CN113370441A - 一种碳纤维金属层板及其热冲压成形方法 - Google Patents

一种碳纤维金属层板及其热冲压成形方法 Download PDF

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CN113370441A
CN113370441A CN202110641342.1A CN202110641342A CN113370441A CN 113370441 A CN113370441 A CN 113370441A CN 202110641342 A CN202110641342 A CN 202110641342A CN 113370441 A CN113370441 A CN 113370441A
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carbon fiber
cfrp
resin layer
forming
metal laminate
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李毅波
卢燕
黄明辉
潘晴
陈超
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Central South University
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Central South University
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Abstract

本发明公开一种碳纤维金属层板热冲压成形方法，可用于碳纤维金属层板的热冲压快速成形。其采用碳纤维电加热方式加热已预热的预浸料，使得碳纤维金属层板热量由内向外热传导，树脂受热更加均匀，减少了由于层间温度梯度过大引起的残余应力，提高了成形质量；同时，碳纤维电加热产热量大、电热转换率高，可和外部热源共用作用使金属层板快速加热至成形温度，还将树脂固化过程中的保温保压阶段融合到了金属板的升温阶段，缩短了成形时间，使树脂浸润充分，层板受热更均匀，提高了成形效率，也进一步提高了成形质量。本发明还公开一种采用上述碳纤维金属层板热冲压成形方法制作而成的碳纤维金属层板。

Description

一种碳纤维金属层板及其热冲压成形方法
技术领域
本发明涉及复合材料层板成形技术领域，特别是涉及一种碳纤维金属层板及其热冲压成形方法。
背景技术
纤维金属层板是由金属薄层与纤维增强树脂基复合材料层交替铺叠，在一定固化工艺下形成的一种层间混杂复合材料结构。它保留了金属层板材料和传统纤维增强复合材料的优点，同时具备了高比强度和比刚度、良好的韧性和可加工性能及优异的疲劳性能和损伤容限等性能，在航空、汽车领域应用广泛。
现用于纤维金属层板的纤维增强树脂基包括热固性树脂和热塑性树脂，热固性树脂(如环氧树脂)复合材料成形需要长时间固化、且发生化学交联固化反应，生产效率低，随着航空航天领域对于高性能的材质要求越来越高，已经不能满足要求。热塑性树脂得到越来越多的应用。
目前常用的复合材料成形方法有滚弯成形、热压成形、热冲压成形等。滚弯成形工艺简单、效率高，但成形质量低且回弹变形大。热压成形主要通过热压罐和热压机来实现，热压罐设备投资大、生产效率低，热压机成形形状简单，不适合高效率、低成本制造。热冲压成形充分利用了金属塑性变形的特点，能够成形圆筒形件、曲面形状件、盒形件等复杂形状构件，具有一次成形、适合大批生产的特点，但现有成形方法中将先固化成板状的纤维金属层板再转移到模具中进行热冲压二次成形或直接将模具和纤维金属层板置于内部环境箱中一起加热再冲压共固化成形，前者存在效率低、成本高、操作复杂的问题，后者存在加热效率低、层板受热不均问题。
根据检索，中国专利CN 111231366 A公开一种CFRP/铝合金热成形淬火时效共固化一体化成形方法，其首先将铝合金置于加热炉中进行固溶处理并迅速转移至水冷模具中成形及淬火；然后对铝合金表面进行粗糙化处理并与碳纤维预浸料叠层；最后通过热冲压模具完成CFRP/铝合金的共固化过程及铝合金的时效过程；或者通过热冲压模具完成CFRP/铝合金的共固化过程，再将复合结构转移至加热炉中完成时效过程。该方法先成形铝合金板，待铝合金板淬火冷却至室温再与碳纤维预浸料叠层，然后转移到室温模具中冲压成形，成形过程复杂，直接对室温预浸料冲压成形易引起成形难度大和预浸料与已成形铝合金构件贴合不严问题，进一步导致层间粘接强度不足。而且，通过模具升温传递热量给CFRP/铝合金层板，易引起复合层板受热不均、层间温度梯度大的问题，进而造成成形件存在较大残余应力，没办法保证较好的成形质量。
因此，需要一种适合纤维金属层板加热均匀、成形快、成形质量高、缺陷少的热冲压成形工艺，来解决现有热冲压技术中加热时间长、成形质量低及成本高等问题。
发明内容
本发明的目的是提供一种碳纤维金属层板及其热冲压成形方法，以解决上述现有纤维金属层板热冲压成形质量低的问题。
为实现上述目的，本发明提供了如下方案：
本发明提供一种碳纤维金属层板热冲压成形方法，主要包括：
预热CFRP树脂层至树脂软化温度；
将金属板与预热完成的CFRP树脂层铺层形成预成形件；其中，“铺层”表示交替铺叠；
对所述预成形件的外层加热，同时给所述预成形件内的CFRP树脂层通电，以使所述金属板在外部加热和CFRP树脂层导热的双重加热条件下达到成形温度；
将达到成形温度的预成形件冲压成形。
可选的，预热CFRP树脂层之前，还包括CFRP树脂层的制作；其中，
所述CFRP树脂层的制作包括：
将绝缘树脂层和碳纤维预浸料按照相邻两层所述绝缘树脂层之间设置至少一层所述碳纤维预浸料的方式进行铺层，形成CFRP树脂层；
将电极片通过导电胶粘接于所述碳纤维预浸料，并将所述电极片的导线引出。
可选的，采用热压机将CFRP树脂层预热至所述树脂软化温度，所述树脂软化温度位于树脂玻化温度和树脂熔融温度之间。
可选的，采用热压机对所述预成形件的外层加热并施压，并使所述预成形件在5min内升温至所述成形温度，且所述成形温度不小于树脂熔融温度。
可选的，将达到成形温度的预成形件移至冲压模具，以对预成形件冲压成形；其中，达到成形温度的预成形件在5s之内转移至所述冲压模具。
可选的，所述冲压模具为V型模具；所述V型模具的凸模在压力机的驱使下向下冲压，完成合模；所述凸模的冲压速度为5mm/s～20mm/s。
可选的，对预成形件完成冲压成形之后，还包括依次进行的冷却固化、脱模和取件步骤；其中，所述冷却固化包括：
保持所述冲压模具中凸模的位置不变并保持冲压压力1-2MPa；
通过风冷或水冷使成形件冷却至室温，以使所述成形件内的CFRP树脂层固化。
可选的，制作CFRP树脂层时，相邻两层所述绝缘树脂层之间连续铺设三层所述碳纤维预浸料，且任意相邻两层所述碳纤维预浸料之间按照纤维走向垂直铺设。
可选的，所述绝缘树脂层为PEEK树脂层，所述金属板为铝合金板；所述CFRP树脂层铺设于两层所述铝合金板之间形成Al-CFRP-Al预成形件。
同时，本发明提出一种碳纤维金属层板，通过上述的碳纤维金属层板热冲压成形方法制作而成，包括：
第一金属板；
第二金属板，所述第二金属板与所述第一金属板相邻设置；
CFRP树脂层，所述CFRP树脂层铺设于所述第一金属板与所述第二金属板之间。
本发明相对于现有技术取得了以下技术效果：
本发明提供的碳纤维金属层板热冲压成形方法，利用碳纤维导电性辅助加热纤维金属层板。首先采用碳纤维电加热方式加热已预热的CFRP树脂层，使得碳纤维金属层板热量由内向外热传导，树脂受热更加均匀，减少了由于层间温度梯度过大引起的残余应力，提高了成形质量；同时，碳纤维电加热产热量大、电热转换率高，可和外部热源共用作用使金属层板快速加热至成形温度，缩短了成形时间，提高了成形效率，也进一步提高了成形质量。其中，碳纤维电加热通过控制电流强度来控制加热温度，可实现准确控制，适用于多种碳纤维增强树脂基金属层合板热冲压成形，实用性强。
本发明提出的碳纤维金属层板结构布置合理，适用于热冲压成形。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例所公开的碳纤维金属层板的成形流程图；
图2为本发明实施例所公开的碳纤维金属层板的铺层结构示意图；
图3为本发明实施例所公开的碳纤维金属层板成形温度变化曲线；
其中，附图标记为：1-CFRP树脂层，101-绝缘树脂层，102-90°碳纤维预浸料层，103-0°碳纤维预浸料，2-热压机，3-引线，4-外部电源，5-Al-CFRP-Al预成形件，501-铝合金板，6-V型模具，7-电极片，8-高温导电胶。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明的目的是提供一种碳纤维金属层板热冲压成形方法，以解决上述现有纤维金属层板热冲压成形质量低的问题。
本发明的另一目的是提供一种通过上述碳纤维金属层板热冲压成形方法制作而成的碳纤维金属层板。
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
实施例一
如图1-3所示，本实施例提供一种碳纤维金属层板热冲压成形方法，具体为一种利用碳纤维导电性辅助加热纤维金属层板的热冲压工艺，可用于碳纤维金属层板的热冲压快速成形。其具体实施步骤如下：
步骤1，制作CFRP树脂层1：将绝缘树脂层101和碳纤维预浸料按两层绝缘树脂层101之间设置碳纤维预浸料的方式进行铺层，形成CFRP树脂层1，并将电极片7通过高温导电胶8与碳纤维预浸料固定粘接于多层碳纤维预浸料间，作为优选方式，电极片7安装具体位置为碳纤维预浸料的两端，然后将电极片7的引线3引出，并将其与外部电源4电性连接。其中，上述以及下述的“CFRP”均是指“Carbon Fiber Reinforced Plastic”的缩写，表示碳纤维增强复合材料。
步骤2，预热：通过热压机2将CFRP树脂层1加热至一定温度，使树脂软化。
步骤3，将已预热的CFRP树脂层1铺设于两个已经过表面除污、喷砂及阳极氧化表面处理的金属板之间形成预成形件；在本实施例中，金属板优选采用铝合金板501，两层铝合金板501之间铺设CFRP树脂层1后形成的是Al-CFRP-Al预成形件5，即Al-CFRP-Al纤维金属层板。
步骤4，保持热压机2的加热状态，对电极片7通入直流电，利用碳纤维导电性继续加热Al-CFRP-Al预成形件5至树脂熔融温度Tm以上，同时利用热压机2向铝合金板501施加1～2MPa压力。
步骤5，冲压成形：热压机2卸压后，将连接电极片7的外部电源4断电，快速转移加热后的Al-CFRP-Al预成形件5至室温V型模具6上，通过压力机使V型模具6的凸模向下冲压，完成合模。
步骤6，冷却固化：上述凸模保持合模位置不变并保持冲压压力，V型模具6通过风冷或水冷等冷却方式使Al-CFRP-Al纤维金属层板冷却至室温，并使CFRP固化；
步骤7，脱模、取件：压力机卸压后，使V型模具6的凹模、凸模分开，并取出成形件。
本实施例中，如图2所示，给出了Al-CFRP-Al碳纤维金属层板的具体铺层结构，外部电源4能够通过引线3和电极片7向Al-CFRP-Al预成形件5中的碳纤维预浸料输出直流电流。
本实施例中，优选在上述步骤2中，使树脂软化的预热温度值在树脂玻化温度Tg和熔融温度Tm之间。
本实施例中，优选在上述步骤4中，保证Al-CFRP-Al预成形件5在5min内升温至树脂熔融温度Tm以上。
本实施例中，优选在上述步骤5中，保证Al-CFRP-Al预成形件5转移过程耗时不超过5s，以减少热量散失。
本实施例中，优选在上述步骤5中，凸模冲压速度在5mm/s～20mm/s之间。
本实施例中，优选在上述步骤6中，冲压的保压压力为1-2MPa。
上述可知，本实施例的碳纤维金属层板热冲压成形方法中，先预热CFRP树脂层1至树脂软化温度，然后将铝合金板501与已预热的CFRP树脂层1铺层，并给CFRP树脂层1通电，使CFRP树脂层1逐渐升温至成形温度，同时使铝合金板501在热压机2加热和CFRP树脂层1导热的双重加热条件下快速达到成形温度，且铝合金板501在加热过程还受到热压机2的压力作用，促进了树脂的充分流动和浸润，加热完毕后结合V型模具6实现模内热冲压和树脂固化一体化，最终获得所需具有一定弯曲形状的零件。
本实施例的碳纤维金属层板热冲压成形方法中，将碳纤维电加热的方式应用到纤维金属层板中，对已预热的碳纤维增强树脂基预浸料通电加热至预成形件达到成形温度，通过控制电源电流的方式来控制预成形体的温度，这种加热方法的温度易于控制，加热效率高，充分利用了碳纤维电热转换率高、发热量大、节能、寿命长等优点，使得Al-CFRP-Al纤维金属层板加热热量由内层向外层传出，受热更均匀，有利于提高层板成形质量。
在实际操作中，在CFRP树脂层1内预浸料层间两端分别埋设一电极片7，并将外部电源4的正极、负极分别通过引线3与预浸料层间的两个电极片7连接。
本实施例中，绝缘树脂层101优选为PEEK(聚醚醚酮，英文名称polyetheretherketone)树脂层。碳纤维预浸料中的碳纤维为导电材料，PEEK(聚醚醚酮，英文名称polyetheretherketone)树脂层为绝缘体，因此采用通电的方式对预浸料进行加热时，电流只从碳纤维预浸料中通过并产生焦耳热，同时碳纤维预浸料将自身产生的焦耳热传递给周围的树脂和铝板。铝合金板501与碳纤维预浸料间的PEEK树脂层优选设置为薄膜层，一方面可以阻隔铝合金板501直接与碳纤维预浸料接触，防止电位腐蚀；同时还可提供额外树脂，用于铝合金板501与CFRP树脂层1间的粘接，特别是碳纤维体积分数较大时，该PEEK树脂薄膜将会增强连接。
下面对上述纤维金属层板热冲压成形方法做具体实施说明。其中，纤维金属层板为Al-CFRP-Al碳纤维金属层板；所成形的零件为V形件；铝合金板501采用2024铝合金，铝合金板501尺寸为240×25×0.8mm；碳纤维预浸料采用CF/PEEK，其中，90°纤维方向的CF/PEEK预浸料的尺寸为240×25×0.2mm，0°纤维方向的CF/PEEK预浸料的尺寸为200×25×0.2mm，且CFRP树脂层1采用两层90°碳纤维预浸料层102(即上述90°纤维方向的CF/PEEK预浸料)之间夹设一层0°碳纤维预浸料103(即上述0°纤维方向的CF/PEEK预浸料)的方式；绝缘树脂层101采用PEEK薄膜层，尺寸为240×25×0.1mm；碳纤维预浸料中碳纤维的体积分数是60％；电极片7为矩形片状，紫铜材质，尺寸为20×25×0.2mm。
如图1所示，本实施例给出了Al-CFRP-Al碳纤维金属层板热冲压成形的流程，首先将铺层好的CFRP树脂层1放在热压机2中预热到一定温度，然后将已预热的CFRP树脂层1置于两层铝合金板501之间形成Al-CFRP-Al预成形件5，并给CFRP树脂层1通电，同时对铝合金板501施压，待Al-CFRP-Al预成形件5达到成形温度后，保温3min后迅速取出转移至V型模具6中冲压成形。具体步骤如下：
步骤1，在两个PEEK树脂薄层之间设置有2层90°碳纤维预浸料层102、一层0°碳纤维预浸料103，预浸料按纤维方向铺层顺序为90°-0°-90°，形成CFRP树脂层1。在中间的0°碳纤维预浸料103两端放置了电极片7，电极片7上下两表面涂了“越富”YF-6210高温导电胶8，电极片7由引线3引出；
步骤2，预热：通过热压机2将CFRP树脂层1加热至320℃，使树脂软化；
步骤3，将已预热CFRP树脂层1铺设于两层已经过表面除污、喷砂及阳极氧化表面处理的铝合金板501之间，形成Al-CFRP-Al预成形件5；
步骤4，保持热压机2加热状态，对电极片7通入直流电，在5min内加热Al-CFRP-Al预成形件5至390℃，同时向铝合金板501施加1MPa压力；
步骤5，冲压成形：卸压后，将连接电极片7的外部电源断电，5s内快速转移Al-CFRP-Al预成形件5至室温V型模具6上，通过压力机使凸模向下冲压，完成合模；
步骤6，冷却固化：合模后，凸模保持合模位置不变并保持冲压压力1MPa，V型模具6通过水冷使Al-CFRP-Al预成形件5冷却至室温，并使CF/PEEK固化；
步骤7，脱模、取件：卸压后，使V型模具6的凹模、凸模分开，并取出成形件。
上述可知，本实施例在两个PEEK(聚醚醚酮)树脂层间设置碳纤维预浸料，形成CFRP树脂层1，并在预浸料间固定粘接电极片7，电极片7由引线3引出；然后在热压机2中预热CFRP树脂层1至树脂软化温度；将已预热CFRP树脂层1置于两个铝合金板501间，形成Al-CFRP-Al预成形件5，并给CFRP树脂层1中的电极片7通电，同时给铝合金板501加热并施加压力；待预成形件加热至成形温度后，卸压，将预成形件快速转移至V型模具6中进行热冲压成形。通过采用碳纤维电加热和热压机共同加热使Al-CFRP-Al预成形件5能够快速达到成形温度，还将树脂固化过程中的保温保压阶段融合到了铝合金板的升温阶段，缩短了成形时间，使树脂浸润充分，层板受热更均匀，提高了成形效率和成形质量。
需要说明的是，实际操作中，碳纤维预浸料层并不限于上述三层结构，且采用按照纤维方向90°和0°交替铺层的方式，碳纤维预浸料层的铺设层数可以是1～20层，甚至更多层数。除此之外，碳纤维预浸料层可以全部按照纤维走向平行设置，可以全部是0°铺层，也可以全部都是90°铺层，还可以是任意切割角度，如30°、45°、-45°、60°等等，具有多种组合方式，比如设置7层碳纤维预浸料层，并按照[0°/90°/45°/-45°/45°/90°/0°]的铺设方式进行铺层也是可以的。具体碳纤维预浸料层的设置层数以及相邻层之间的纤维走向布置，可根据实际需求而定。
实施例二
本实施例给出另一种Al-CFRP-Al碳纤维金属层板热冲压成形的流程，首先将铺层好的CFRP树脂层1放在热压机2中预热到一定温度，然后将已预热的CFRP树脂层1置于两层铝合金板501之间形成Al-CFRP-Al预成形件5，并给CFRP树脂层1通电，同时对铝合金板501施压，待Al-CFRP-Al预成形件5达到成形温度后，保温3min后迅速取出转移至V型模具6中冲压成形。
具体步骤如下：
步骤1，在两个PEEK树脂薄层之间设置有3层90°碳纤维预浸料层102、2层0°碳纤维预浸料103，预浸料按纤维方向铺层顺序为90°-0°-90°-0°-90°，形成具有5层碳纤维预浸料层的CFRP树脂层1。在中间的90°碳纤维预浸料102两端放置了电极片7，电极片7上下两表面涂了“越富”YF-6210高温导电胶8，电极片7由引线3引出；
步骤2，预热：通过热压机2将CFRP树脂层1加热至300℃，使树脂软化；
步骤3，将已预热CFRP树脂层1铺设于两层已经过表面除污、喷砂及阳极氧化表面处理的铝合金板501之间，形成Al-CFRP-Al预成形件5；
步骤4，保持热压机2加热状态，对电极片7通入直流电，在5min内加热Al-CFRP-Al预成形件5至390℃，同时向铝合金板501施加2MPa压力；
步骤5，冲压成形：卸压后，将连接电极片7的外部电源断电，5s内快速转移Al-CFRP-Al预成形件5至室温V型模具6上，通过压力机使凸模向下冲压，完成合模；
步骤6，冷却固化：合模后，凸模保持合模位置不变并保持冲压压力2MPa，V型模具6通过风冷使Al-CFRP-Al预成形件5冷却至室温，并使CF/PEEK固化；
步骤7，脱模、取件：卸压后，使V型模具6的凹模、凸模分开，并取出成形件。
由此可见，本实施例的碳纤维金属层板热冲压成形方法，首先在两个PEEK(聚醚醚酮)树脂层间设置碳纤维预浸料，形成CFRP树脂层1，并在预浸料间固定粘接电极片7，电极片7由引线3引出；然后在热压机2中预热CFRP树脂层1至树脂软化温度；将已预热CFRP树脂层1置于两个铝合金板501间，形成Al-CFRP-Al预成形件5，并给CFRP树脂层1通电，同时给铝合金板501加热并施加压力；待Al-CFRP-Al预成形件5加热至成形温度后，卸压，将Al-CFRP-Al预成形件5快速转移至V型模具6中进行热冲压成形。本实施例采用碳纤维电加热和热压机共同加热使Al-CFRP-Al预成形件5能够快速达到成形温度，还将树脂固化过程中的保温保压阶段融合到了铝合金板501的升温阶段，缩短了成形时间，使树脂浸润充分，层板受热更均匀，提高了成形效率和成形质量。
需要说明的是，对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内，不应将权利要求中的任何附图标记视为限制所涉及的权利要求。
本发明中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处。综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

1.一种碳纤维金属层板热冲压成形方法，其特征在于，包括：
预热CFRP树脂层至树脂软化温度；
将金属板与预热完成的CFRP树脂层铺层形成预成形件；
对所述预成形件的外层加热，同时给所述预成形件内的CFRP树脂层通电，以使所述金属板在外部加热和CFRP树脂层导热的双重加热条件下达到成形温度；
将达到成形温度的预成形件冲压成形。
2.根据权利要求1所述的碳纤维金属层板热冲压成形方法，其特征在于，预热CFRP树脂层之前，还包括CFRP树脂层的制作；其中，
所述CFRP树脂层的制作包括：
将绝缘树脂层和碳纤维预浸料按照相邻两层所述绝缘树脂层之间设置至少一层所述碳纤维预浸料的方式进行铺层，形成CFRP树脂层；
将电极片通过导电胶粘接于所述碳纤维预浸料，并将所述电极片的导线引出。
3.根据权利要求1所述的碳纤维金属层板热冲压成形方法，其特征在于，采用热压机将CFRP树脂层预热至所述树脂软化温度，所述树脂软化温度位于树脂玻化温度和树脂熔融温度之间。
4.根据权利要求1所述的碳纤维金属层板热冲压成形方法，其特征在于，采用热压机对所述预成形件的外层加热并施压，并使所述预成形件在5min内升温至所述成形温度，且所述成形温度不小于树脂熔融温度。
5.根据权利要求1所述的碳纤维金属层板热冲压成形方法，其特征在于，将达到成形温度的预成形件移至冲压模具，以对预成形件冲压成形；其中，达到成形温度的预成形件在5s之内转移至所述冲压模具。
6.根据权利要求1所述的碳纤维金属层板热冲压成形方法，其特征在于，所述冲压模具为V型模具；所述V型模具的凸模在压力机的驱使下向下冲压，完成合模；所述凸模的冲压速度为5mm/s～20mm/s。
7.根据权利要求1所述的碳纤维金属层板热冲压成形方法，其特征在于，对预成形件完成冲压成形之后，还包括依次进行的冷却固化、脱模和取件步骤；其中，所述冷却固化包括：
保持所述冲压模具中凸模的位置不变并保持冲压压力1-2MPa；
通过风冷或水冷使成形件冷却至室温，以使所述成形件内的CFRP树脂层固化。
8.根据权利要求2所述的碳纤维金属层板热冲压成形方法，其特征在于，制作CFRP树脂层时，两层所述绝缘树脂层之间连续铺设三层所述碳纤维预浸料，且任意相邻两层所述碳纤维预浸料之间按照纤维走向垂直铺设。
9.根据权利要求2所述的碳纤维金属层板热冲压成形方法，其特征在于，所述绝缘树脂层为PEEK树脂层，所述金属板为铝合金板；所述CFRP树脂层铺设于两层所述铝合金板之间形成Al-CFRP-Al预成形件。
10.一种碳纤维金属层板，其特征在于，通过权利要求1～9任意一项所述的碳纤维金属层板热冲压成形方法制作而成，包括：
第一金属板；
第二金属板，所述第二金属板与所述第一金属板相邻设置；
CFRP树脂层，所述CFRP树脂层铺设于所述第一金属板与所述第二金属板之间。
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CN114888157A (zh) * 2022-04-14 2022-08-12 武汉理工大学 电磁超声辅助纤维金属层板冲压变形方法
CN114918306A (zh) * 2022-05-27 2022-08-19 上海交通大学 用于金属树脂层合结构的注射-冲压成形方法与装置

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CN114888157A (zh) * 2022-04-14 2022-08-12 武汉理工大学 电磁超声辅助纤维金属层板冲压变形方法
CN114918306A (zh) * 2022-05-27 2022-08-19 上海交通大学 用于金属树脂层合结构的注射-冲压成形方法与装置

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