Shot Brush Depowdering
AssigneeDesktop Metal, Inc.
InventorJonah Samuel Myerberg
Life of this patent
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Abstract
A method of de-powdering green parts manufactured via binder jetting additive manufacturing. First, a bulk de-powdering operation is conducted on the green part. Next, a fine de-powdering operation is conducted on the green part. The fine de-powdering operation includes disposing the green part within a bed of shot brush de-powdering media and agitating the bed of shot brush de-powdering media to remove from at least one surface of the green part an amount of build material powder.
Claims20
A method of de-powdering, comprising the steps of:
- disposing in a de-powdering area an additively manufactured green part having at least one surface contaminated with an amount of build material powder;
- and
- moving an amount of shot brush de-powdering media relative to and against the at least one surface of the additively manufactured green part to dislodge the build material powder.
A method of de-powdering, comprising the steps of:
- manufacturing a green part via binder jetting additive manufacturing;
- conducting a bulk de-powdering operation on the green part;
- conducting a fine de-powdering operation on the green part;
- wherein the fine de-powdering operation includes the steps of:
- disposing the green part within a bed of shot brush de-powdering media;
- agitating the bed of shot brush de-powdering media and thereby removing from at least one surface of the green part an amount of build material powder.
A system for de-powdering, comprising:
- a conveying system configured to traverse an additively manufactured green part contaminated by build material powder to a de-powdering area and submerge the green part in a shot brush de-powdering media;
- and
- an agitation system configured to agitate the shot brush de-powdering media to substantially remove the build material powder from the green part.
The system of claim wherein an average dimension of the shot brush de-powdering media is at least 0.5 mm.
Dependencies are inferred from the claim text.