IP Library Granted Patent US 11,254,031
Granted Patent B2
US 11,254,031 · App. 16/084,644 · Granted Feb 22, 2022

Additive manufacturing device and system for manufacturing a sacrificial mould for creating an object

Inventors: Jon Jessen (Veksø, DK); Lasse Guldborg Staal (Jyllinge, DK)
Assignee: Addifab ApS
B29C33/3842B29C33/00B29C33/52B29C64/10B29C64/165B29C64/245B29C64/40B33Y10/00B33Y30/00B33Y80/00H04R25/658
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,254,031
App. No.
16/084,644
Granted
Feb 22, 2022
Kind
B2
Abstract

An additive manufacturing device for manufacturing a mould. The additive manufacturing device includes a container for providing at least one mould material, a build platform having a build surface for holding and/or supporting at least one mould being or having been manufactured by an additive manufacturing process, a source for providing energy to selectively activate and subsequently solidify the at least one mould material in or from the container to enable additive manufacturing of the mould, and an electronic controller adapted to selectively control the source to manufacture the mould as a one-piece sacrificial mould according to a predetermined design producing a one-piece additively manufactured mould.

Claims (78)

1. An additive manufacturing device for manufacturing a mould, wherein the additive manufacturing device comprises

a container for providing at least one mould material,

a build platform having a build surface to hold and/or support at least one mould being or having been manufactured by an additive manufacturing process,

a source for providing energy to selectively activate the at least one mould material in or from the container to enable additive manufacturing of the mould, and

an electronic controller adapted to selectively control the source to manufacture the mould as a one-piece sacrificial mould according to a predetermined design producing a one-piece sacrificial additively manufactured mould comprising

one or more outer shells circumscribing and enclosing a first inner volume,

at least one inlet being connected to the first inner volume and being adapted to receive at least one building material,

at least one outlet being connected to the first inner volume and being adapted to release air from the first inner volume when the first inner volume receives the at least one building material via the at least one inlet, and

one or more securing elements extending away from and/or into the build platform and configured to be mechanically connected with and released from a transportation mechanism to move the build platform into and/or out from the additive manufacturing device by the transportation mechanism that is external to the build platform,

the build platform and/or the one or more securing elements further comprising a number of guiding elements and/or a number of guiding cavities facilitating proper placement of the build platform in the external transportation mechanism, and

wherein the at least one mould material is composed of one or more predetermined dissolvable materials whereby a one-piece sacrificial additively manufactured mould manufactured from the at least one mould material is dissolved.

2. The additive manufacturing device according to claim 1 , wherein the one-piece sacrificial additively manufactured mould is an injection moulding mould for moulding an object using injection moulding.

3. The additive manufacturing device according to claim 1 , wherein the at least one mould material consists of one or more predetermined dissolvable materials whereby a one-piece sacrificial additively manufactured mould manufactured from the at least one mould material is dissolved when being exposed to a predetermined dissolving agent before or during a debinding and/or sintering process.

4. The additive manufacturing device according to claim 1 , wherein the external transportation mechanism is configured to automatically load

the build platform into the additive manufacturing device prior to, and in preparation of, commencement of additive manufacturing, and/or

the one-piece sacrificial additively manufactured mould or the build platform comprising the one-piece sacrificial additively manufactured mould into and/or out of the additive manufacturing device.

5. The additive manufacturing device according to claim 1 , wherein the transportation mechanism is external to the additive manufacturing device.

6. A moulding system for moulding an object using a one-piece sacrificial additively manufactured mould manufactured by an additive manufacturing device according to claim 1 , wherein the moulding system

comprises or is coupled to at least one moulding reservoir or container comprising a building material,

is adapted to introduce building material directly or indirectly from the at least one moulding reservoir or container into the one-piece sacrificial additively manufactured mould, and

is adapted to actively or passively solidify the introduced building material thereby producing an object as defined by the one-piece sacrificial additively manufactured mould, and

wherein the one-piece sacrificial additively manufactured mould is

an injection mould and the moulding system is or comprises an injection moulding device, and wherein the building material comprises one or more of

one or more silicone or other rubbers, and/or

one or more thermoplastic elastomers, and/or

one or more thermosetting compounds, and/or

one or more polyacetal binders, and/or

one or more organic binders, and/or

one or more filler materials such as ceramic powder or particles, metallic powder or particles, glass powder or particles, glass beads, or glass fibres, carbon black or carbon powder or particles, nanotubes, and/or re-used or re-cycled plastic and/or resin powder.

7. The moulding system according to claim 6 , wherein the moulding system comprises one or more actuators and one or more controller systems and/or one or more mechanical orientation elements that are configured to position the build platform and/or an element for introducing the building material into the one-piece sacrificial additively manufactured mould relative to each other to permit the introduction of the building material into the one-piece sacrificial additively manufactured mould.

8. A post-processing moulding system, wherein the post-processing moulding system is adapted to receive a one-piece sacrificial additively manufactured mould manufactured by an additive manufacturing device according to claim 1 ,

the system comprising a moulded object moulded by a moulding system that

comprises or is coupled to at least one moulding reservoir or container comprising at least one building material,

is adapted to introduce building material directly or indirectly from the at least one moulding reservoir or container into the one-piece sacrificial additively manufactured mould, and

is adapted to actively or passively solidify the introduced building material thereby producing an object as defined by the one-piece sacrificial additively manufactured mould, and

wherein the one-piece sacrificial additively manufactured mould is

an injection mould and the moulding system is or comprises an injection moulding device, and wherein the building material comprises one or more of

one or more silicone or other rubbers, and/or

one or more thermoplastic elastomers, and/or

one or more thermosetting compounds, and/or

one or more polyacetal binders, and/or

one or more organic binders, and/or

one or more filler materials including ceramic powder or particles, metallic powder or particles, glass powder or particles, glass beads, or glass fibres, carbon black or carbon powder or particles, nanotubes, and/or re-used or re-cycled plastic and/or resin powder;

or wherein the system is adapted to promote or control a post-curing and/or setting of the moulded object, and wherein the post-processing moulding system further comprises a release element adapted to release the moulded object from the one-piece sacrificial additively manufactured mould.

9. The post-processing moulding system according to claim 8 , wherein the one-piece sacrificial additively manufactured mould consists of dissolvable material and the release element is adapted to

apply a dissolving agent to the one-piece sacrificial additively manufactured mould to enable the release of the moulded object from the one-piece sacrificial additively manufactured mould.

10. The post-processing moulding system according to claim 8 , wherein the release element is adapted to

apply a temperature within a predetermined range or above a predetermined temperature threshold to the one-piece sacrificial additively manufactured mould to promote the release of the moulded object from the one-piece sacrificial additively manufactured mould, and/or

apply a temperature within a predetermined range or below a predetermined temperature threshold to the one-piece sacrificial additively manufactured mould thereby enabling the release of the moulded object from the one-piece sacrificial additively manufactured mould.

11. A manufacturing system for manufacturing an object using a mould, the manufacturing system comprising:

an additive manufacturing device according to claim 1 ;

the manufacturing system comprising a moulding system, wherein the moulding system

comprises or is coupled to at least one moulding reservoir or container comprising at least one building material,

is adapted to introduce building material directly or indirectly from the at least one moulding reservoir or container into the one-piece sacrificial additively manufactured mould, and

is adapted to actively or passively solidify the introduced building material thereby producing an object as defined by the one-piece sacrificial additively manufactured mould, and

wherein the one-piece sacrificial additively manufactured mould is

an injection mould and the moulding system is or comprises an injection moulding device, and wherein the building material comprises one or more of

one or more silicone or other rubbers, and/or

one or more thermoplastic elastomers, and/or

one or more thermosetting compounds, and/or

one or more polyacetal binders, and/or

one or more organic binders, and/or

one or more filler materials including ceramic powder or particles, metallic powder or particles, glass powder or particles, glass beads, or glass fibres, carbon black or carbon powder or particles, nanotubes, and/or re-used or re-cycled plastic and/or resin powder;

or the manufacturing system comprising a post-processing moulding system according to claim 8 .

12. A method of manufacturing a mould using an additive manufacturing device according to claim 1 , wherein method comprises

controlling energy to of source to selectively activate, and if required subsequently solidify, the at least one mould material to additively manufacture the mould on a build platform as a one-piece sacrificial additively manufactured mould according to a predetermined design; and

wherein the manufactured one-piece sacrificial additively manufactured mould comprises

one or more outer shells circumscribing and enclosing at least a first inner volume,

at least one inlet being connected to the first inner volume and being adapted to receive at least one building material,

at least one outlet being connected to the first inner volume and being adapted to release air from the first inner volume when the first inner volume receives the at least one building material via the at least one inlet.

13. The method according to claim 12 , wherein the method further comprises moulding an object using the one-piece sacrificial additively manufactured mould and at least one building material by introducing the building material directly or indirectly from at least one moulding reservoir or container into the one-piece sacrificial additively manufactured mould thereby producing an object as defined by the one-piece sacrificial additively manufactured mould.

14. The method according to claim 12 , wherein the method comprises

producing at least one one-piece sacrificial additively manufactured mould on the build platform with the additive manufacturing system,

subsequently moving the build platform and/or the at least one one-piece sacrificial additively manufactured mould to a moulding system,

subsequently producing at least one object at the moulding system using the at least one one-piece sacrificial additively manufactured mould.

15. The method according to claim 14 , wherein the method further comprises the step of automatically moving a build platform into the additive manufacturing system by the external transportation mechanism and/or another transport mechanism before producing the at least one one-piece sacrificial additively manufactured mould on the build platform with the additive manufacturing system.

16. The method according to claim 14 , wherein the moulding system is an injection moulding system and wherein one one-piece sacrificial additively manufactured mould has been manufactured with a shape where at least a part of it matingly fits in the injection moulding system at a moulding location.

17. The method according to claim 14 , wherein at least one produced object is automatically moved by the external transportation mechanism together with the at least one-piece sacrificial additively manufactured mould, to a post-processing system.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 17, 2025
From: NEXA3D INC.; NXT FACTORY, INC.
To: STRATASYS, INC.
Reel/Frame 071657/0111 →
RELEASE OF SECURITY INTEREST Recorded Jun 10, 2025
From: U.S. BANK TRUST COMPANY
To: NEXA3D INC.; NXT FACTORY INC.; NEXA3D APS
Reel/Frame 071534/0581 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 15, 2025
From: NEXA3D APS
To: NEXA3D INC.
Reel/Frame 070523/0210 →
SECURITY INTEREST Recorded Nov 15, 2024
From: NEXA3D INC.; NXT FACTORY INC.; NEXA3D APS
To: U.S. BANK TRUST COMPANY
Reel/Frame 069381/0694 →
CHANGE OF NAME Recorded Oct 9, 2023
From: ADDIFAB APS
To: NEXA3D APS
Reel/Frame 065182/0878 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2018
From: JESSEN, JON; STAAL, LASSE GULDBORG
To: ADDIFAB APS
Reel/Frame 047781/0001 →
Cited By (1)
US 12,275,206