JP2017030223A - 三次元形状造形物の製造方法および三次元形状造形物 - Google Patents
三次元形状造形物の製造方法および三次元形状造形物 Download PDFInfo
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Abstract
Description
(i)粉末層の所定箇所に光ビームを照射し、かかる所定箇所の粉末を焼結又は溶融固化させて固化層を形成する工程。
(ii)得られた固化層の上に新たな粉末層を形成し、同様に光ビームを照射して更なる固化層を形成する工程。
(i)粉末層の所定箇所に光ビームを照射して該所定箇所の粉末を焼結又は溶融固化させて固化層を形成する工程、および
(ii)得られた固化層の上に新たな粉末層を形成し、該新たな粉末層の所定箇所に光ビームを照射して更なる固化層を形成する工程
によって粉末層形成および固化層形成を交互に繰り返し行い三次元形状造形物を製造する方法であって、
三次元形状造形物の製造において、加温源要素を三次元形状造形物の内部に設けると共に、三次元形状造形物の表面を凹凸状に形成し、また、
加温源要素の主面と凹凸状の表面とを互いに同一形状にすることを特徴とする、三次元形状造形物の製造方法が提供される。
三次元形状造形物の表面が凹凸状を有し、加温源要素の主面と凹凸状の表面とが互いに同一形状になっていることを特徴とする三次元形状造形物も提供される。
まず、本発明の製造方法の前提となる粉末焼結積層法について説明する。特に粉末焼結積層法において三次元形状造形物の切削処理を付加的に行う光造形複合加工を例として挙げる。図11は、光造形複合加工のプロセス態様を模式的に示しており、図12および図13は、粉末焼結積層法と切削処理とを実施できる光造形複合加工機1の主たる構成および動作のフローチャートをそれぞれ示している。
本発明の製造方法は、上述した粉末焼結積層法のうち、固化層の積層化に関連した態様に特徴を有している。
本発明の一実施形態に係る製造方法では、図5に示すように、三次元形状造形物100の内部において加温源要素12の周囲に断熱ポーラス領域14を形成してよい。
[式1]
本発明の一実施形態に係る製造方法では、図6に示すように、三次元形状造形物100の内部において加温源要素12の主面12A上に加温源要素保護部材16を設けてよい。特に加温源要素12としてヒータが用いられる場合、その発熱面上に加温源要素保護部材16が設けられることが好ましい。
本発明の一実施形態に係る製造方法では、図7に示すように、三次元形状造形物100の内部において加温源要素12の主面12Aと三次元形状造形物100の表面100Aとの間に相当する領域に伝熱部材18を設けてよい。
本発明の一実施形態に係る製造方法では、粉末焼結積層法以外の手法を組み合わせて固化層形成を行ってよい。つまり、粉末焼結積層法とそれ以外の固化層形成手法と組み合わせたハイブリッド方式で固化層形成を実施してよい。
本発明の三次元形状造形物は上述の製造方法で得られるものである。従って、本発明の三次元形状造形物は、粉末層に対する光ビーム照射で形成される固化層が積層して構成されている。図1に示されるように、本発明の三次元形状造形物100は、その表面100Aが凹凸状を有し、加温源要素12の主面12Aと凹凸状の表面100Aとが互いに同一形状になっている特徴を有する。かかる特徴に起因して、より適した加温特性が呈され、特に三次元形状造形物を金型として使用した場合、加温源要素からキャビティ形成面への伝熱がより均一なものとなる。
本発明の一実施形態に係る三次元形状造形物を金型として使用する場合に関連する種々の具体的な態様について説明する。
12A 加温源要素の主面
14 断熱ポーラス領域
16 加温源要素保護部材
18 伝熱部材
22 粉末層
24 固化層
100 三次元形状造形物
100A 三次元形状造形物の凹凸状の表面
L 光ビーム
Claims (9)
- (i)粉末層の所定箇所に光ビームを照射して該所定箇所の粉末を焼結又は溶融固化させて固化層を形成する工程、および
(ii)得られた固化層の上に新たな粉末層を形成し、該新たな粉末層の所定箇所に光ビームを照射して更なる固化層を形成する工程
によって粉末層形成および固化層形成を交互に繰り返し行い三次元形状造形物を製造する方法であって、
前記三次元形状造形物の前記製造において、加温源要素を該三次元形状造形物の内部に設けると共に、該三次元形状造形物の表面を凹凸状に形成し、また、
前記加温源要素の主面と前記凹凸状の前記表面とを互いに同一形状にすることを特徴とする、三次元形状造形物の製造方法。 - 前記加温源要素の前記主面と前記凹凸状の前記表面との離隔距離を一定にすることを特徴とする、請求項1に記載の三次元形状造形物の製造方法。
- 前記三次元形状造形物の前記内部において前記加温源要素の周囲に断熱ポーラス領域を形成することを特徴とする、請求項1または2に記載の三次元形状造形物の製造方法。
- 前記加温源要素としてヒータを用い、該ヒータの前記主面に相当する発熱面を前記凹凸状の前記表面と前記同一形状にすることを特徴とする、請求項1〜3のいずれか一項に記載の三次元形状造形物の製造方法。
- 前記三次元形状造形物の前記内部において前記加温源要素の前記主面上に加温源要素保護部材を設けることを特徴とする、請求項1〜4のいずれか一項に記載の三次元形状造形物の製造方法。
- 前記加温源要素保護部材を前記加温源要素と密接するように設けることを特徴とする、請求項5に記載の三次元形状造形物の製造方法。
- 前記加温源要素として加温媒体路を前記三次元形状造形物の前記内部に形成し、該加温媒体路の壁面の一部を前記凹凸状の前記表面と前記同一形状にすることを特徴とする、請求項1〜3のいずれか一項に記載の三次元形状造形物の製造方法。
- 前記三次元形状造形物の前記内部にて前記加温源要素の前記主面と前記三次元形状造形物の前記表面との間に相当する領域に伝熱部材を設けることを特徴とする、請求項1〜7のいずれか一項に記載の三次元形状造形物の製造方法。
- 加温源要素を内部に備えた三次元形状造形物であって、
前記三次元形状造形物の表面が凹凸状を有し、前記加温源要素の主面と該凹凸状の該表面とが互いに同一形状になっていることを特徴とする、三次元形状造形物。
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JP2015152056A JP6471975B2 (ja) | 2015-07-31 | 2015-07-31 | 三次元形状造形物の製造方法および三次元形状造形物 |
PCT/JP2016/000644 WO2017022144A1 (ja) | 2015-07-31 | 2016-02-08 | 三次元形状造形物の製造方法および三次元形状造形物 |
US15/748,447 US20180214948A1 (en) | 2015-07-31 | 2016-02-08 | Method for manufacturing three-dimensional shaped object and three-dimensional shaped object |
KR1020187002790A KR102099575B1 (ko) | 2015-07-31 | 2016-02-08 | 3차원 형상 조형물의 제조 방법 및 3차원 형상 조형물 |
CN201680044619.XA CN107848210A (zh) | 2015-07-31 | 2016-02-08 | 三维形状造型物的制造方法以及三维形状造型物 |
DE112016003485.7T DE112016003485T5 (de) | 2015-07-31 | 2016-02-08 | Verfahren für ein Herstellen eines dreidimensional geformten Gegenstands und dreidimensional geformter Gegenstand |
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Cited By (2)
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DE102017003926A1 (de) * | 2017-04-24 | 2018-10-25 | Heinz Gross | Extrusionsvorrichtung zur Minimierung des thermischen Abbaus von Schmelzen |
JP2019209688A (ja) * | 2018-05-31 | 2019-12-12 | 地方独立行政法人東京都立産業技術研究センター | 積層造形装置、三次元形状造形物に対する加工方法、三次元形状造形物及び金型 |
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GB201608637D0 (en) * | 2016-05-17 | 2016-06-29 | Rolls Royce Plc | Additive layer manufacturing base plate |
US10780498B2 (en) * | 2018-08-22 | 2020-09-22 | General Electric Company | Porous tools and methods of making the same |
US10987831B2 (en) * | 2019-05-24 | 2021-04-27 | The Boeing Company | Dies for forming a part and associated systems and methods |
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- 2016-02-08 KR KR1020187002790A patent/KR102099575B1/ko active IP Right Grant
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JP2019209688A (ja) * | 2018-05-31 | 2019-12-12 | 地方独立行政法人東京都立産業技術研究センター | 積層造形装置、三次元形状造形物に対する加工方法、三次元形状造形物及び金型 |
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KR102099575B1 (ko) | 2020-04-10 |
DE112016003485T5 (de) | 2018-04-19 |
WO2017022144A1 (ja) | 2017-02-09 |
US20180214948A1 (en) | 2018-08-02 |
CN107848210A (zh) | 2018-03-27 |
KR20180021185A (ko) | 2018-02-28 |
JP6471975B2 (ja) | 2019-02-20 |
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