CN108138822B - 异材面板结构体 - Google Patents
异材面板结构体 Download PDFInfo
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- CN108138822B CN108138822B CN201780003668.3A CN201780003668A CN108138822B CN 108138822 B CN108138822 B CN 108138822B CN 201780003668 A CN201780003668 A CN 201780003668A CN 108138822 B CN108138822 B CN 108138822B
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- rivet
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- resin layer
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明提供异材面板结构体。异材面板结构体的外面板具有卷边部,该卷边部在形成于周缘部的折弯部经由树脂层而保持内面板的周缘部。铆钉的轴部贯穿外面板,在轴部的前端形成有铆钉轴凹部。在内面板设置有内突起部,在铆钉轴凹部内配置内突起部。在铆钉轴凹部与内突起部的前端接触的部位形成有熔融焊点,在内突起部与外面板之间形成有包括树脂层与空隙中的至少树脂层的第一隔热部。
Description
技术领域
本发明涉及异材面板结构体。
背景技术
在汽车等车辆中,为了提高行驶性、操作性或者燃料消耗率而谋求车身的轻量化。因此,在各种汽车车身部件中,代替迄今为止的钢铁材料,转而开始应用如铝合金等那样的比重小的材料。例如,罩体(引擎盖)、车门、行李箱等汽车面板结构体是由外面板(外板)与内面板(内板)构成的中空结构体,但作为这些面板的材料而对铝合金件的利用进行研究。
在该情况下,能够将外面板以及内面板的双方变更为铝合金板,但也能够设为使与各面板的要求特性相应的特性的原料彼此相互组合的异材面板结构体。具体而言,考虑利用铝合金板形成被要求设计性、轻量性以及碰撞能量的吸收性等的外面板,利用成形性优异的钢板形成形状复杂且成形深度深的内面板。
作为使用由铝合金形成的外面板以及由钢板形成的内面板来制造异材面板结构体的方法,例如具有通过折返外面板的周缘部而夹入内面板的凸缘周缘部的卷边加工(折边加工)相互形成为一体的方法。在该方法中,通常,在外面板与内面板之间,利用环氧系树脂、聚酯系树脂、酚醛系树脂等热固化性树脂,设置有也兼做用于防止电腐蚀的绝缘层的粘接剂层(树脂层)。
在该情况下,在外面板与内面板之间夹着树脂粘接剂层、树脂粘接胶带层的状态下进行焊接。但是,除了TIG焊接之外,采用MIG用焊接、激光焊接、点焊的任一个的焊接方法,也有可能在焊接部的接合界面产生较脆的金属间化合物(例如,铝与铁的金属间化合物即Al2Fe5)而无法获得充分的接合强度。
因此,为了提高铝合金板与钢板的接合强度,提出了对冲裁铝合金板的钢制的铆钉与钢板进行点焊的方法(参照专利文献1)。此外,为了防止来自点焊时的熔融焊点的热影响,提出了在内板设置朝外板侧突出的隆起部的方法(参照专利文献2)。进而,也提出了对设置有隆起部(或者突起部)的内板进行卷边加工的方法(参照专利文献3)。
在先技术文献
专利文献
专利文献1:日本特开2015-164840号公报
专利文献2:日本特开昭56-80380号公报
专利文献3:日本特开2008-229697号公报
发明内容
如专利文献1所记载的方法那样,在将铆钉用于外面板(铝合金板)与内面板(钢板)的接合的情况下,铆钉与内面板都是钢材,因此,不会在接合部分处产生Al2Fe5那样的较脆的金属间化合物。
但是,在将该方法应用于外面板的卷边加工的情况下,存在如下情况:由于从因点焊而产生的铆钉前端的熔融焊点传递的热量,在外面板产生鼓出部,从而显著地损害面板产品的外观。
因此,如专利文献2所记载的那样,在内面板设置朝外面板侧突出的突出部(隆起部),利用该突起部内的空间防止热量的传递的方法是有效的。
但是,在设置这样的突出部的情况下,难以进行卷边加工。即,设置有突出部的部位与除此以外的部位的变形状态不同,因此,需要外面板侧的折弯部的形成等预备加工。
此外,从外面板的外观设计性的观点出发,优选减小卷边弯曲部的曲率半径,但如果在内面板存在突出部,则无法减小卷边弯曲部的曲率半径。
因此,本发明的目的在于提供一种能够将由铝板或者铝合金板构成的外面板与由钢板构成的内面板牢固地接合、且外面板的卷边弯曲部的曲率半径比以往小的异材面板结构体。
解决方案
本发明由下述结构构成。
一种异材面板结构体,
所述异材面板结构体具备:
外面板,其由铝板或者铝合金板构成;
内面板,其面对所述外面板配置且由钢板构成;以及
钢制的铆钉,其具有头部以及轴部,
其中,
所述外面板形成有卷边部,该卷边部具有将周缘部折弯而成的卷边弯曲部、以及从该卷边弯曲部到外面板周缘的折返部,
在所述卷边部的内侧面经由树脂层而保持所述内面板的周缘部,
所述铆钉配置成,所述头部卡止于所述外面板,所述轴部从所述外面板的所述折返部的外侧面朝向所述内面板贯穿所述外面板,
在所述铆钉的轴部前端的中央部形成有朝向所述头部凹陷的铆钉轴凹部,
在所述内面板的与所述铆钉相对的位置设置有朝所述铆钉侧突出的内突起部,
在所述铆钉轴凹部内配置所述内突起部,在所述铆钉轴凹部的中央部与所述内突起部的前端接触的部位形成有熔融焊点,
在所述内突起部与所述外面板之间形成有包括所述树脂层与空隙中的至少所述树脂层的第一隔热部。
此外,也可以构成为,在上述异材面板结构体中,在所述铆钉轴凹部与所述内突起部之间形成有包括所述树脂层与空隙中的至少所述树脂层的第二隔热部。
此外,也可以构成为,所述铆钉处于所述头部与所述轴部中的至少一方被铆接于所述外面板的状态。
发明效果
根据本发明,能够获得将由铝板或者铝合金板构成的外面板与由钢板构成的内面板牢固地接合、且外面板的卷边弯曲部的曲率半径比以往小的异材面板结构体。
附图说明
图1是表示本发明所涉及的异材面板结构体的卷边部的结构的剖视图。
图2是表示图1的异材面板结构体的铆钉与内面板的接触状态的剖视图。
图3A是表示图1所示的卷边部的刚卷边加工后的剖视图。
图3B是作为参考例的卷边部的剖视图。
图4A是例示内面板的突起部的形状的剖视图。
图4B是例示内面板的突起部的另一形状的剖视图。
图5A是表示铆钉的另一结构例的剖视图。
图5B是表示铆钉的又一结构例的剖视图。
图5C是表示铆钉的再一结构例的剖视图。
图6是表示铆钉与内面板的点焊方法的一例的立体图。
具体实施方式
以下,参照附图对本发明的实施方式进行详细说明。
<异材面板结构体的结构>
图1是表示异材面板结构体的卷边部的结构的剖视图。
本结构的异材面板结构体100具有外面板10、内面板20以及铆钉30。外面板10由铝板或者铝合金板构成。内面板20由钢板构成,面对外面板10配置。铆钉30由钢材构成,具有头部31以及轴部32。外面板10在其周缘部形成有卷边部12,内面板20的周缘部经由树脂层40保持于该卷边部12的内侧面。卷边部12具有折弯外面板10的周缘部而成的卷边弯曲部12a、以及从卷边弯曲部12a到外面板10的周端缘的折返部12b。该卷边部12可以形成于外面板10的周缘部的一部分,也可以遍及周缘部整周形成。
在沿着外面板10的卷边部12的多个部位设置有铆钉30。铆钉30以其轴部32从折返部12b侧朝向内面板20突出的方式配置。铆钉30的头部31通过铆接而卡止于外面板10。此外,铆钉30的轴部32贯穿卷边部12的折返部12b。
图2是表示图1的异材面板结构体的铆钉30与内面板20的接触状态的剖视图。
在铆钉30的轴部32的前端的中央部设置有朝头部31侧凹陷的铆钉轴凹部33。另一方面,在内面板20的与铆钉30相对的位置设置有朝铆钉30侧突出的内突起部21,在铆钉轴凹部33内配置内突起部21。
并且,如图1所示,在铆钉轴凹部33的中央部(最里部)与内突起部21的前端接触的部位P形成有熔融焊点50。
图3A是图2所示的铆钉30以及内面板20与外面板10接合的卷边部12的剖视图。
在内突起部21的与铆钉30相反侧的面与面对该面的外面板10之间形成有间隙S1。此外,在铆钉轴凹部33与内突起部21之间形成有间隙S2。该间隙S2通过内突起部21的倾斜比铆钉轴凹部33的倾斜更陡峭而形成。进而,在铆钉30的轴部32的周围的内面板20与外面板10之间形成有间隙S3、S4。
在间隙S1、S2形成有树脂层40或者由树脂层40与空隙构成的隔热部。例如,在图1所示的情况下,在图3A所示的间隙S1形成有具有树脂层40与空隙43的第一隔热部45A,在图3A所示的间隙S2形成有由树脂层40构成的第二隔热部45B。需要说明的是,也可以利用树脂层40填充间隙S1的整体,不过对此未予图示。
此外,在图2所示的铆钉轴凹部33与内突起部21之间的间隙S2如图1所示那样配置树脂层40,或者虽未图示但树脂不流动而在一部分形成空隙。因此,铆钉轴凹部33与内突起部21之间的第二隔热部45B由树脂层40或者树脂层40与空隙形成。
也就是说,具有第一隔热部45A与第二隔热部45B的隔热部45构成为包括树脂层40与空隙中的至少树脂层40,且兼具外面板10与内面板20的接合功能与隔热功能。
进而,在间隙S3、S4形成有树脂层40,将外面板10与内面板20接合。
上述结构的异材面板结构体100的铆钉固定顺序如下所述。
首先,在外面板10的周缘部涂布树脂粘接剂、树脂密封材料来设置粘接剂层,或者在周缘部粘贴树脂粘接胶带。其次,向外面板10的周缘部打入铆钉30。并且,将安装有铆钉30的外面板10的周缘部与内面板20的周缘部组合并实施卷边弯曲。通过该卷边弯曲,在前述的间隙S1形成树脂层40与空隙43,在间隙S2形成树脂层40。
其次,在使铆钉轴凹部33的中央部(最里部)与内突起部21的前端接触的状态下,对双方的接触部分进行点焊。由此,在铆钉轴凹部33与内突起部21之间形成熔融焊点50,将外面板10与内面板20经由铆钉30接合。
根据通过上述顺序而被固定的异材面板结构体100,向铆钉30的轴部前端的铆钉轴凹部33的内侧插入内面板20的内突起部21。由此,如图3A所示,即便内突起部21朝铆钉30侧突出,该内突起部21的突出部分也收容于铆钉轴凹部33。因此,能够减小外面板10的卷边弯曲部12a的曲率半径R1。与此相对地,在铆钉30的轴部32的前端不具有凹部的通常的铆钉中,如图3B的参考图所示,当折弯外面板10时,铆钉35的轴部36的前端面36a与内突起部21发生干涉。因此,无法减小折弯外面板10而成的卷边弯曲部12a的曲率半径R2。
在图3A的例子中,将作为外面板10的露出侧的主面10a与从主面10a反转而成为折返部12b的背面10b卷边加工成相互平行的大的曲率(1/R1)。由此,能够获得具有平坦的折返部12b的外观设计性优异的卷边部12。与此相对地,在使用了通常的铆钉的异材面板结构体中,如图3B所示,弯曲加工的曲率(1/R2)不足,无法提高卷边部12的接合强度、外观设计性。
进而,根据本结构的异材面板结构体100,利用形成于内突起部21与外面板10之间的间隙S1的第一隔热部、以及形成于铆钉轴凹部33与内突起部21之间的第二隔热部,抑制从熔融焊点50朝外面板10的热传递。由此,外面板10受到的从熔融焊点50传递的热影响减轻,不会在外面板10的主面10a产生因热量而引起的鼓出部。也就是说,根据本结构,能够以大的曲率对外面板10的周缘部进行弯曲加工,而且,能够获得高质量且外观设计性优异的卷边部12。
此外,根据本结构,如图3A所示,内突起部21的前端部与铆钉轴凹部33的最里部接触,由此能够使焊接电流向两者的接触部集中流动。其结果是,能够在接近铆钉30的头部31的部位形成熔融焊点50,由此,能够将熔融焊点50形成于从外面板10尽量分离的部位。因此,能够抑制外面板10被来自熔融焊点50的热影响波及。
并且,第二隔热部45B与形成于内突起部21与外面板10之间的第一隔热部45A所产生的热传递抑止效果相配合,进一步抑制从熔融焊点50向外面板10的热传递。
此外,在形成有熔融焊点50的部分中,由于内面板20与铆钉30都由钢材形成,所以不会在两者的接合部产生较脆的金属间化合物,能够长时间获得高的接合强度。
需要说明的是,本结构的异材面板结构体100除了罩体(引擎盖)之外,还能够适当应用于行李箱、车门面板等汽车车身用的各种构件。并且,异材面板结构体100根据各面板用途,其立体形状、平面形状以及卷边加工的施工范围不同。
其次,以下对上述结构的异材面板结构体100的各部的具体结构进行详细说明。
<外面板>
外面板10是朝向车身外侧整体地成三维的圆弧状弯曲的平板状构件,通过使用冲压成形等各种成形方法将铝板或者铝合金板成形为规定形状而获得。
外面板10所使用的铝合金能够根据强度、成形性以及耐腐蚀性等所应用的车身结构的要求特性而适当选择,例如能够使用由JIS规格(JISH0001:1998)、AA规格规定的3000系、5000系、6000系以及7000系等的铝合金。为了使汽车等的车身轻量化,从薄壁化的观点出发,有优选将高强度且成形性也优异的铝合金用于外面板10。
具体而言,优选为6N01、6016、6111以及6022等那样,组成中的硅与镁的比(=Si/Mg)为1以上,相对于Mg而过剩地含有Si的Si过剩型的6000系铝合金。这些6000系铝合金板具有当成形为外面板10时,降低强度(屈服强度)以确保成形性,在随后的涂装烘烤处理中,通过150~180℃的低温且10~50分钟左右的短时间的人工时效处理,进行时效硬化而强度(屈服强度)变高的特性(烘烤硬化性、BH性)。
前述的铝合金件在冷轧、热挤压之后进行固溶处理以及淬火处理(状态代号T4),随后进行冲压成形加工等的加工而成为规定的形状,成为外面板10的冲压成形原料。再之后,组装于车身,通过烧结涂装进行时效处理(状态代号T6等)、过时效处理(状态代号T7)等。
外面板10用的铝合金板的厚度(板厚)从兼顾汽车车身的轻量化、强度、刚性以及成形性等作为外面板10的要求特性的观点出发,一般从0.5~3mm的范围适当选择。此外,在铝合金板的厚度过薄的情况下,存在无法确保作为汽车构件而需要的强度、刚性。另一方面,如果铝合金板的厚度过厚,则无法实现汽车车身的轻量化,也难以进行卷边加工。
<内面板>
内面板20是剖面形状为帽(HAT)形的构件,例如通过使用冲压成形等的各种成形方法将铁板或者钢板等铁合金板成形为规定的帽形状而获得。此外,在内面板20的至少配置铆钉30的部分形成中空状的内突起部21。
内突起部21为中空状且收容于铆钉轴凹部33,但其外形并无特别限定。例如,除了图4A所示的拱顶形状(部分球面形状)、图4B所示的锥形状之外,还能够应用棱柱状、加强肋形状等各种形状。
此外,内突起部21的高度也没有特别限定,能够根据应用构件适当选择。内突起部21的高度例如优选为0.1~2.0mm,更优选为0.3~1.5mm。通过将内突起部21的高度设为该范围,如图1所示,在内突起部21与外面板10之间形成第一隔热部45A,在铆钉轴凹部33与内突起部21之间形成第二隔热部45B。利用这些隔热部45,当进行焊接接合时能够防止熔融焊点50的热量朝外面板10传递。此外,在通过点焊进行接合的情况下,能够防止基于电极所产生的按压力施加于外面板10。
另一方面,在内面板20所使用的钢板可以在其表面通过电镀等而被覆通用的锌系、铝系的被覆层,也可以是裸材。本结构的异材面板结构体100所使用的钢材也能够与现有的钢制内面板相同使用廉价的软钢板,但也能够应用高张力钢(高强度钢板)、不锈钢等冷轧钢板。
此外,内面板20所使用的钢板的厚度(板厚)从兼顾汽车车身的轻量化、强度、刚性以及成形性等作为内面板20的要求特性的观点出发,能够在0.3~3mm的范围内适当选择。但是,如果钢板的厚度过薄,则存在无法确保作为汽车构件而需要的强度、刚性的情况。此外,如果钢板的厚度过厚,则难以实现汽车车身的轻量化。
<卷边部>
卷边部12通过将外面板10的周缘部卷边弯曲(折弯)而形成,在该外面板10的卷边部12经由树脂层40结合内面板20。卷边部12的卷边形状可以是平卷边、绳索卷边(ropedhem)的任一个。图1以及图3A所例示的卷边部12是平卷边的卷边形状,能够通过使用了冲模的折弯加工或使用了辊的加工而形成。
<铆钉>
图5A~图5C是表示铆钉30的结构例的剖视图。铆钉轴凹部33的形状并无特别限定,只要能够收容内突起部21即可。例如,拱顶形状(图5A)能够选择锥台形状(图5B)、锥形状(图5C)等各种形状。此外,铆钉30的头部31以及轴部32的形状及其大小也能够根据用途、方法适当选择。
需要说明的是,在通过点焊进行焊接接合的情况下,优选在铆钉30的与外面板10接触的部分,设置有与构成内面板20的材料(钢材)相比电阻率高的(以下,记为“高电阻”)材料构成的皮膜。通过设置这样的高电阻的皮膜,能够防止点焊时的焊接电流向外面板10分流而导致焊接部的电流降低。
作为设置于铆钉30的高电阻皮膜的具体例,可举出包括锌、铅以及铝等电阻率比较低的金属的皮膜、包括聚酯系树脂、硅系树脂等合成树脂的皮膜、铁的氧化皮膜(黑皮)、无电解镀Ni-P皮膜等。设置于铆钉30的高电阻皮膜可以是使用disgo(注册商标)、geomet(注册商标)以及rafre(注册商标)等市售的表面处理剂形成的绝缘皮膜。
进而,优选铆钉30的头部31与轴部32中的至少一方铆接于外面板10。通过将铆钉30铆接紧固于外面板10,能够防止焊接前的铆钉30的脱离。此外,即便在焊接后树脂层40随时间劣化也能够维持与外面板10的最低接合强度。
对于铆接紧固,可以将铆钉30打入外面板10,使外面板10向铆钉30的头部31塑性流动,也可以预先在外面板10开设下孔,使外面板10向铆钉30的头部31塑性流动。
<树脂层>
如图1所示,本实施方式的异材面板结构体100在卷边部12中的外面板10与内面板20之间设置有树脂层40。并且,当将外面板10的周缘部折返时,经由树脂层40夹入内面板20的凸缘周缘部而形成为一体。由此,形成外面板10的周缘部与内面板20的凸缘周缘部经由树脂层40组合的层叠结构的卷边部12,一体化为异材面板结构体100。
当形成树脂层40时,在卷边加工(尤其是平卷边加工)中,在将外面板10的周缘部折返而夹入内面板20的凸缘周缘部之前,在与之对置的外面板10的周缘部的内侧区域涂布热固化性树脂或者热塑性树脂等的树脂粘接剂、树脂密封材料,或者粘贴树脂粘接胶带即可。为了防止由于铝与铁的异材彼此直接接触而产生的电腐蚀且提高异材彼此(异材面板结构体)的接合强度,优选遍及外面板10的周缘部整体(以包围的方式)塗布或者设置树脂层40。作为形成树脂层40的粘接剂、胶带、密封胶,例如使用环氧树脂、聚酯树脂以及酚醛树脂。
<焊接方法>
铆钉30与内面板20通过点焊而接合。点焊可以为利用电极夹入焊接部,在板厚方向流动电流来进行焊接的直接点焊,也可以是如图6所示那样仅在铆钉30的头部31侧配置多个电极48,通过作为焊接对象的内面板20在电极48间流动电流来进行焊接的间接点焊。
在进行点焊的情况下,为了确保外面板10的表面平滑性,优选一边将板抵靠于外面板10侧一边进行焊接。此时,所使用的板优选为由钢板等导热性高的材料构成或者具备供制冷剂流通的流路的面板或者块构件。
在进行激光焊接的情况下,也可以从铆钉30的头部31照射激光束,形成供铆钉30贯穿的熔融接合部,与作为焊接对象的内面板接合。
当对铆钉30与内面板20进行焊接时,在铆钉30与内面板20的接触部形成高热的熔融焊点50。但是,在本结构的异材面板结构体100中,在接合部分中的内面板20与外面板10之间形成因内突起部21而产生的间隙S1、S2。其结果是,在内突起部21的背侧的间隙S1,在与外面板10之间形成第一隔热部45A,进而在内突起部21与铆钉轴凹部33之间的间隙S2也形成第二隔热部45B。由此,点焊的时向外面板10的热传递被截断或者显著变小。其结果是,减少外面板10的软化,抑制因铆钉30的前端的压入而引起的外面板10的鼓出,能够制造设计性优异的外观的汽车面板。
如上所述,在本说明书中公开了如下的事项。
(1)一种异材面板结构体,
所述异材面板结构体具备:
外面板,其由铝板或者铝合金板构成;
内面板,其面对所述外面板配置且由钢板构成;以及
钢制的铆钉,其具有头部以及轴部,
其中,
所述外面板形成有卷边部,该卷边部具有将周缘部折弯而成的卷边弯曲部、以及从该卷边弯曲部到外面板周缘的折返部,
在所述卷边部的内侧面经由树脂层而保持所述内面板的周缘部,
所述铆钉配置成,所述头部卡止于所述外面板,所述轴部从所述外面板的所述折返部的外侧面朝向所述内面板贯穿所述外面板,
在所述铆钉的轴部前端的中央部形成有朝向所述头部凹陷的铆钉轴凹部,
在所述内面板的与所述铆钉相对的位置设置有朝所述铆钉侧突出的内突起部,
在所述铆钉轴凹部内配置所述内突起部,在所述铆钉轴凹部的中央部与所述内突起部的前端接触的部位形成有熔融焊点,
在所述内突起部与所述外面板之间形成有包括所述树脂层与空隙中的至少所述树脂层的第一隔热部。
上述结构的异材面板结构体配置成,在铆钉的轴部的前端设置凹部,在该凹部内收纳内面板20的突起部,由此,能够抑制熔融焊点所造成的热影响,并且能够减小卷边弯曲部的曲率半径。因此,与使用不设置能够收容内面板的突起部的部分(凹部)的通常的铆钉的情况相比,能够以较大的曲率进行弯曲加工,能够获得外观设计性优异的卷边部。
(2)在(1)的异材面板结构体中,在所述铆钉轴凹部与所述内突起部之间形成有包括所述树脂层与空隙中的至少所述树脂层的第二隔热部。
上述结构的异材面板结构体在铆钉的凹部与内面板的突起部之间形成有第二隔热部。利用该第二隔热部,与形成于内面板的突起部与外面板之间的第一隔热部所产生的热传递抑止效果相配合,能够有效地抑制熔融焊点所造成的热影响。
(3)在(1)或者(2)所记载的异材面板结构体中,所述铆钉处于所述头部与所述轴部中的至少一方被铆接于所述外面板的状态。
上述结构的异材面板结构体能够防止在焊接前铆钉从外面板脱离,并且在焊接后排除树脂层随时间劣化的影响,能够维持铆钉与外面板的最低接合强度。
本申请基于2016年3月8日提出的日本申请(特愿2016-44222),将其内容作为参照而援引于此。
附图标记说明:
10:外面板;
12:卷边部;
12a:卷边弯曲部;
12b:折返部;
20:内面板;
21:内突起部;
30:铆钉;
31:头部;
32:轴部;
33:铆钉轴凹部;
40:树脂层;
45A:第一隔热部;;
45B:第二隔热部;
45:隔热部;
50:熔融焊点;
100:异材面板结构体。
Claims (3)
1.一种异材面板结构体,具备:
外面板,其由铝板或者铝合金板构成;
内面板,其面对所述外面板配置且由钢板构成;以及
钢制的铆钉,其具有头部以及轴部,
其中,
所述外面板形成有卷边部,该卷边部具有将所述外面板的周缘部折弯而成的卷边弯曲部、以及从该卷边弯曲部到外面板周缘的折返部,
在所述卷边部的内侧面经由树脂层而保持所述内面板的周缘部,
所述铆钉配置成,所述头部卡止于所述外面板,所述轴部从所述外面板的所述折返部的外侧面朝向所述内面板贯穿所述外面板,
在所述铆钉的轴部前端的中央部形成有朝向所述头部凹陷的铆钉轴凹部,
在所述内面板的与所述铆钉相对的位置设置有朝所述铆钉侧突出的内突起部,
在所述铆钉轴凹部内配置所述内突起部,在所述铆钉轴凹部的中央部与所述内突起部的前端接触的部位形成有熔融焊点,
在所述内突起部与所述外面板之间形成有包括所述树脂层与空隙中的至少所述树脂层的第一隔热部。
2.根据权利要求1所述的异材面板结构体,其中,
在所述铆钉轴凹部与所述内突起部之间形成有包括所述树脂层与空隙中的至少所述树脂层的第二隔热部。
3.根据权利要求1或2所述的异材面板结构体,其中,
所述铆钉处于所述头部与所述轴部中的至少一方被铆接于所述外面板的状态。
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PCT/JP2017/005241 WO2017154479A1 (ja) | 2016-03-08 | 2017-02-14 | 異材パネル構造体 |
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CN110332194B (zh) * | 2019-06-21 | 2020-10-09 | 燕山大学 | 热塑性纤维增强金属层压板用胶铆铆钉 |
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EP3428462A4 (en) | 2019-10-09 |
KR102001797B1 (ko) | 2019-07-18 |
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