); B22F 3/10 (2006.01); B22F 10/28 (2021.01); B22F 12/00 (2021.01); B22F 12/55 (2021.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B22F 10/00 (2021.01); B22F 12/53 (2021.01); B22F 12/70 (2021.01); B22F 12/86 (2021.01)
CPC C23C 24/10 (2013.01) [B22F 3/1007 (2013.01); B22F 10/28 (2021.01); B22F 12/224 (2021.01); B22F 12/38 (2021.01); B22F 12/55 (2021.01); B23K 26/0006 (2013.01); B23K 26/0093 (2013.01); B23K 26/144 (2015.10); B23K 26/342 (2015.10); C23C 4/123 (2016.01); C23C 4/134 (2016.01); C23C 4/18 (2013.01); B22F 10/00 (2021.01); B22F 12/53 (2021.01); B22F 12/70 (2021.01); B22F 12/86 (2021.01); B22F 2201/50 (2013.01); B22F 2202/11 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 7 Claims
OG exemplary drawing
 
1. A coating device for metal-coating of at least one workpiece, comprising:
a housing, which surrounds a working space,
a retaining apparatus for retaining the at least one workpiece in the working space, the at least one workpiece is arranged vertically and includes first and second workpiece surfaces opposite one another,
first and second deposition apparatuses, the first deposition apparatus including a first deposition nozzle and the second deposition apparatus including a second deposition nozzle, the first and second deposition nozzles are configured to apply a metal powder to the respective first and second workpiece surfaces to be coated, and the first deposition apparatus includes a first laser and the second deposition apparatus includes a second laser for locally melting the metal powder on the respective first and second workpiece surfaces to form a coating,
at least one movement apparatus, by means of which the first and second deposition apparatuses can be moved relative to the respective first and second workpiece surfaces during the coating,
at least one air supply, and
at least one air discharge,
wherein
the at least one air supply is arranged in an upper region of the working space above the at least one workpiece and the at least one air discharge is arranged in a lower region of the working space below the at least one workpiece,
at least one suction apparatus is provided with at least one suction opening,
which is arranged adjacent to the at least one workpiece,
the first deposition apparatus and the second deposition apparatus are arranged opposite one another in the working space of the housing and are configured to simultaneously apply and melt the metal powder to the respective first and second workpiece surfaces to form the coating.