Plasma-treated sheets for additive manufacturing
AssigneeThe Boeing Company
InventorsNishant Kumar Sinha, Om Prakash
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Abstract
Illustrative examples of forming and using suitably adapted material in an additive manufacturing process includes operations of: exposing a first polymer sheet to a first plasma, such that an amine-functionalized sheet surface is formed; exposing a second polymer sheet to a second plasma, such that an epoxide-functionalized sheet surface is formed; and combining the amine-functionalized sheet and the epoxide-functionalized sheet, such that the amine-functionalized sheet surface contacts the epoxide-functionalized sheet surface. The workpiece is subsequently heated to form a structure, where heating of the workpiece causes covalent chemical bonds to form between the plasma-treated first polymer sheet and the plasma-treaded second polymer sheet.
Claims21
A three-dimensional part, comprising:
- a sintered plurality of sequential component layers comprising plasma-treated polymer powder;
- a first layer comprising a first substrate having a first side comprising an amine chemical moiety located on polymer powder surfaces of the first substrate;
- and
- a second layer comprising a second substrate having a second side comprising an epoxide chemical moiety located on polymer powder surfaces of the second substrate,
- wherein, the second side of the second substrate is covalently bonded by chemical reaction cross-linking through a first plurality of nitrogen atoms to the first side of the first substrate.
A three-dimensional part, comprising:
- a plurality of sequential component layers comprising plasma-treated polymer powder;
- a first layer comprising a first substrate having a first side comprising an amine chemical moiety located on polymer powder surfaces of the first substrate;
- and
- a second layer comprising a second substrate having a second side comprising an epoxide chemical moiety located on polymer powder surfaces of the second substrate,
- wherein, the second side of the second substrate is covalently bonded by chemical reaction cross-linking through a first plurality of nitrogen atoms to the first side of the first substrate.
A three-dimensional part, comprising:
- a plurality of sequential component layers;
- a first layer comprising a first substrate having a first side comprising an amine chemical moiety located on polymer powder surfaces of the first substrate;
- and
- a second layer comprising a second substrate having a second side comprising an epoxide chemical moiety located on polymer powder surfaces of the second substrate,
- wherein, the second side of the second substrate is covalently bonded by chemical reaction cross-linking through a first plurality of nitrogen atoms to the first side of the first substrate.
Dependencies are inferred from the claim text.