3d printing method and powder mixture for 3d printing

Patent metadata

Field	Value
Publication number	US-2016256926-A1
Application number	US-201615060966-A
Country	US
Kind code	A1
Filing date	Mar 4, 2016
Priority date	Mar 4, 2015
Publication date	Sep 8, 2016
Grant date	—

Abstract

A 3D printing method includes mixing a sintered component which is selected from the group comprising ceramic materials, ceramic material combinations, metal materials, metal material combinations and metal alloys, with at least one surface coating component which is selected from the group comprising boron nitride, graphene, carbon nanotubes, tungsten sulfide, tungsten carbide, molybdenum sulfide, molybdenum carbide, calcium fluoride, caesium molybdenum oxide sulfide, titanium silicon carbide and cerium fluoride, in a powder mixture; and laser sintering or laser melting the powder mixture in a selective laser sintering method or a selective laser melting method.

First claim

What is claimed is:

1 . A 3D printing method comprising:
mixing a sintered component, which is selected from the group comprising ceramic materials, ceramic material combinations, metal materials, metal material combinations and metal alloys, with at least one surface coating component which is selected from the group comprising boron nitride, graphene, carbon nanotubes, tungsten sulfide, tungsten carbide, molybdenum sulfide, molybdenum carbide, calcium fluoride, caesium molybdenum oxide sulfide, titanium silicon carbide and cerium fluoride, in a powder mixture; and laser sintering or laser melting the powder mixture in a selective laser sintering method or a selective laser melting method.

2 . The 3D printing method according to claim 1 , wherein laser sintering or laser melting is carried out in a shielding gas atmosphere.

3 . The 3D printing method according to claim 2 , wherein the shielding gas of the shielding gas atmosphere comprises a surface coating component which is selected from the group comprising boron nitride, graphene, carbon nanotubes, tungsten sulfide, tungsten carbide, molybdenum sulfide, molybdenum carbide, calcium fluoride, caesium molybdenum oxide sulfide, titanium silicon carbide and cerium fluoride.

4 . The 3D printing method according to claim 1 , wherein the sintered component is selected from the group comprising gold, platinum, palladium, nickel, chromium, iron, aluminum, molybdenum, beryllium, copper, magnesium, cobalt, tin or an alloy thereof.

5 . A 3D printing method comprising:
generating a shielding gas atmosphere in a 3D printing device, wherein the shielding gas of the shielding gas atmosphere comprises a surface coating component which is selected from the group comprising boron nitride, graphene, carbon nanotubes, tungsten sulfide, tungsten carbide, molybdenum sulfide, molybdenum carbide, calcium fluoride, caesium molybdenum oxide sulfide, titanium silicon carbide and cerium fluoride; and laser sintering or laser melting a powder mixture in a selective laser sintering method or a selective laser melting method, wherein the powder mixture comprises a sintered component which is selected from the group comprising ceramic materials, ceramic material combinations, metal materials, metal material combinations and metal alloys.

6 . The 3D printing method according to claim 5 , wherein the powder mixture comprises at least one surface coating component which is selected from the group comprising boron nitride, graphene, carbon nanotubes, tungsten sulfide, tungsten carbide, molybdenum sulfide, molybdenum carbide, calcium fluoride, caesium molybdenum oxide sulfide, titanium silicon carbide and cerium fluoride.

7 . The 3D printing method according to claim 5 , wherein the sintered component is selected from the group comprising gold, platinum, palladium, nickel, chromium, iron, aluminum, molybdenum, beryllium, copper, magnesium, cobalt, tin or an alloy thereof.

8 . A 3D printing method comprising:
locally injecting a plasma at a working region of a 3D printing device, wherein the plasma comprises a surface coating component which is selected from the group comprising boron nitride, graphene, carbon nanotubes, tungsten sulfide, tungsten carbide, molybdenum sulfide, molybdenum carbide, calcium fluoride, caesium molybdenum oxide sulfide, titanium silicon carbide and cerium fluoride; and laser sintering or laser melting a powder mixture in a selective laser sintering method or a selective laser melting method in the working region of the 3D printing device, wherein the powder mixture comprises a sintered component which is selected from the group comprising ceramic materials, ceramic material combinations, metal materials, metal material combinations and metal alloys.

9 . The 3D printing method according to claim 8 , wherein the sintered component is selected from the group comprising gold, platinum, palladium, nickel, chromium, iron, aluminum, molybdenum, beryllium, copper, magnesium, cobalt, tin or an alloy thereof.

10 . A powder mixture for use in a 3D printing method, comprising:
a sintered component which is selected from the group comprising ceramic materials, ceramic material combinations, metal materials, metal material combinations and metal alloys; and at least one surface coating component which is selected from the group comprising boron nitride, graphene, carbon nanotubes, tungsten sulfide, tungsten carbide, molybdenum sulfide, molybdenum carbide, calcium fluoride, caesium molybdenum oxide sulfide, titanium silicon carbide and cerium fluoride.

11 . The powder mixture according to claim 10 , wherein the sintered component is selected from the group comprising gold, platinum, palladium, nickel, chromium, iron, aluminum, molybdenum, beryllium, copper, magnesium, cobalt, tin or an alloy thereof.

Assignees

• Airbus Operations Gmbh

Inventors

• Ruppert Bernd

Classifications

• B22F1/16

  Metallic particles coated with a non-metal (coated with lubricating or binding agents or with organic material B22F1/10) · CPC title

• B22F12/55

  Two or more means for feeding material · CPC title

• B22F10/32

  of the atmosphere, e.g. composition or pressure in a building chamber · CPC title

• B22F10/28

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

• C04B35/622 Primary

  Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products · CPC title