3m Innovative Properties Company

Daniel D Oberpertinger

Malte Korten

Gioacchino Raia

Bastian P Kirchner

Anja Friedrich

Michael Jahns

Gallus Schechner

Christian A Richter

Andreas G Herrmann

Peter Bissinger

Joachim Zech

Helmar B Mayr

Martin Goetzinger

Henning Hoffmann

Rudolf Schmid

Wolfgang Weinmann

Peter U Osswald

Anja B Fischer

Hans R Schnagl

Karin Zanklmaier

Hendrick Grupp

Michaela Urban

Philipp Semmler

A method of making a physical object by additive manufacturing. The method has the steps of providing a light hardenable primary material (), building up the object () by successively hardening portions of the light hardenable primary material () by irradiating the portions with light, coating at least a part of the object () with a light permeable coating or oxygen protective material; and irradiating the coated object () with light and thereby post-hardening any light hardenable material ().

Method of making a physical object

A system () for washing a 3D-printed object (). The system () has a washing device () and a workpiece () that includes the 3D-printed object (). The washing device () has a container () that forms a process chamber () for receiving a liquid cleaning agent (), and the container () has an inlet () into the process chamber (). The workpiece () further has a support structure () that supports the 3D-printed object () and a base () supporting the support structure (). The base (), in a mating relationship with the inlet (), forms a restraint preventing the workpiece () from passing through the inlet () in a situation in which the workpiece () is placed with the 3D-printed object () located within the process chamber ().

System for washing a 3D-printed object

A method of making a physical object by additive manufacturing. In the method a hardenable primary material is provided, the object is built up by successively hardening layers of the hardenable primary material, and the object is cleaned from excess material by moving the object and thereby generating a mass inertial force in the excess material. The invention facilitates the making of objects by additive manufacturing.

Method of making a physical object by additive manufacturing

The invention relates to a radiation-curable silicone composition for additive-manufacturing technology comprising mercapto-functional polyorganosiloxane(s) as Component A, organosiloxane(s) with at least two aliphatic unsaturated carbon-carbon moieties as Component B, photo-initiator(s) as Component C for initiating a curing reaction between Component A and Component B, dye(s) as Component D, and at least one of the following as Component E: solvent being able to dissolve the dye(s); and/or surfactant(s) being able to dissolve the dye(s).

Radiation-curable composition containing mercapto-functional polyorganosiloxanes for additive-manufacturing technology

A method of making a dental article, has steps of (i) providing a layer of sinter powder, (ii) providing a solidifiable binder to form a circumferential fixation zone () which encloses a portion of the powder layer. The method further has the step of repeating steps (i) and (ii) with each fixation zone () of one layer being in contact with a fixation zone () of an adjacent layer such that a plurality of the fixation zones () together form a coherent hollow sleeve () extending across the layers. The corresponding plurality of powder portions in combination form a contiguous batch () of powder captured in the sleeve. The method facilitates the manufacturing of sintered dental articles.

Method of making a dental articles

The present invention relates to a method of producing a dental restoration from a partially-sintered or non-sintered blank using a three-dimensional dental restoration model, comprising the steps of: generating at least one or more first milling path for rough and/or fine milling; determining areas or zones of increased stress in the three-dimensional dental restoration model and generating at least one modified milling path; machining the blank by milling utilizing one or more first milling paths; selectively machining parts of the blank utilizing at least one modified milling path; and sintering the machined blank.

Method of producing a dental restoration

Growing community of inventors

Erling-Adecha, Germany

Daniel D Oberpertinger