CN110099784A - 具有自动增强件穿引的增材制造系统 - Google Patents

具有自动增强件穿引的增材制造系统 Download PDF

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Publication number
CN110099784A
CN110099784A CN201880005315.1A CN201880005315A CN110099784A CN 110099784 A CN110099784 A CN 110099784A CN 201880005315 A CN201880005315 A CN 201880005315A CN 110099784 A CN110099784 A CN 110099784A
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CN
China
Prior art keywords
roller
print head
group
resin
automatic threading
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Pending
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CN201880005315.1A
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English (en)
Inventor
肯尼思·莱尔·泰勒
赖安·C·斯托科特
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Cc3d Ltd
CC3D LLC
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Cc3d Ltd
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Publication of CN110099784A publication Critical patent/CN110099784A/zh
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10—Formation of a green body
    • B22F10/12—Formation of a green body by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP]
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    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
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    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
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    • B29C48/08—Flat, e.g. panels flexible, e.g. films
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract

公开了一种增材制造系统。增材制造系统可包括可移动支撑件以及连接到可移动支撑件的打印头。打印头可以被配置成排出用液体基质浸湿的连续增强件。增材制造系统还可包括：自动穿引器，其被配置成使连续增强件穿过打印头；以及控制器，其与可移动支撑件、打印头和自动穿引器通信连接。控制器可以被配置成在制造过程开始时选择性地激活自动穿引器。

Description

具有自动增强件穿引的增材制造系统
相关申请的交叉引用
本申请基于并要求2017年1月24日提交的美国临时申请No.62/449,899的优先权，其内容通过引用明确地并入本文。
技术领域
本公开总体涉及一种制造系统，并且更具体地，涉及一种具有自动增强件穿引的增材制造系统。
背景技术
连续纤维3D打印(也称为CF3DTM)涉及使用嵌入到从可移动打印头排出的材料内的连续纤维。将基质供应到打印头并与同时通过同一打印头的一个或多个连续纤维一起排出(例如挤出和/或拉挤)。基质可以是传统的热塑性塑料、粉末金属、液体树脂(例如，UV可固化和/或双组分树脂)，或这些和任何其他已知基质的组合。在离开打印头时，固化增强器(例如，UV光、超声发射器、热源、催化剂供应部等)激活以引发和/或完成基质的固化。这种固化几乎立即发生，从而允许在自由空间中制造无支撑结构。并且当纤维，特别是连续纤维嵌入结构内时，结构的强度可以倍增超过基质相关的强度。在2016年12月6日授予Tyler的美国专利9,511,543(“’543专利”)中公开了该技术的一个示例。
尽管连续纤维3D打印提供了增加的强度，但是与不利用连续纤维增强件的制造工艺相比，与该工艺相关联的设置可能是复杂的和/或耗时的。例如，纤维穿过打印头在历史上是一种手动过程，涉及沿相反方向向上穿过打印头喷嘴放置的窄钩子。然后将钩子附接到纤维上，并通过喷嘴拉出。当使用刚性增强件(例如，预浸纤维、线材等)时这可能是困难的，并且当使用更柔性纤维(例如，干纤维)时甚至更耗时。
所公开的系统旨在解决上述问题中的一个或多个和/或现有技术的其他问题。
发明内容
在一个方面，本公开涉及一种用于增材制造系统的自动穿引器。自动穿引器可包括第一组辊子以及第二组辊子。自动穿引器还可包括设置在第一组辊子和第二组辊子之间的树脂喷射器，以及位于树脂喷射器的下游的固化增强器。
在另一方面，本发明涉及一种用于增材制造系统的打印头。打印头可包括基质贮存器、流体连接到基质贮存器的喷嘴、以及位于喷嘴的下游的主固化增强器。打印头还可包括位于喷嘴的上游的自动穿引器。
在又一方面，本公开涉及一种增材制造系统。增材制造系统可包括可移动支撑件以及连接到可移动支撑件的打印头。打印头可以构造成排出用液体基质浸湿的连续增强件。增材制造系统还可包括：自动穿引器，其被构造成使连续增强件穿过打印头；以及控制器，其与可移动支撑件、打印头和自动穿引器通信连接。控制器可以构造成在制造过程开始时选择性地激活自动穿引器。
在又一方面，本发明涉及一种增材制造复合结构的方法。该方法可包括在穿过打印头的连续增强件中形成拉紧部段，并选择性地将树脂喷射到连续增强件中的拉紧部段上。该方法还可以包括选择性地将固化能量朝喷射到连续增强件中的拉紧部段上的树脂进行引导。
附图说明
图1是示例性公开的制造系统的示意图；
图2是可以与图1的制造系统一起使用的示例性公开的打印头的示意图；
图3和图4是可以与图1的制造系统结合使用的另一个示例性公开的打印头的示意图；以及
图5是可以与图2-图4的打印头结合使用的示例性自动穿引器的横截面图示。
具体实施方式
图1示出了示例性系统10，其可用于连续制造具有任何所需横截面形状(例如，圆形、多边形等)的复合结构12。系统10可以包括至少一个支撑件14和头部16。头部16可以耦接到支撑件14并由支撑件14移动。在图1所公开的实施例中，支撑件14是能够在结构12的制造期间在多个方向上移动头部16的机器臂，使得结构12的所得纵向轴线是三维的。然而，可以设想，支撑件14可以替代地是高架龙门架或混合龙门架/臂，其也能够在结构12的制造期间沿多个方向移动头部16。尽管支撑件14被示出为能够进行多轴运动，可以设想，如果需要，也可以使用能够以相同或不同方式移动头部16的任何其他类型的支撑件14。在一些实施例中，驱动器可以将头部16机械地耦接到支撑件14，并且可以包括协作为使头部16移动和/或向头部16供应动力或材料的部件。
头部16可以被配置成接收或以其他方式包含基质。基质可包括可固化的任何类型的材料(例如，液体树脂，诸如零挥发性有机化合物树脂；粉末金属；等)。示例性基质包括热固性材料、单组分或多组分环氧树脂、聚酯树脂、阳离子环氧树脂、丙烯酸酯化环氧树脂、氨基甲酸酯、酯、热塑性塑料、光聚合物、聚环氧化物、硫醇、烯烃、硫醇-烯等。在一个实施例中，头部16内的基质可以被加压，例如通过外部装置(例如，挤出机或其他类型的泵-未示出)，其经由相应的导管(未示出)流体连接到头部16。然而，在另一个实施例中，基质压力可以通过类似类型的装置完全在头部16内部产生。在其他实施例中，基质可以通过穿过头部16重力进料和/或在头部16内混合。在一些情况下，头部16内的基质可能需要保持冷却和/或黑暗以抑制过早固化；而在其他情况下，由于同样的原因，基质可能需要保持温暖。在任一种情况下，头部16可以是特殊配置的(例如，绝缘的，冷却的和/或加热的)以满足这些需求。
基质可用于涂覆、包裹或以其他方式至少部分地包围任何数量的连续增强件(例如，单独的纤维、丝束、粗纱、带和/或材料片)，并且与增强件一起，构成复合结构12的至少一部分(例如，壁)。增强件可以存储在头部16内(例如，在单独的内部线轴上-未示出)或以其他方式穿过头部16(例如，从外部线轴供给)。当同时使用多个增强件时，增强件可以是相同类型并且具有相同的直径和横截面形状(例如，圆形、方形、扁平等)，或者可以是不同类型，其具有不同直径和/或截面形状。增强件可包括例如碳纤维、植物纤维、木纤维、矿物纤维、玻璃纤维、金属线、光学管等。应当注意，术语“增强件”意味着包括结构和非结构两种类型的连续材料，其可以至少部分地包裹在从头部16排出的基质中。
当增强件在头部16内、当增强件被传递到头部16(例如，作为预浸料材料)、和/或当增强件根据需要从头部16排出时，增强件可以暴露于(例如，涂覆有)基质。基质、干燥增强件和/或已经暴露于基质的增强件(例如，浸湿增强件)可以以本领域技术人员显而易见的任何方式输送到头部16中。
可以通过至少两种不同的操作模式从头部16排出基质和增强件。在第一操作模式中，当头部16由支撑件14移动以产生三维形状的结构12时，基质和增强件从头部16被挤出(例如，在压力和/或机械力下被推出)。在第二操作模式中，至少增强件被从头部16拉出，使得在排出期间在增强件中产生拉伸应力。在这种操作模式中，基质可以附着到增强件上从而也可以与增强件一起被从头部16拉出，和/或基质可以在压力下与拉出的增强件一起从头部16中排出。在第二操作模式中，在从头部16拉出基质的情况下，增强件中产生的张力可以增加结构12的强度，同时还允许更大长度的无支撑材料具有更直的轨迹(即，张力可以抵抗重力作用，为结构12提供独立支撑)。
由于头部16远离锚定点18移动，因此可以从头部16拉出增强件。特别地，在结构形成开始时，一段基质浸渍增强件可以从头部16拉出和/或推出、沉积到锚定点18并固化，使得排出的材料粘附到锚定点18。此后，头部16可以远离锚定点18移动，并且相对移动可以使得增强件被从头部16拉出。应该注意的是，如果需要，可以辅助增强件通过头部16的运动(例如，通过内部进给机构)。然而，增强件从头部16的排出速率可主要是头部16和锚固点18之间的相对运动的结果，使得在增强件内产生张力。可以设想，代替头部16远离锚定点18移动或者除了头部16远离锚定点18移动之外，锚点18可以远离头部16移动。
一个或多个固化增强器(例如，一个或多个光源、超声波发射器、激光器、加热器、催化剂分配器、微波发生器等)20可以安装在头部16附近(例如，在头部上和/或尾随于头部)并且配置成在基质从头部16排出时提高基质的固化速率和/或质量。在结构12形成期间，可以控制固化增强器20以选择性地将结构12的内部和/或外部表面暴露于能量(例如，光能、电磁辐射、振动、热、化学催化剂或硬化剂等)。能量可以增加基质内发生的化学反应速率，烧结材料，硬化材料或当材料从头部16排出时以其他方式使材料固化。
可以提供控制器22并且控制器22与支撑件14、头部16以及任何数量和类型的固化增强器20通信地耦接。控制器22可以实施有单个处理器或多个处理器，这些处理器包括用于控制系统10的操作的装置。控制器22可以包括一个或多个通用或专用处理器或微处理器。控制器22还可以包括用于存储数据的存储器或与用于存储数据的存储器相关联，这些数据例如是设计限制、性能特征、操作指令、基质特征、增强件特征、结构12的特征，以及系统10的每个部件的相应参数。各种其他已知电路可以与控制器22相关联，包括电源电路、信号调节电路、螺线管/马达驱动器电路、通信电路和其他适当的电路。此外，控制器22可以能够通过有线和/或无线传输与系统10的其他部件通信。
一个或多个映射可以存储在控制器22的存储器中并且在结构12的制造期间使用。这些映射中的每一个可以包括呈模型、查找表、图形和/或方程形式的数据集合。在所公开的实施例中，控制器22使用这些映射来确定固化增强器20、相关基质和/或结构12内不同位置处的相关增强件的所需特征。这些特征可包括类型、数量等，和/或待在结构12内的特定位置处排出的增强件和/或基质的构造，和/或所需固化的量、强度、形状和/或位置。然后，控制器22可以将支撑件14的操作(例如，头部16的定位和/或定向)和/或材料从头部16的排出(材料类型、所需的材料性能、材料的交联要求、排出速率等)与固化增强器20的操作相关联，使得结构12以所需的方式生产。
在图2中详细公开了示例性头部16。头部16可以尤其包括一个或多个喷嘴24，喷嘴24流体连接到基质贮存器26的下端。任意数量的增强件(在图2中用R表示)可以在贮存器26的相反上端接收；轴向穿过贮存器26，其中发生至少一些基质浸渍(在图2中基质用M表示)；并且经由任何数量的单独喷嘴24从头部16排出。在所公开的实施例中，使用具有笔直轴向或会聚的尖端的单个喷嘴24。然而，在多喷嘴应用中，每个喷嘴24的尖端具有发散的形状可能是有帮助于便于将涂覆不同基质的纤维聚结成复合材料的带或片。
存在用于用基质浸湿一个或多个增强件的多个选择。在一个示例中，在增强件通过基质贮存器26内的浴槽期间，增强件至少部分地涂覆有基质。在其他示例中，在通过基质贮存器26期间可以选择性地激活一个或多个喷射器28(例如，通过控制器22)以用基质喷射一个或多个增强件。可以预期，可以根据需要采用这些技术和其他技术的组合。
在一些情况下，可能难以用增强件加载头部16，因为一些增强件可能缺乏从基质贮存器26的上端通过喷嘴24的尖端推出所需的刚性。图2示出可以简化加载头部16的一种方式。具体地，自动穿引器30可以附接到头部16或以其他方式集成到头部16中。
自动穿引器30可以尤其包括与第二组或上游组辊子34分开的第一组或下游组辊子32、轴向设置在辊子32和辊子34之间的至少一个树脂喷射器36、以及位于树脂喷射器36的附近或下游的辅助固化增强器38。通过这种构造，当增强件的纤维尖端放入头部16中时，自动穿引器30的辊子34可能会引起反向旋转(例如，由控制器22自动地引起或响应于手动输入)并且拉入增强件。增强件可以从辊子34朝向辊子32传递，辊子32此时也可以反向旋转。在辊子32接合并抓住增强件之后的时间点，辊子34可以停止旋转和/或沿相反方向反向旋转，使得增强件在两组辊子32,34之间被拉紧。之后，树脂喷射器36可以被激活(例如，由控制器22自动地激活和/或响应于手动输入)以将树脂(例如，包含在基质贮存器26内的相同基质或不同的树脂)喷射到拉紧且拉直的增强件上。然后可以激活辅助固化增强器38，以使树脂固化，从而在增强材料的自由端产生硬化的笔直部段(例如针尖)。然后，辊子34可以释放增强件，而辊子32使针尖通过喷嘴24前进。应该注意的是，针尖的长度(以及辊子32和辊子34之间的相应距离)应该至少与从辊子32穿过喷嘴24的距离一样长。还应注意，如果需要，可以使用浴槽(未示出)代替喷射器36或者除了喷射器36之外还可以使用浴槽(未示出)。
在图3中示出了用增强件加载头部16的另一种方式。如该图所示，头部16能够在内部切断增强件(例如，在结构12的径迹或层完成时)，并自动重新启动新的径迹、层和/或打印。特别地，头部16可包括轴向位于辊子32和辊子34之间的切断机构40，以及至少部分透明并位于切断机构40上游或下游的料条成型模42。控制器22可与这些部件中的每个通信，并被配置成在期望的端点处选择性地致动切断机构40，之后头部16可以移动到新的起始点而无需排出大段增强件。在大约此时(例如，恰在增强件切断之前或之后)，可以使树脂喷射器36将树脂喷射到增强件的一部分上，然后可以通过辊子34将该部分推进到料条成型模42并进入辊子32中。当增强件进入料条成型模42中时，可以使料条成型模42闭合(如图5所示)和/或压缩树脂浸湿的增强件。在该操作期间，可以选择性地激活辅助固化增强器38以使能量通过料条成型模42并使树脂至少部分固化。在料条成型模42内部的增强件上树脂的部分固化可以允许料条成型模42成型并硬化材料(例如，成型为具有任何所需横截面的拉直针尖)以便更容易穿引过喷嘴24。应该是注意到，如果需要，除了切断增强件之外，还可以使用切断机构40(或另一种类似的机构)来成形针尖(例如，通过相对于增强件的轴线以一定角度进行切割)。
工业适用性
所公开的系统可用于连续制造具有任何所需横截面尺寸、形状、长度、密度和/或强度的复合结构。复合结构可包括相同或不同类型、直径、形状、构型和组成的任何数量的不同增强件，这些增强件各自涂覆有共同的基质。另外，所公开的自动穿引器可以允许简化和节省资源的设置。现在将详细描述系统10的操作。
在制造事件开始时，可以将关于所需结构12的信息加载到系统10中(例如，加载到负责调节支撑件14和/或头部16的操作的控制器22中)。该信息可以尤其包括尺寸(例如，直径、壁厚、长度等)、轮廓(例如，轨迹)、表面特征(例如，脊尺寸、位置、厚度、长度；凸缘尺寸、位置、厚度、长度；等)及表面处理、连接几何形状(例如，联接部、三通、接头等的位置和尺寸)、特定位置基质要求、特定位置增强件要求等。应该注意，如果需要，该信息可以在制造事件期间替代地或另外地在不同时间和/或连续地加载到系统10中。基于部件信息，可以将一个或多个不同的增强件和/或基质选择性地安装和/或连续地提供到系统10中。
可以通过使增强件向下穿过基质贮存器26，然后将增强件穿引过存在的任何喷嘴24来执行增强件的安装。虽然该过程可以手动完成，但是自动穿引器30可以降低复杂性和/或设置期间所消耗的时间。如上所述，自动穿引器30可以接收增强件的松散端，在辊子32和辊子34之间拉紧增强件，用树脂至少部分地涂覆拉紧的增强件，通过暴露于来自辅助固化增强器38的固化能量来硬化树脂，并且然后将所得到的针部推动通过喷嘴24。在一些实施例中，可以使用料条成型模42来成形针部。
基质的安装可以包括将贮存器26填充在头部16内和/或将挤出机(未示出)耦接到头部16。然后可以在控制器22的调节下通过支撑件14移动头部16以引起涂覆基质的增强件放置抵靠或放置在对应锚定点18。然后可以选择性地激活头部16内的固化增强器20，以使围绕增强件的基质硬化，从而将增强件结合到锚定点18。
然后可以使用部件信息来控制系统10的操作。例如，可以从头部16(与基质一起)拉出和/或推出增强件，同时在固化期间，支撑件14以期望的方式选择性地移动头部16，使得所得结构12的轴线遵循期望的轨迹(例如，自由空间无支撑3D轨迹)。当单独的增强件被拉动通过头部16时，增强件可以被推动和/或拉动通过喷嘴24。一旦结构12已经生成到期望的长度，结构12可以以任何期望的方式从头部16断开(例如，切断)。
对于本领域技术人员显而易见的是，可以对所公开的系统和头部进行各种修改和变化。考虑到所公开的系统和头部的说明书和实践，其他实施例对于本领域技术人员来说是显而易见的。说明书和示例旨在仅被视为示例性的，真实范围由所附权利要求及其等同物指示。

Claims (25)

1.一种用于增材制造系统的自动穿引器，包括：
第一组辊子；
第二组辊子；
树脂喷射器，其设置在所述第一组辊子和所述第二组辊子之间；以及
固化增强器，其位于所述树脂喷射器的下游。
2.根据权利要求1所述的自动穿引器，其中，所述固化增强器位于所述第一组辊子和所述第二组辊子之间。
3.根据权利要求1所述的自动穿引器，其中，所述固化增强器是UV光。
4.根据权利要求1所述的自动穿引器，还包括位于所述第一组辊子和所述第二组辊子之间的料条成型模。
5.根据权利要求3所述的自动穿引器，其中，所述料条成型模至少部分透明并且被配置成使来自所述固化增强器的固化能量通过。
6.根据权利要求1所述的自动穿引器，还包括位于所述第一组辊子和所述第二组辊子之间的切断机构。
7.一种用于增材制造系统的打印头，包括：
基质贮存器；
喷嘴，其流体连接到所述基质贮存器；
主固化增强器，其位于所述喷嘴的下游；以及
自动穿引器，其位于所述喷嘴的上游。
8.根据权利要求7所述的打印头，其中，所述自动穿引器位于所述基质贮存器的内部。
9.根据权利要求7所述的打印头，其中，所述自动穿引器包括：
树脂喷射器；以及
辅助固化增强器，其位于所述树脂喷射器的下游。
10.根据权利要求9所述的打印头，其中，所述自动穿引器还包括：
第一组辊子，其位于所述树脂喷射器的上游；以及
第二组辊子，其位于所述辅助固化增强器的下游。
11.根据权利要求9所述的打印头，其中，所述主固化增强器和所述辅助固化增强器是UV光。
12.根据权利要求9所述的打印头，其中，所述自动穿引器还包括料条成型模，所述料条成型模至少部分透明并且被配置成使来自所述辅助固化增强器的固化能量通过。
13.根据权利要求7所述的打印头，还包括切断机构，其是与所述自动穿引器相关联的切断机构。
14.一种增材制造系统，包括：
可移动支撑件；
打印头，其连接到所述可移动支撑件并且被配置成排出用液体基质浸湿的连续增强件；
自动穿引器，其用于将所述连续增强件穿引通过所述打印头；以及
控制器，其与所述可移动支撑件、所述打印头以及所述自动穿引器通信连接，所述控制器被配置成在制造过程开始时选择性地激活所述自动穿引器。
15.根据权利要求14所述的增材制造系统，其中，所述自动穿引器位于所述打印头的内部。
16.根据权利要求14所述的增材制造系统，还包括位于所述打印头内部的切断机构，其中所述控制器还被配置成在所述制造过程结束时选择性地激活所述切断机构。
17.根据权利要求14所述的增材制造系统，其中：
所述自动穿引器包括：
第一组辊子；
第二组辊子，其位于所述第一组辊子的下游；
树脂喷射器；以及
辅助固化增强器，其位于所述树脂喷射器的下游；并且
控制器被配置成：
选择性地激活所述第一组辊子和所述第二组辊子以在所述连续增强件中形成拉紧部段；
选择性地激活所述树脂喷射器以将树脂喷射到所述连续增强件的所述拉紧部段上；以及
选择性地激活所述辅助固化增强器以将固化能量朝喷射到所述连续增强件中的所述拉紧部段上的树脂引导。
18.根据权利要求17所述的增材制造系统，其中，在所述固化能量被朝所述树脂引导之后，所述控制器还被配置成选择性地使所述第一组辊子和所述第二组辊子中的至少一个推进所述连续增强件中的所述拉紧部段通过所述打印头的喷嘴。
19.根据权利要求18所述的增材制造系统，其中：
所述打印头还包括：
基质贮存器，其被配置成用液体基质浸湿所述连续增强件；以及
主固化增强器，其位于所述基质贮存器的下游；以及
所述控制器还被配置成使得所述主固化增强器在从所述打印头的所述喷嘴排出所述连续增强件之后将固化能量朝浸湿所述连续增强件的所述液体基质进行引导。
20.根据权利要求17所述的增材制造系统，其中：
所述自动穿引器还包括料条成型模；以及
所述控制器还被配置成在所述树脂喷射之后并且在朝所述树脂引导固化能量之前使所述料条成型模围绕所述连续增强件中的所述拉紧部段闭合。
21.一种增材制造复合结构的方法，包括：
在穿过打印头的连续增强件中形成拉紧部段；
选择性地将树脂喷射到所述连续增强件中的所述拉紧部段上；以及
选择性地将固化能量朝喷射在所述连续增强件中的所述拉紧部段上的树脂引导。
22.根据权利要求21所述的方法，还包括在选择性地喷射树脂之后并且在选择性地将固化能量朝所述树脂引导之前使所述连续增强件中的所述拉紧部段成型。
23.根据权利要求21所述的方法，其中，在将固化能量朝所述树脂引导之后，所述方法还包括推进所述连续增强件中的所述拉紧部段通过所述打印头的喷嘴。
24.根据权利要求23所述的方法，还包括：
在液体基质中浸湿所述连续增强件；以及
在从所述打印头的所述喷嘴排出所述连续增强件之后，将固化能量朝浸湿所述连续增强件的所述液体基质引导。
25.根据权利要求24所述的方法，其中所述树脂与所述液体基质基本相同。
CN201880005315.1A 2017-01-24 2018-01-10 具有自动增强件穿引的增材制造系统 Pending CN110099784A (zh)

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