In-process monitoring of powder bed additive manufacturing
US-2016339519-A1 · Nov 24, 2016 · US
Three dimensional printer
US2016144429A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016144429-A1 |
| Application number | US-201514919067-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 21, 2015 |
| Priority date | Nov 21, 2014 |
| Publication date | May 26, 2016 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
Provided is a lamination molding apparatus which can prevent the recoater head from being damaged when the recoater head clashes with an obstacle. Provided is a lamination molding apparatus including: a recoater head to form a material powder layer by moving in a chamber while supplying a material powder on a molding region and planarizing the material powder; wherein the recoater head is configured so as to be capable of being moved by a recoater head driving mechanism; the recoater head driving mechanism includes: a servo motor to move the recoater head; an encoder to detect a movement amount of the recoater head; and a controlling apparatus to control the servo motor in accordance with a value detected by the encoder; and the controlling apparatus is configured to place the servo motor in a non-control state when clashing of the recoater head with an obstacle is detected.
First claim
Opening claim text (preview).
What is claimed is: 1 . A lamination molding apparatus comprising: a chamber covering a desired molding region and being filled with an inert gas having a desired concentration; a recoater head to form a material powder layer by moving in the chamber while supplying a material powder on the molding region and planarizing the material powder; and a laser beam emitter to irradiate a laser beam to a predetermined portion of the material powder layer, thereby sintering the material powder at a position of irradiation to form a sintered layer; wherein the recoater head is configured so as to be capable of being moved by a recoater head driving mechanism; the recoater head driving mechanism comprises: a servo motor to move the recoater head; an encoder to detect a movement amount of the recoater head; and a controlling apparatus to control the servo motor in accordance with a value detected by the encoder; and the controlling apparatus is configured to place the servo motor in a non-control state when clashing of the recoater head with an obstacle is detected. 2 . The lamination molding apparatus of claim 1 , wherein the controlling apparatus is configured to place the servo motor in a control state after prescribed criterion for resuming is satisfied. 3 . The lamination molding apparatus of claim 1 , further comprising: a spindle head configured to be capable of moving in the chamber; wherein the controlling apparatus is configured to re-start forming of the material powder layer after removing the obstacle by using a rotary cutting tool equipped onto the spindle head. 4 . The lamination molding apparatus of claim 1 , further comprising: an electric current detector to detect an electric current supplied to the servo motor; wherein the controlling apparatus places the servo motor in the non-control state when the electric current exceeds a prescribed electric current value and determines that the clashing has occurred.
Assignees
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Classifications
of gas · CPC title
Means for process control, e.g. cameras or sensors · CPC title
Scanners · CPC title
for rotary motion · CPC title
of the atmosphere, e.g. composition or pressure in a building chamber · CPC title
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- What does patent US2016144429A1 cover?
- Provided is a lamination molding apparatus which can prevent the recoater head from being damaged when the recoater head clashes with an obstacle. Provided is a lamination molding apparatus including: a recoater head to form a material powder layer by moving in a chamber while supplying a material powder on a molding region and planarizing the material powder; wherein the recoater head is confi…
- Who is the assignee on this patent?
- Sodick Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B22F10/28. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu May 26 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).