Finishing mediums and finishing suspensions
AssigneePostProcess Technologies, Inc.
InventorsDaniel Joshua Hutchinson, Marc Farfaglia, Cassidy Grant
Life of this patent
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Abstract
Described are finishing mediums for removing support material and/or for surface finishing of objects made via additive manufacturing techniques. The finishing medium is an aqueous solution containing 1-20% by weight a polyol, 1-20% by weight an anti-corrosion agent, 0.001-10% by weight a hydrotrope. The finishing medium may optionally suspend media particles, thereby forming a finishing suspension. Also described are methods of using the finishing media and finishing suspensions described herein.
Claims19
A method of finishing an object made from an additive manufacturing technique (“AMT Object”) comprising, applying a finishing suspension to an AMT Object such that a portion of the AMT Object and/or support material or a portion thereof is removed, the finishing suspension having;
- media particles;
- and
- a finishing medium comprised of:
- 1-20% by weight a polyol,
- 0.001-10% by weight a hydrotrope, and
- water, wherein pressurized air is supplied to the finishing suspension through an orifice prior to a nozzle applying the finishing suspension to the AMT Object.
A method of finishing an object made from an additive manufacturing technique using a machine that applies a finishing suspension to the object, the method comprising:
- pumping the finishing suspension to a nozzle of the machine;
- spraying the finishing suspension from the nozzle;
- supplying pressurized air to the finishing suspension through an orifice prior to the nozzle in the machine;
- and
- directing the finishing suspension from the nozzle at the object,
- wherein the finishing suspension is comprised of a finishing medium and suspended solid media particles;
- and
- wherein the finishing medium is comprised of:
- 1-20% by weight a polyol;
- 1-20% by weight an anti-corrosion agent;
- 0.001-10% by weight a hydrotrope;
- and
- water.
Dependencies are inferred from the claim text.