JP2018149798A - 積層造形システム、物品、および物品を製造する方法 - Google Patents
積層造形システム、物品、および物品を製造する方法 Download PDFInfo
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Abstract
Description
値は、正確な値と近似値の両方が明示的に特定されているものと解釈されるべきである。
[実施態様1]
物品(200)を積層造形する方法であって、
第1の特徴解像度に相当する第1の平均粒子サイズを有する第1の粉末材料分級物(301)による複数の第1の層の3次元印刷によって前記物品(200)の第1の部分(210)を形成することであり、前記複数の第1の層は第1の平均層厚を有する、ことと、
前記第1の特徴解像度よりも低い第2の特徴解像度に相当する第2の平均粒子サイズを有する第2の粉末材料分級物(302)による複数の第2の層の3次元印刷によって前記物品(200)の第2の部分(220)を形成することであり、前記第2の部分(220)は少なくとも1つの特徴(230)を含み、前記複数の第2の層は、前記第1の平均層厚よりも小さな第2の平均層厚を有する、ことと
を含む方法。
[実施態様2]
前記第1の部分(210)を形成することおよび前記第2の部分(220)を形成することは、粉末層処理と、直接金属レーザ溶融、直接金属レーザ焼結、選択的レーザ溶融、選択的レーザ焼結、電子ビーム溶融、およびそれらの組合せからなる群から選択される技術とを含む、実施態様1に記載の方法。
[実施態様3]
前記第1の平均層厚は少なくとも40μmである、実施態様1に記載の方法。
[実施態様4]
前記第2の平均層厚は25μm以下である、実施態様1に記載の方法。
[実施態様5]
前記少なくとも1つの特徴(230)は、50μm未満の許容誤差を有する表面特徴を含む、実施態様1に記載の方法。
[実施態様6]
前記第1の部分(210)および前記第2の部分(220)を前記3次元印刷により形成した後に機械加工を伴わずに前記物品(200)を提供することをさらに含む、実施態様1に記載の方法。
[実施態様7]
前記第1の粉末材料分級物(301)および前記第2の粉末材料分級物(302)は、セラミック、高温超合金、アルミニウム系合金、チタン系合金、スチール系合金、ニッケル系超合金、コバルト系超合金、およびそれらの組合せからなる群から選択される粉末材料を含む、実施態様1に記載の方法。
[実施態様8]
印刷プラットフォーム(407)と、
第1の特徴解像度に相当する第1の平均粒子サイズを有する第1の粉末材料分級物(301)、または第2の特徴解像度に相当する第2の平均粒子サイズを有する第2の粉末材料分級物(302)を前記印刷プラットフォーム(407)に制御可能かつ選択的に提供するように構成された粉末堆積アセンブリ(500)であり、前記第2の平均粒子サイズは前記第1の平均粒子サイズよりも小さい、粉末堆積アセンブリ(500)と、
前記印刷プラットフォーム(407)上の粉末材料に加熱エネルギーを供給するように構成された集束エネルギー源(310)と
を備える3次元印刷システム(400)。
[実施態様9]
前記粉末堆積アセンブリ(500)は、
前記第1の平均粒子サイズを有する前記第1の粉末材料分級物(301)を蓄える第1のホッパ(501)と、
前記第2の平均粒子サイズを有する前記第2の粉末材料分級物(302)を蓄える第2のホッパ(502)と、
前記第1の粉末材料分級物(301)を前記第1のホッパ(501)から前記印刷プラットフォーム(407)に、または前記第2の粉末材料分級物(302)を前記第2のホッパ(502)から前記印刷プラットフォーム(407)に選択的に送出する粉末送出アセンブリ(401)と
を備える、実施態様8に記載の3次元印刷システム(400)。
[実施態様10]
前記3次元印刷システム(400)により形成される物品(200)のコンピュータモデルに基づいて前記加熱エネルギーを誘導する制御システム(505)をさらに備える、実施態様8に記載の3次元印刷システム(400)。
[実施態様11]
前記集束エネルギー源(310)は、レーザ生成器および電子ビーム生成器からなる群から選択される、実施態様8に記載の3次元印刷システム(400)。
[実施態様12]
前記第1の平均粒子サイズは少なくとも45μmである、実施態様8に記載の3次元印刷システム(400)。
[実施態様13]
前記第2の平均粒子サイズは25μm未満である、実施態様8に記載の3次元印刷システム(400)。
[実施態様14]
前記第1の粉末材料分級物(301)および前記第2の粉末材料分級物(302)は、セラミック、高温超合金、アルミニウム系合金、チタン系合金、スチール系合金、ニッケル系超合金、コバルト系超合金、およびそれらの組合せからなる群から選択される粉末材料を含む、実施態様8に記載の3次元印刷システム(400)。
[実施態様15]
3次元印刷により粉末材料から形成された物品(200)であって、
第1の特徴解像度に相当する第1の平均粒子サイズを有する第1の粉末材料分級物(301)による複数の第1の層を含む第1の部分(210)であり、前記複数の第1の層は第1の平均層厚を有する、第1の部分(210)と、
前記第1の特徴解像度よりも低い第2の特徴解像度に相当する第2の平均粒子サイズを有する第2の粉末材料分級物(302)による複数の第2の層を含む第2の部分(220)であり、前記第2の部分(220)は少なくとも1つの特徴(230)を含み、前記複数の第2の層は、前記第1の平均層厚よりも小さな第2の平均層厚を有する、第2の部分(220)と
を備える物品(200)。
[実施態様16]
前記第1の粉末材料分級物(301)および前記第2の粉末材料分級物(302)は、セラミック、高温超合金、アルミニウム系合金、チタン系合金、スチール系合金、ニッケル系超合金、コバルト系超合金、およびそれらの組合せからなる群から選択される粉末材料を含む、実施態様15に記載の物品(200)。
[実施態様17]
前記物品(200)は、前記3次元印刷により形成された後の機械加工を伴っていない、実施態様15に記載の物品(200)。
[実施態様18]
前記第1の平均層厚は少なくとも40μmである、実施態様15に記載の物品(200)。
[実施態様19]
前記第2の平均層厚は25μm以下である、実施態様15に記載の物品(200)。
[実施態様20]
前記少なくとも1つの特徴(230)は、50μm未満の許容誤差を有する表面特徴を含む、実施態様15に記載の物品(200)。
210 第1の部分
220 第2の部分
230 特徴
301 第1の粉末材料分級物、粉末分級物
302 第2の粉末材料分級物、粉末分級物
310 集束エネルギー源
320 スキャナ
350 フィードバックセンサ
400 3D印刷システム
401 粉末送出アセンブリ
405 粉末材料フィーダ
406 表面
407 印刷プラットフォーム
409 集束エネルギービーム
420 製作ピストン
450 バルブ
500 粉末堆積アセンブリ
501 第1のホッパ
502 第2のホッパ
505 制御システム
510 粉末供給ライン
520 トラック
530 スプレッダ
Claims (10)
- 物品(200)を積層造形する方法であって、
第1の特徴解像度に相当する第1の平均粒子サイズを有する第1の粉末材料分級物(301)による複数の第1の層の3次元印刷によって前記物品(200)の第1の部分(210)を形成することであり、前記複数の第1の層は第1の平均層厚を有する、ことと、
前記第1の特徴解像度よりも低い第2の特徴解像度に相当する第2の平均粒子サイズを有する第2の粉末材料分級物(302)による複数の第2の層の3次元印刷によって前記物品(200)の第2の部分(220)を形成することであり、前記第2の部分(220)は少なくとも1つの特徴(230)を含み、前記複数の第2の層は、前記第1の平均層厚よりも小さな第2の平均層厚を有する、ことと
を含む方法。 - 前記第1の部分(210)を形成することおよび前記第2の部分(220)を形成することは、粉末層処理と、直接金属レーザ溶融、直接金属レーザ焼結、選択的レーザ溶融、選択的レーザ焼結、電子ビーム溶融、およびそれらの組合せからなる群から選択される技術とを含む、請求項1に記載の方法。
- 前記第1の平均層厚は少なくとも40μmである、請求項1に記載の方法。
- 前記第2の平均層厚は25μm以下である、請求項1に記載の方法。
- 印刷プラットフォーム(407)と、
第1の特徴解像度に相当する第1の平均粒子サイズを有する第1の粉末材料分級物(301)、または第2の特徴解像度に相当する第2の平均粒子サイズを有する第2の粉末材料分級物(302)を前記印刷プラットフォーム(407)に制御可能かつ選択的に提供するように構成された粉末堆積アセンブリ(500)であり、前記第2の平均粒子サイズは前記第1の平均粒子サイズよりも小さい、粉末堆積アセンブリ(500)と、
前記印刷プラットフォーム(407)上の粉末材料に加熱エネルギーを供給するように構成された集束エネルギー源(310)と
を備える3次元印刷システム(400)。 - 前記粉末堆積アセンブリ(500)は、
前記第1の平均粒子サイズを有する前記第1の粉末材料分級物(301)を蓄える第1のホッパ(501)と、
前記第2の平均粒子サイズを有する前記第2の粉末材料分級物(302)を蓄える第2のホッパ(502)と、
前記第1の粉末材料分級物(301)を前記第1のホッパ(501)から前記印刷プラットフォーム(407)に、または前記第2の粉末材料分級物(302)を前記第2のホッパ(502)から前記印刷プラットフォーム(407)に選択的に送出する粉末送出アセンブリ(401)と
を備える、請求項5に記載の3次元印刷システム(400)。 - 前記3次元印刷システム(400)により形成される物品(200)のコンピュータモデルに基づいて前記加熱エネルギーを誘導する制御システム(505)をさらに備える、請求項5に記載の3次元印刷システム(400)。
- 3次元印刷により粉末材料から形成された物品(200)であって、
第1の特徴解像度に相当する第1の平均粒子サイズを有する第1の粉末材料分級物(301)による複数の第1の層を含む第1の部分(210)であり、前記複数の第1の層は第1の平均層厚を有する、第1の部分(210)と、
前記第1の特徴解像度よりも低い第2の特徴解像度に相当する第2の平均粒子サイズを有する第2の粉末材料分級物(302)による複数の第2の層を含む第2の部分(220)であり、前記第2の部分(220)は少なくとも1つの特徴(230)を含み、前記複数の第2の層は、前記第1の平均層厚よりも小さな第2の平均層厚を有する、第2の部分(220)と
を備える物品(200)。 - 前記第1の粉末材料分級物(301)および前記第2の粉末材料分級物(302)は、セラミック、高温超合金、アルミニウム系合金、チタン系合金、スチール系合金、ニッケル系超合金、コバルト系超合金、およびそれらの組合せからなる群から選択される粉末材料を含む、請求項8に記載の物品(200)。
- 前記物品(200)は、前記3次元印刷により形成された後の機械加工を伴っていない、請求項8に記載の物品(200)。
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| US20180214955A1 (en) | 2018-08-02 |
| EP3354380B1 (en) | 2022-05-11 |
| US10773310B2 (en) | 2020-09-15 |
| EP3354380A1 (en) | 2018-08-01 |
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