US 12,358,219 B2
Device and method for the deposition of a material layer on a surface area of a workpiece
Arne Roos, Hamburg (DE); Luciano Bergmann, Geesthacht (DE); Jorge Fernandez Dos Santos, Tespe (DE); and Henry Loitz, Hamburg (DE)
Assigned to Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH, Geesthacht (DE)
Filed by Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH, Geesthacht (DE)
Filed on Oct. 7, 2020, as Appl. No. 17/064,897.
Claims priority of application No. 19209603 (EP), filed on Nov. 15, 2019.
Prior Publication US 2021/0146615 A1, May 20, 2021
Int. Cl. B23K 20/00 (2006.01); B23K 20/12 (2006.01); B29C 64/209 (2017.01); B29C 64/321 (2017.01); B33Y 30/00 (2015.01)
CPC B29C 64/209 (2017.08) [B23K 20/1215 (2013.01); B23K 20/122 (2013.01); B29C 64/321 (2017.08); B33Y 30/00 (2014.12)] 13 Claims
OG exemplary drawing
 
1. A device for the deposition of a material layer on a surface area of a workpiece, the device comprising:
a holding facility for receiving the workpiece,
a deposition facility,
wherein the deposition facility and the holding facility can be moved relative to one another,
wherein the holding facility is designed such that the workpiece is held on the holding facility so that the surface area of the workpiece points to the deposition facility,
wherein the deposition facility comprises a base,
wherein the deposition facility comprises a hollow shoulder driven in a rotating manner about a longitudinal axis relative to the base,
wherein the hollow shoulder comprises an indentation pointing towards a workpiece plane perpendicular to the longitudinal axis, said indentation being limited by a circumferential annular face about the longitudinal axis,
wherein the hollow shoulder is equipped with a passage opening running along the longitudinal axis, the diameter of which is smaller than that of the indentation,
wherein the deposition facility comprises a feed facility for deposition material, which is arranged on the side of the hollow shoulder facing away from the workpiece plane such that deposition material can be introduced from the feed facility through the passage opening into the indentation,
wherein deposition material introduced into the indentation is continuously supplied with frictional energy by rotation of the hollow shoulder, due to the friction between the hollow shoulder and the deposition material, so that the deposition material is plasticized in the indentation, and
wherein the deposition facility and the holding facility can be moved relative to one another in such a manner that, during the relative movement, the workpiece plane runs tangentially to the surface area of a workpiece held on the holding facility at a point at which the longitudinal axis intersects the surface area of the workpiece.