Formation of three dimentional objects including magnetic material

Patent metadata

Field	Value
Publication number	US-10710296-B2
Application number	US-201515543946-A
Country	US
Kind code	B2
Filing date	Jan 16, 2015
Priority date	Jan 16, 2015
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

Implementations described herein are directed to forming objects including one or more layers of a polymeric material that include a magnetic material. The objects can be produced by forming one or more first layers that include a first polymeric material. The one or more first layers can be free of a magnetic material. Additionally, the object can be produced by forming one or more second layers that include a second polymeric material having a magnetic material. For example, the one or more second layers can include a polymeric material embedded with magnetic particles. The one or more first layers and the one or more second layers can be formed by extruding the first polymeric material and the second polymeric material onto a substrate according to a pattern. A magnetizing device can be used to magnetize the magnetic material included in the one or more second layers.

First claim

The invention claimed is:

1. An article comprising:
a plurality of layers of a first polymeric material; and
at least one layer of a second polymeric material comprising a magnetic material, wherein the at least one layer of the second polymeric material is disposed on at least one layer of the first polymeric material, and wherein particles of the magnetic material in the at least one layer of the second polymeric material is magnetically aligned, after the disposition, by a pair of magnetic plates with opposing polarities.

2. The article of claim 1 , wherein:
the magnetic material includes neodymium particles having a particle size less than 100 micrometers;
a layer of the plurality of layers of the first polymeric material has a thickness of no greater than about 100 micrometers; and
the at least one layer of the second polymeric material has a thickness of no greater than about 100 micrometers.

3. The article of claim 1 , wherein:
the magnetic material includes a first plurality of particles having a first polarity and a second plurality of particles having a second polarity; and
the first plurality of particles are disposed adjacent to the second plurality of particles in a direction substantially parallel to a horizontal plane of the object.

4. The article of claim 1 , wherein:
the magnetic material includes a first plurality of particles having a first polarity and a second plurality of particles having a second polarity; and
the first plurality of particles are disposed adjacent to the second plurality of particles in a direction substantially perpendicular to a horizontal plane of the object.

5. The article of claim 2 , wherein:
the magnetic material includes a first plurality of particles having a first polarity and a second plurality of particles having a second polarity; and
the first plurality of particles are disposed adjacent to the second plurality of particles in a direction substantially parallel to a horizontal plane of the object.

6. The article of claim 2 , wherein:
the magnetic material includes a first plurality of particles having a first polarity and a second plurality of particles having a second polarity; and
the first plurality of particles are disposed adjacent to the second plurality of particles in a direction substantially perpendicular to a horizontal plane of the object.

7. The article of claim 1 , wherein:
the magnetic material comprises one or more of:
Neodymium;
Boron; and
Iron.

8. The article of claim 1 , wherein:
the magnetic material is in a range between 1% by volume and 5% by volume of a total volume of the second polymeric material.

9. The article of claim 1 , wherein:
the magnetic material is in a range between 2% by volume and 10% by volume of a total volume of the second polymeric material.

10. The article of claim 1 , wherein:
the magnetic material is in a range between 8% by volume and 20% by volume of a total volume of the second polymeric material.

11. The article of claim 1 , wherein:
the magnetic material is in a range between 15% by volume and 30% by volume of a total volume of the second polymeric material.

12. The article of claim 1 , wherein:
the particles of the magnetic material comprise:
a first portion of the particles being arranged in a first direction having a first polarity; and
a second portion of the particles being arranged in a second direction having a second polarity, wherein the second direction is opposite to the first direction.

13. The article of claim 1 , wherein:
the particles of the magnetic material comprise:
a first portion of the particles being arranged in a first direction having a first polarity; and
a second portion of the particles being arranged in a second direction having a second polarity, wherein the second polarity is a south pole and the first polarity is a north pole.

14. The article of claim 2 , wherein:
the magnetic material comprises one or more of:
Neodymium;
Boron; and
Iron.

15. The article of claim 2 , wherein:
the magnetic material is in a range between 1% by volume and 5% by volume of a total volume of the second polymeric material.

16. The article of claim 2 , wherein:
the magnetic material is in a range between 2% by volume and 10% by volume of a total volume of the second polymeric material.

17. The article of claim 2 , wherein:
the magnetic material is in a range between 8% by volume and 20% by volume of a total volume of the second polymeric material.

18. The article of claim 2 , wherein:
the magnetic material is in a range between 15% by volume and 30% by volume of a total volume of the second polymeric material.

19. The article of claim 2 , wherein:
the particles of the magnetic material comprise:
a first portion of the particles being arranged in a first direction having a first polarity; and
a second portion of the particles being arranged in a second direction having a second polarity, wherein the second direction is opposite to the first direction.

20. The article of claim 2 , wherein:
the particles of the magnetic material comprise:
a first portion of the particles being arranged in a first direction having a first polarity; and
a second portion of the particles being arranged in a second direction having a second polarity, wherein the second polarity is a south pole and the first polarity is a north pole.

Assignees

• Microsoft Technology Licensing Llc

Inventors

• Fukumoto Masaaki
• Ogata Masayasu

Classifications

• B33Y40/00

  Auxiliary operations or equipment, e.g. for material handling · CPC title

• B33Y70/00 Primary

  Materials specially adapted for additive manufacturing · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• B29K2055/02

  ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers · CPC title

• B29C48/022

  characterised by the choice of material · CPC title