US 12,134,224 B2
Device and method for surface smoothing additively manufactured shaped parts consisting of plastic
Philipp Kramer, Munich (DE); and Felix Ewald, Munich (DE)
Assigned to DyeMansion GmbH, Planegg (DE)
Filed by DyeMansion GmbH, Planegg (DE)
Filed on Jul. 16, 2021, as Appl. No. 17/377,916.
Application 17/377,916 is a continuation of application No. PCT/EP2020/051282, filed on Jan. 20, 2020.
Claims priority of application No. 10 2019 101 351.8 (DE), filed on Jan. 18, 2019.
Prior Publication US 2021/0339459 A1, Nov. 4, 2021
Int. Cl. B29C 59/08 (2006.01); B33Y 40/20 (2020.01)
CPC B29C 59/08 (2013.01) [B33Y 40/20 (2020.01)] 11 Claims
OG exemplary drawing
 
1. A method for surface smoothing of an additively manufactured molded plastic part, the method comprising:
a heating step by means of which the molded part is heated to a predetermined temperature lower than the melting temperature of the plastic material of the molded part, and
an explosion step by means of which the surface of the molded part is smoothed in a process chamber by igniting a combustible process gas that is introduced into the process chamber, wherein the surface of the molded part is at least partially dissolved by the ignited process gas,
wherein the heating step is carried out prior to the explosion step.