Hybrid support systems and methods of generating a hybrid support system using three dimensional printing

Patent metadata

Field	Value
Publication number	US-10384263-B2
Application number	US-201514921815-A
Country	US
Kind code	B2
Filing date	Oct 23, 2015
Priority date	Apr 26, 2013
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

This disclosure relates to a hybrid support system for supporting an object formed by three dimensional printing. In some embodiments, a hybrid support system includes one or more volume support structures, a first volume support structure of the one or more volume support structures being coupled to a base plate and to a first portion of the object. The hybrid support system further includes a partially solidified support structure coupled to a second portion of the object. The hybrid support system further includes one or more reinforcement support structures, a first reinforcement support structure of the one or more reinforcement support structures being coupled to the base plate and to at least one of a portion of the partially solidified support structure and a third portion of the object.

First claim

What is claimed is:

1. A hybrid support system for supporting an object formed from a metal powder material by three dimensional printing, comprising:
one or more volume support structures formed from the metal powder material, a first volume support structure of the one or more volume support structures having a first strength and being coupled to both a base plate and to a first portion of the object, wherein the first volume support structure is configured to counteract thermal stress forces in the object;
a partially solidified support structure formed from the metal powder material and coupled to a second portion of the object, the partially solidified support structure having a second strength less than the first strength, wherein the partially solidified support structure is configured to act as a heat sink for dissipating heat from an energy source away from the second portion of the object; and
one or more reinforcement support structures, a first reinforcement support structure of the one or more reinforcement support structures formed from the metal powder material and coupled to the base plate and to the partially solidified support structure, the reinforcement structure configured to support the partially solidified support structure,
wherein the first reinforcement support structure passes through a portion of the partially solidified support structure.

2. The hybrid support system of claim 1 , wherein the one or more volume support structures, the partially solidified support structure, and the one or more reinforcement support structures are generated as the object is formed.

3. The hybrid support system of claim 1 , wherein at least one of the one or more volume support structures is configured to prevent the object from deforming.

4. The hybrid support system of claim 1 , wherein the first portion of the object for which the first volume support structure is coupled is determined based on a thermo-mechanical property of the first portion of the object.

5. The hybrid support system of claim 1 , wherein the reinforcement structure is further configured to support a third portion of the object.

6. The hybrid support system of claim 5 , wherein the object comprises a plurality of layers, and wherein the second portion of the object to which the partially solidified support structure is coupled includes a subset of the plurality of layers.

7. The hybrid support system of claim 1 , wherein the first reinforcement support structure is coupled to at least one of the portion of the partially solidified support structure and a third portion of the object, and wherein said coupling is for providing reinforcement and heat dissipation for the object.

8. The hybrid support system of claim 7 , wherein the at least one of the portion of the partially solidified support structure and the third portion of the object for which the first reinforcement support structure is coupled is located at an overhang portion of the object.

9. The hybrid support system of claim 1 , wherein each of the one or more reinforcement support structures is thinner than each of the one or more volume support structures.

10. The hybrid support system of claim 1 , wherein the first reinforcement support structure is a tree-shaped reinforcement support structure having a trunk portion and branches, and wherein the trunk portion is coupled to the base plate, and wherein the branches are coupled to the partially solidified support structure.

11. The hybrid support system of claim 10 , wherein the first volume support structure further comprises a plurality of jagged structures extending upward toward the object and a plurality of jagged structures extending downward toward the tree-shaped reinforcement support structure, wherein the jagged structures extending upward are configured to contact the object, and wherein the jagged structures extending downward are configured to contact the tree-shaped reinforcement support structure, and wherein the hybrid support system further comprises an offset structure between the first volume support structure and the tree-shaped reinforcement support structure.

Assignees

• Mat Nv

Inventors

• Craeghs Tom
• Eggers Gerald
• Cluckers Tom

Classifications

• B29C64/135 Primary

  the energy source being concentrated, e.g. scanning lasers or focused light sources · CPC title

• B22F10/47

  characterised by structural features · CPC title

• B22F10/366

  Scanning parameters, e.g. hatch distance or scanning strategy · CPC title

• B22F10/28

  Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] · CPC title

• B22F10/36

  of energy beam parameters · CPC title