All Carbon Fibre articles – Page 5

  • OLYMPUS DIGITAL CAMERA
    Article

    Cost-effective composites

    2016-01-07T18:12:53Z

    As OEMs explore reinforced plastics, the composites industry is preparing to capitalise on this trendUS materials supplier Cytec Industries has done well out of the aerospace industry's switch from metal to carbon fibre-reinforced plastic (CFRP)-intensive aircraft, and the company sees the automotive industry as key to its future growth. In ...

  • 06_CMYK-ARENA-2036-stills_kleinWEB
    Article

    Tomorrow's automotive world

    2016-01-04T14:24:41Z

    What will vehicle manufacturing look like in a few decades' time, and how will production be controlled?An initiative called ARENA2036, which is being carried out by the Fraunhofer IPA in Stuttgart, Germany, aims to explore and shape three areas in the design and manufacture of automobiles as they develop over ...

  • Article

    BMW heading for record production

    2015-12-17T14:05:52Z

    Germany – The company said its international manufacturing network “has shown an excellent capacity utilisation” in 2015 due to high customer demand and the launch of multiple new models such as the BMW 7 Series. This level of production was enabled by the flexible manufacturing processes implemented at its facilities.“The ...

  • Norman.M20C-Right-Side_2.5x1.5x300ppi
    Article

    Polymers with power

    2015-12-11T11:12:22Z

    Composites are now being explored as alternative materials for engine-cylinder housings and may soon become mainstream – enabling the production of lighter-weight powertrains and more fuel-efficient vehiclesIn as little as three years, automotive engine housings made of polymer materials will start to enter the market as volume production items. That ...

  • Greenautoo Bus
    Article

    A bus to the future

    2015-11-20T12:47:00Z

    Chinese entrepreneurial bus company, Greenautoo, is preparing to launch of a series of smart, safe and green vehicles that could be the solution to big city traffic congestion, write Jan Hökerberg and Crystal Yan. Bus travel is often a nightmare for China’s many millions of commuters, especially in rush ...

  • Trumpf
    Article

    Shine the laser light

    2015-11-20T12:19:33Z

    Fibre-reinforced composites are popular, but tough to machine. So production engineers are turning to laser light as a choice of tool, writes Trumpf’s Marc KirchhoffCarbon fibre-reinforced plastics (CFRPs) are all the rage, especially in the automotive, aviation and wind power sectors. They represent a key part of the solution to ...

  • 3D-printed parts, BMW
    Article

    BMW celebrates 25 years of 3D printing

    2015-11-18T16:24:20Z

    Germany – In 1990, the OEM’s Rapid Technologies Center in Munich commissioned the development of its first additive manufacturing facilities, and that year prototype parts were made on a stereolithography machine. Early examples featured on concept cars; BMW later developed further procedures and applications in line with component specifications.Today, the ...

  • LX
    Article

    UK joins global composites competition

    2015-11-16T09:58:21Z

    If the number of exhibitors and visitors involved in the production of vehicles at this month’s Advanced Engineering 2015 (AE2015) show in Birmingham was anything to go by, the UK’s automotive industry is in rude health.This impression is supported by the statistics. According to the Society for Motor Manufacturers and ...

  • BMW 7-Series
    Article

    Sticking together

    2015-11-12T09:20:12Z

    Engineers are developing processes for composites to be incorporated into high-volume vehicle productionIncorporating composite components into automotive structures – joining them to other composite parts and, perhaps more importantly, to parts made from metals – presents a new set of challenges. Resistance spot welding has been used by carmakers to ...

  • Dreistern
    Article

    Ready to roll

    2015-11-02T13:02:44Z

    Rollforming innovations are supporting the crucial development targets of cost saving and weight reduction, writes Heinrich Weber, director of sales and marketing at Dreistern Rollforming has demonstrated its capability to process ultra-high strength steels (UHSS) with a tensile strength up to 1,600MPa. Such steels already contribute significantly toward reducing the ...

  • iStream Carbon, Gordon Murray
    Article

    Gordon Murray debuts iStream Carbon

    2015-10-28T10:24:37Z

    Japan – The carbon-fibre chassis, billed as the first such affordable structure for mass production, is being shown at the Tokyo Motor Show as part of the Yamaha Sports Ride Concept. UK-based Gordon Murray says the chassis brings Formula One materials and technology “within reach of the everyday motorist”.The innovative ...

  • Higueras-2530-031.jpg
    Article

    Showing real steel

    2015-10-28T10:03:59Z

    ArcelorMittal has invested heavily to produce AHSS for the automotive industry. Chris Wright visits the company’s Sagunto plant, Spain, which is ramping up to produce 150,000 tons of Usibor per year from 2016ArcelorMittal has collaborated with OEMs to develop steel solutions that meet critical requirements in terms of weight reduction ...

  • Dreistern
    Article

    Ready to roll

    2015-10-23T11:56:31Z

    Rollforming innovations are supporting the crucial development targets of cost saving and weight reduction, writes Heinrich Weber, director of sales and marketing at Dreistern UHSS bumper with variable radiusRollforming has demonstrated its capability to process ultra-high strength steels (UHSS) with a tensile strength up to 1,600MPa. Such steels already contribute ...

  • Article

    Fibra adicionada

    2015-10-20T13:16:58Z

    OEMs estão usando agora compósitos em aplicações mais amplas e maiores volumes para auxiliar a leveza do veículo.No início deste ano, a BMW anunciou que faria uso extensivo de plástico reforçado com fibra de carbono (CFRP) no chassi da próxima geração de seu sedan de luxo Serie 7. Os novos ...

  • Article

    Más fibra

    2015-10-20T11:05:33Z

    Los fabricantes de automóviles utilizan los materiales compuestos cada vez en más aplicaciones y en mayor volumen para reducir el peso de los automóvilesA principios de este año BMW anunció que realizaría un uso extensivo de los plásticos reforzados con fibra de carbono (CFRP, carbon-fibre reinforced plastic) en el chasis ...

  • 7-Series
    Article

    掺加纤维

    2015-10-16T15:25:11Z

    在原始设备制造商的努力下,复合材料的使用变得更加广泛,数量更多,从而减轻汽车重量今年早些时候,宝马公司宣布,要在新一代7系列豪华轿车的底盘上,广泛利用碳纤维增强塑料(CFRP)。新车型的重量达到130公斤,比原来的车型更轻,同时在乘客舒适度和安全设备上还有提高。除了能够降低能源消耗和二氧化碳排放,还能降低汽车的惯性重心,并提高操作性能。据SGL集团(宝马CFRP项目主要合作商)首席执行官Jürgen Köhler称,“在BMW7系列上使用碳纤维产品,是碳材料在汽车业里大范围系列应用的里程碑。”混合材料方案车辆是在混合材料“碳芯”汽车结构的基础上制造的。在乘用车单位上,比如中立柱的结构因素上使用CFRP,会提高乘用车的总强度和抗扭弯。因此,乘用车钢板因素的配置是可以调整的,可以明显降低车身重量。CFRP还应用在车辆混合顶棚构架上。碳纤维的应用将由SGL Automotive Carbon Fiber公司开发(SGL-ACF)— 是BMW和SGL集团的合资公司 — 地点是在华盛顿州Moses Lake工厂。工厂在过去几年内的生产力稳步提高。初加工品是这些纤维利用全自动纺织生产工艺制造而成。然后,初加工品将直接送到宝马集团,并及工程CFRP零部件。CFRP is used in the hybrid roof frame of the new BMW 7 SeriesSGL集团在德国Wackersdorf工厂也提供碳纤维面料,以及回收材料。集团与BMW集团一同开发,将这些回收碳纤维产品用于C-柱和保护罩分割物上。宝马公司称,制造i3和i8车型上使用的CFRP密集材料过程的经验 — 以及相关基础设施 — 是结果如此成功的关键。新款BMW7系列使用了大量的额碳纤维,成为汽车业使用第二多的系列CFRP生产项目,仅次于i系列车型。设计,生产和装配CFRP材料的硬度和轻度,使其成为生产汽车结构组件的理想材料。但是广泛使用需要在零部件的设计,生产和装配上进行全新的改变 — 这对汽车制造商来说是个极大的投资。2010年宣布出售Lamborghini的Sesto Elemento,这是扩大使用CFRP最激动人心的案例。Sesto Elemento的562bhp V10是在Gallardo的基础上,用CFRP结构制造。999公斤的汽车能达到100公里/小时,在2.5秒中内就能达到300公里/小时的速度。为了把这种性能发挥的更高程度,Sesto Elemento的生产使Lamborghini的工程师们有机会测试各种技术,应用于今后CFRP零部件的制造商。公司在CFRP技术应用于汽车上历史很长。2001年到2010年,在Murciélago的生产中大约使用了31%的碳纤维增强环氧预浸料。这些材料继而应用于所有外部车体板材,以及内部结构零部件上,最后接合到钢材空间构架上。成本与数量在制造这个汽车的过程中,Lamborghini公司强调,为这些结构铺上CFRP板层,以及常常的高压热加工所产生的高成本。但是公司认为这个工艺适合Murciélago,每年的生产率大概会达到400辆。The Alpha Romeo 4C weighs 895kg and features extensive aluminium and low-density sheet-moulding compoundMurciélago的后续产品Aventador于2011年3月在Geneva车展中亮相,全复合材料构架设计上含有50%的碳纤维。这个设计极大提高了扭转刚度,比Murciélago在碰撞方面显示出更佳的性能。Aventador的CFRP组件每年的产量大约是800个,大部分是利用液体树脂工艺制造,比如真空辅助树脂传递模塑(VaRTM),以及树脂传递模塑(RTM)上。Lamborghini公司认为这些技术在这些数量上是搞笑的,但对更高数量的生产来说,需要开发新的技术。锻造复合材料Lamborghini采用的革新技术当时还有所谓了锻造复合材料,在汽车结构和悬挂摆臂上使用。这是与高尔夫俱乐部制造商Callaway一同合作开发,不连续的纤维增强材料适用于高产量CFRP零部件的生产。锻造复合材料是在碳纤维增强模压塑料板材(CFSMC)的基础上而成,有Quantum Composites公司提供。该材料是由25.4mm长的碳纤维短麻屑(占材料重量的53%)构成,随意分布在两层乙烯基酯树脂中间的衬垫上。这些材料经过滚筒压缩称板材形状,再卷起来,成为标准预浸材料。这个材料用于配对金属工具热压工艺中的压塑法。它能承受大约132-160摄氏度,6.9-10.3MPa的压力,加工时间在3至5分钟。Lamborghini公司称,这种材料能大幅度降低生产循环时间,以及复杂的三维零部件的需要(这在持续的碳叠层组合材料中不典型)。公司利用锻造复合材料,降低了Sesto Elemento悬架控制手臂重量,与铝材质大约轻27%。该材料出现在2010年版Lamborghini Gallardo LP570-4 Superleggera上。此外,这些零部件的生产只需要6分钟。自开发Sesto ...

  • 7-Series
    Article

    Added fibre

    2015-10-16T15:25:11Z

    OEMs are now using composites in wider applications and higher volumes to assist vehicle light weightingEarlier this year, BMW announced that it would make extensive use of carbon-fibre reinforced plastic (CFRP) in the chassis of the next generation of its 7 Series luxury sedan. The new models will be up ...

  • P90145709_highRes.jpg
    Article

    Spartanburg: SUV superstar

    2015-09-03T16:39:21Z

    As the BMW factory in South Carolina prepares to introduce its fifth and largest SUV, the X7, AMS looks at what makes this operation so important for the German brand within its worldwide production networkOne of BMW’s biggest success stories is not a car but a plant. Spartanburg in South ...

  • Article

    Forma e conteúdo

    2015-08-26T10:34:45Z

    Novos desenvolvimentos procuram entregar formação de compósitos rentável para o setor automotivo.No final do ano passado, Toray Industries do Japão anunciou que sua CFRTP (fibra de carbono reforçado termoplástica) era para ser usada em um aplicativo estrutural automotivo. Alegando que ela seria a primeira do mundo, o material CFRTP é ...

  • National Composites Centre
    Article

    成型与材料

    2015-08-21T12:47:14Z

    冲压技术不断发展,为汽车制造业推出高成本效益的复合加工材料。去年年底,日本东丽公司(Toray Industries)宣布,要在丰田Mirai燃料电池车上使用碳纤维增强热塑性塑料(CFRTP)。CFRTP是世界上首次应用于Toyota Mirai燃料电池车上的所谓的“栈框架”上。据Toyota公司称,组件设计是通过吸收来自保险杠和其他道路障碍的冲击来保护燃料电池堆的。有人说,CFRTP能够以更短的冲压时间,进行更加合理的量产制造。作为一个组件,堆栈框能够提高公路车辆负荷量的优势。然而,Toray并不是唯一奋战在这个技术领域的先锋。早在2011年,另一家日本公司,Teijin就利用CFRTP车体结构制造一个四座概念车。车身成型时间还不足1分钟,重量只有47公斤,是钢结构(通常碳纤维的强度是钢的10倍,而重量只有四分之一)重量的五分之一。 Composite content on the Toyota MiraiTeijin公司把这种CFRTP冲压成型技术成为Serrebo,是“拯救地球,碳的革命与进化”的缩略用于,目前与通用汽车公司等汽车制造商一同合作,加快Sereebo品牌的开发,用于轻质汽车的量产,成果要分享。目前的组合材料应用宝马公司采用成型符合材料的历史也很长,主要用于电动车,比如i3和i8。比如i3车上的乘用空间,被宝马公司叫做“生命模式”,就是由碳纤维材料构成。这是用回收碳纤维制成的复合顶盖盖上,而内饰和其他部分使用天然碳纤维加固而成。在i8上,碳纤维乘用空间能提供2+2座位排列,碰撞性能良好,重量比钢轻50%,比铝轻30%。蝴蝶风格的车门也是用CFRTP制造的,并用铝加固。此外,保险杠和挡泥板使用一块复合塑料制造而成。很显然,在轻质结构组件的生产上,汽车制造商正在不断走向复合材料。据化学巨头BASF公司称,到2025年,汽车车身和底座上的复合材料市场价值会达到20亿欧元。然而,热固性复合材料价格昂贵,而且以目前的工艺制造组件的速度远不及传统材质,跟不上量产速度。汽车制造商、研究中心和材料生产商都在寻找方法,解决这个瓶颈。“我们装备了世界上最大的、易进入的、高速率复合材料制造加工冲压机…目的是为汽车业等部门提供技术支持。高速、低成本的制造复合组件对这些行业来说非常重要”– Tom Hitchings, National Composites Centre专门的冲压方案在英国布里斯托尔的国家符合材料中心(NCC)就可以看到实例。不久前,这里刚刚安装了Schuler冲压机,用于高产量制造。向上的短程冲压的力量达到36,000kN,加紧面有3.6×2.4m。NCC业务开发主任Tom Hitchings说,“我们已经安装了世界上最大的,易进入的高速度复合材料加工冲压机。目的是为汽车业等部门提供技术支持。高速、低成本的制造复合组件对这些行业来说非常重要。这个冲压机能在不足5分钟的时间内就完成零部件生产。” On the BMW i8, the carbon fibre-built passenger cell offers a 2+2 seating configurationNCC采用了HP-RTM(高压树脂传递模塑)工艺,把碳纤维放置在一个充满树脂的模具里,然后用冲压机进行高温高压硬化处理。HP-RTM工艺不仅能缩短几何结构复杂零部件的循环时间,而且还能保持零部件和水平面的高质量。此外,此工艺能真正消除空隙,树脂零部件内部边缘不会出现真空气孔或缝隙。在HP-RTM工艺中,树脂必须快速平缓地注入真空模塑,因为只要有十分一毫米的缝隙就会打开。缝隙灌浆法会把树脂喷到膜板上,流动阻力更低,注射压力更低。因此,要在热感应聚合反应开始之前快速浸润膜板。根据零部件或腔体表面几何结构,冲模中心加载区不一定要在重要及的中间。还有来自注入为止中心以外的力量。重要的是,平行度控制阻止了滑动或上模在缝隙注射期间的扭动,因此保证了平滑度,整个表面都会注入。传统的下行冲程是用一个固定的车床和活动工作台,还要一个滑梯,将压力通过气缸转移。平行度是通过四个伺服控制的车床边角的背压气缸进行的。这些还需要负责冲破开启力,才能反击粘附力并打开模子。相反,NCC上行冲程的滑道只是在冲压过程起到支撑座通。从顶端到上止点,滑道是通过一个传动缸到达支撑位置,并在那里固定住。实际工作冲程是由座板完成的,由多个短击气缸驱动。平衡度是由一个伺服控制这些气缸的,而上行冲程启动力是在座板收回时产生的。上行短程冲压与下行设计(关闭速度为1,000mm/s)相比,冲压时间更短,不到0.3麦种,而且结构高度也明显要低。Hitchings说,“在处理大型热塑复合材料零部件是,快速关闭可以避免过早冷却现象”。Open Hybrid Lab Factory The Engel V-Duo 3600 is the largest in the range德国Wolfsburg的Open Hybrid Lab Factory正在开展合作研究,解决行业和技术上的课题,涵盖混合动力轻型结构组件量产的材料开发、理念与生产技术,重点投资冲压技术。比如,目前正在制造一步Engel V-Duo 3600机械,用于研发中心的工作。事实上,Engel是这个中心的奠基人兼赞助商,该中心于2012年建于Volkswagen。除此之外,新的Engel机械还要用于ProVorPlus项目,该项目重点解决纤维强化塑料金属混合预装配技术中的综合功能。为了保证在研究中能够发挥最大灵活性,机械上装配了两个注射装置。Engel V-Duo 3600的夹紧力达到36,000kn,是这个系列中最大的机械。在宝马Landshut工厂里也安装了具有相同夹紧力的机械,该厂用于制造大型结构组件,利用HP-RTM工艺制造前位增强塑料组件。为Open Hybrid ...