CN104718061A - 用于分层制造三维物体的装置 - Google Patents
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Abstract
本发明涉及通过分层固化粉末来制造物体(1),此后,物体连同包围所述物体的粉末(2)一起被移动到容器(6)中并且由板(3)封闭,所述板在制造物体期间被定位在物体的下方。
Description
技术领域
本发明涉及一种用于分层制造三维物体的装置,并且特别地涉及包封成品以及包封包围所述成品的非固化粉末。
背景技术
当以分层的方式由粉末制造三维体时,待固化的粉末被设置在储存容器中。首先从这种储存容器中将一定量的粉末供应到所谓的施加器,并且通过这种施加器将粉末逐层施加到承板上。
施加的层的表面被称作构建区域。通过能量源固化施加的粉末层的预定区域。在刚刚施加的层中这些固化的区域对应于待制造的物体的相关横截面。
继而,施加新的粉末层,然后在这个新层内固化与待制造的物体的相应横截面相关的对应区域。通常,在施加新层之前降低承板对应于该新层厚度的量。由此构建区域通常位于同一平面内。
在本技术领域中,这样的场所被表示为构造空间,在所述场所中,能够降低承板和定位在承板上的层。由各壁横向地限制这种构造空间。由承板形成构造空间的底部。
连续实施上述涂覆、固化和降低的工序直到完全完成待产生的物体为止。制造的物体此时位于构造空间中并且由未固化的粉末包围。
由现有技术文献DE 198 46 478 A1,已知从激光烧结机移除包括壁和承板的整个构造空间。
由文献WO 93/08928 A1已知一种位于构建区域上方的帽状容器,通过所述帽状容器能够从构造空间移除制造的物体和包围所述制造的物体的未固化粉末。术语帽状容器表示包围一体积并且在一侧处打开的物体,在该侧处开口通常指向底部。
鉴于没有公开用于帽状容器的封闭件的事实,根据WO 93/08928A1对于现有技术而言存在劣势。
只要粉末代表具有相当大价值的粉末(例如,贵金属粉末),则不具有封闭件的容器便存在这样的劣势,即,在不受控制时粉末会丢失。
此外,当使用不具有封闭件的容器时,粉末会污染装置的内部空间。这在同一机器中接续使用不同种类粉末的情况中尤为不利,这是因为之前使用的粉末的剩余量可能不利地影响此后在这个装置中制造的物体的性能。
技术目的
本发明的目的是提供一种装置,在所述装置中,能够在封闭的容器中从激光烧结机移除制造的物体和包围所述物体的粉末,同时又不会从容器中泄漏出粉末。
发明内容
根据本发明,通过允许制造的物体和包围所述物体的粉末连同封闭元件一起从构造空间移动到帽状容器中以及允许后续使用封闭元件来封闭容器实现这个目的。
致使形成本发明的考虑起源于这样的认识,即,由于指向底部的容器开口,其有利地能够在仅仅一个操作步骤中将制造的物体和包围所述物体的粉末包封到容器中并且随后紧闭容器。为此,以创造性的方式选择布置方案,其中,板用作封闭元件,所述封闭元件直接定位在承板上并且因此恰巧位于被制造的物体的下方。
在优选的实施例中,封闭元件具有对应于帽状容器的开口的横截面。
在本发明的其它实施例中,底板用作帽状容器的封闭元件,所述底板在以逐层的方式由金属制造物体时是必需的。在文献EP 0 734842 A1中描述了这种底板,其全部内容并入本文中以作为参考。
优选效果
通过将封闭元件布置在承板上并且因此封闭元件位于构建区域中的被制造的物体的下方的布置方案,能够恰巧使用这样的驱动器,所述驱动器用于降低承板,而且就封闭元件而言所述驱动器用于将封闭元件插入到帽状容器中。
因为帽状容器的开口指向底部,所以可以在仅仅一个操作步骤中通过仅仅提升整套单元来实行包封制造的物体和未固化粉末以及实行封闭容器,所述整套单元包括封闭元件、被制造的部件和周围的未固化粉末。
当将本发明应用于由金属分层制造物体时,底板可同时以有利的方式用作封闭元件,使得可以有利地省略单独的封闭元件。
附图简要说明
在下文中,通过三张附图更加详细地解释了本发明。
图1示出了根据本发明的装置的截面图。切割线大致轴向地延伸并且通过构建区域的中心。
以已知方式在底板3上构造由粉末层2包围的被制造物体1。
底板3相对地与承板4相连。底板3和承板4之间的连接被形成为是可拆卸的。在示出的视图中,没有详细示出可拆卸的连接的性质,因为实际上采用何种可拆卸的连接与本发明的功能无关。适形连接或强制锁定连接以及摩擦连接或非强制性连接也是可行的(例如,粘合剂、真空连接或卡扣连接)。承板4被设置成能够通过驱动器(未示出)上下运动。
在构建平面5上方安装有容器6。容器6在朝向构建平面的一侧打开并且具有一横截面,所述横截面对应于构建区域的横截面。容器6相对于构建平面5定位成使得容器的内壁与构造空间的内壁齐平。
容器6位于保持件7中,所述保持件被设置成能够通过驱动器(未示出)沿着平行于构建平面5的方向移动。在制造操作期间,容器6位于用来固化粉末的能量源的光束路径的外侧。
已经完成制造操作之后,将容器定位在构建区域上方。为了进行密封,设置周向延伸的填密件8,所述填密件8密封保持件7和构建平面5之间的间隙。
图2示出了由图1已知的元件,其中,底板3和在该底板3上制造的物体1连同粉末2一起竖直向上移动到容器6中。由于所述底板、物体和粉末的插入,容器6中的气压会升高,可以以受控的方式通过阀9排出气体。
图3示出了在承板已经再次竖直向下移动之后的情况。为此,在之前已经释放了底板3和承板4之间的可拆卸连接。由于底板3的外边缘与容器6的内壁之间的摩擦,底板3保持位于容器6中。
底板3被插入到容器6中如此远,以致于可以对容器6的下边缘进行折边。这种折边可靠地起作用,使得在进一步运输过程中底板3连同制造的物体1或粉末2一起保持在容器6内。
在本发明的优选但未示出的实施例中,没有设置单独的承板。已经在先前实施例中提供以用于降低承板的驱动器在此直接接合封闭元件,使得在封闭元件和驱动器之间存在可拆卸的连接。为了在完成物体之后移除容器以及从构造空间移除物体,用封闭元件封闭容器,继而,释放封闭元件和驱动器之间的可拆卸连接。
工业应用
本发明可工业应用于分层制造物体。
Claims (10)
1.用于在构造空间内由粉末源材料分层制造三维物体的装置,在所述构造空间中制造三维物体(1),并且所述装置具有容器(6)以用于接收制造的三维物体(1)和包围所述三维物体(1)的未固化粉末,其中,
容器(6)包围一体积并且朝向向下指向的侧部打开,其特征在于,
由封闭元件封闭容器(6)的打开的所述侧部,并且
制造的三维物体(1)和包围所述三维物体(1)的未固化粉末(2)被设置成与封闭元件一起从所述构造空间由下方通过打开的所述侧部移动到容器(6)中。
2.根据权利要求1所述的装置,其特征在于,
所述封闭元件被形成为板,所述板的面积基本对应于所述容器(6)的打开的所述侧部的面积。
3.根据权利要求1或2所述的装置,其特征在于,
所述封闭元件是在由粉末金属分层制造三维物体(1)时用作底板(3)的元件。
4.根据前述权利要求之一所述的装置,其特征在于,
所述封闭元件能够拆卸地布置在用于分层制造三维物体(1)的装置的承板(4)上。
5.根据权利要求1至3中的一项所述的装置,其特征在于,
驱动器直接接合所述封闭元件,在分层制造期间所述驱动器逐步降低物体。
6.用于移除在根据前述权利要求之一所述的装置中制造的三维物体和包围所述三维物体的未固化粉末的方法,其特征在于,
制造的三维物体(1)和包围所述三维物体的未固化粉末(2)连同封闭元件一起从所述构造空间由下方移动到容器(6)中。
7.根据权利要求6所述的用于移除制造的三维物体和包围所述三维物体的未固化粉末的方法,其特征在于,
由封闭元件封闭所述容器(6)。
8.用于移除在根据权利要求1至4中的一项所述的装置中制造的三维物体和包围所述三维物体的未固化粉末或根据权利要求6至7中的一项所述的用于移除制造的三维物体和包围所述三维物体的未固化粉末的方法,其特征在于,
从承板(4)释放所述封闭元件。
9.用于移除在根据权利要求1至3中的一项所述的装置中制造的三维物体和包围所述三维物体的未固化粉末或根据权利要求5至7中的一项所述的用于移除制造的三维物体和包围所述三维物体的未固化粉末的方法,其特征在于,
驱动器直接接合封闭元件。
10.根据权利要求5至9中的一项所述的用于移除制造的三维物体和包围所述三维物体的未固化粉末的方法,其特征在于,
沿着向上的方向从所述装置移除容器(6)。
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DE102012018366.6A DE102012018366A1 (de) | 2012-09-18 | 2012-09-18 | Vorrichtung zum lagenweisen Herstellen eines dreidimensionalen Gegenstandes |
DE102012018366.6 | 2012-09-18 | ||
PCT/EP2013/069361 WO2014044705A1 (de) | 2012-09-18 | 2013-09-18 | Vorrichtung zum lagenweisen herstellen eines dreidimensionalen gegenstandes |
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CN104718061A true CN104718061A (zh) | 2015-06-17 |
CN104718061B CN104718061B (zh) | 2016-11-30 |
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Cited By (3)
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CN109070456A (zh) * | 2016-05-04 | 2018-12-21 | Addup公司 | 包括提取系统的增材制造机器和使用这种机器的增材制造方法 |
CN109249614A (zh) * | 2017-07-13 | 2019-01-22 | 三纬国际立体列印科技股份有限公司 | 立体打印装置 |
CN110121406A (zh) * | 2016-11-18 | 2019-08-13 | 通用电气公司 | 用于增材制造的方法及辐条支撑件 |
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DE19846478A1 (de) * | 1998-10-09 | 2000-04-27 | Eos Electro Optical Syst | Laser-Sintermaschine |
DE19937260A1 (de) * | 1999-08-06 | 2001-02-15 | Eos Electro Optical Syst | Verfahren und Vorrichtung zum Herstellen eines dreidimensionalen Objekts |
WO2002028568A2 (de) * | 2000-10-04 | 2002-04-11 | Generis Gmbh | Verfahren zum entpacken von in ungebundenem partikelmaterial eingebetteten formkörpern |
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CN109070456A (zh) * | 2016-05-04 | 2018-12-21 | Addup公司 | 包括提取系统的增材制造机器和使用这种机器的增材制造方法 |
CN109070456B (zh) * | 2016-05-04 | 2020-07-31 | Addup公司 | 包括提取系统的增材制造机器和使用这种机器的增材制造方法 |
CN110121406A (zh) * | 2016-11-18 | 2019-08-13 | 通用电气公司 | 用于增材制造的方法及辐条支撑件 |
CN110121406B (zh) * | 2016-11-18 | 2022-03-15 | 通用电气公司 | 用于增材制造的方法及辐条支撑件 |
CN109249614A (zh) * | 2017-07-13 | 2019-01-22 | 三纬国际立体列印科技股份有限公司 | 立体打印装置 |
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BR112015005293A2 (pt) | 2017-07-04 |
DE102012018366A1 (de) | 2014-03-20 |
EP2897781B2 (de) | 2023-09-27 |
JP6219957B2 (ja) | 2017-10-25 |
US10416623B2 (en) | 2019-09-17 |
RU2015109284A (ru) | 2016-10-10 |
EP2897781A1 (de) | 2015-07-29 |
WO2014044705A1 (de) | 2014-03-27 |
RU2647039C2 (ru) | 2018-03-13 |
US20150239177A1 (en) | 2015-08-27 |
JP2015533690A (ja) | 2015-11-26 |
IN2015KN00678A (zh) | 2015-07-17 |
EP2897781B1 (de) | 2016-11-23 |
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