Patent · US Active

Method of treating at least part of the surface of a 3D-printed article

US10300660B2 · kind B2 · utility

1Cited by

1References

14Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Dirk Achten · Leverkusen, DE
Thomas Büsgen · Leverkusen, DE
Roland Wagner · Feldkirchen-Westerham, DE
Bettina Mettmann · Dormagen, DE
Levent Akbas · Witten, DE
Julien Guiu · Düsseldorf, DE

Key dates

Filing date	Oct 24, 2017
Grant date	May 28, 2019
Priority date	—
Expiry date	Oct 24, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2995/007
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method of treating at least part of a surface (110) of an article (100) in which an article (100) is treated, at least part of a surface (110, 111) of the article having been produced by an additive manufacturing method from a construction material, and the construction material provides a temperature TG′ at which the storage modulus G′ of the construction material (determined by dynamic-mechanical analysis according to ISO 6721 at a shear rate of 1/s) is 10 MPa. The article is preferably placed into an evacuable volume and the volume is evacuated. By heating and exerting pressure, the surface is plastically deformed and can be smoothed thereby.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.