高级复合材料公司六角已经推出了一种新的电导性聚合物基于3D打印的碳纤维复合材料。
该公司的新型热塑性Hexpekk EM已被定制，以满足高级飞机应用的静态电力管理，电磁（EM）屏蔽和辐射吸收需求。通过将EM质量直接集成到3D打印的零件中，Hexcel的材料可以使用户能够从一开始就可以削减昂贵的后处理步骤，并从一开始就交付“准备飞行的”组件。
“The introduction of this advanced additive manufacturing material will enable the fabrication of extremely complex aerostructures with unparalleled structural and electrical functionality,” said Lawrence Varholak, Vice President of Additive Manufacturing at Hexcel. “It significantly reduces weight and cost while providing unlimited design flexibility.”
Hexcel不断增长的3D印刷材料组合
Having been founded in 1948, Hexcel is an established producer of materials, not just for the 3D printing industry, but the wider industrial manufacturing sector as well. In addition to its product portfolio, the company has vested interests in a variety of sectors, including the flight, energy generation and transportation industries.
Hexcel目前的产品阵容包括一系列碳纤维，面料，粘合剂和工具材料，但是3D打印中的碳纤维很可能会识别其proprietary line of HexPEKK thermoplastics。聚合物系列已通过制造航空航天零件进行了优化，甚至满足了内部飞机烟雾和毒性要求（UL VO，OHS），以最终使用。
Hexcel的增添航空航天重点可以追溯到2016年，当时它在英国达克斯福德开设了一个新的研究中心，目的是为航空和工业市场开发新的复合材料。一年后，该公司进一步迈出了一步，获得的牛津表演材料（OPM），是高性能热塑性和碳纤维增强3D印刷零件的已知生产商。
After the acquisition, Scott DeFelice, CEO of OPM, said that its focus “remained on the applications of PEKK” and that the firm had “some令人兴奋的开发新材料。”随后，Hexcel重申了其致力于开发新的Pekk航空材料的承诺，获得3D打印零件批准来自跨国公司波音。
The accreditation was awarded directly to Hexcel’s HexPEKK polymers, and this allowed them to be used within the fabrication of brackets, environmental control system ducts, and castings. Following the launch of the latest edition of HexPEKK, the company is now aiming to address an even broader set of applications within the aviation sector.
Hexpekk Em的崇高航空航天资格
目前，启用非EM的印刷材料需要使用导电涂层，以便它们具有在航空航天行业中使用的所需素质。电导率在航空应用中至关重要，因为它可以有效地管理电磁干扰并吸收辐射。
Hexcel的新Pekk材料集成了EM特性，可以预示对如此昂贵且耗时的后处理任务的需求，这可能使其非常适合打印一系列航空航天零件。该聚合物是使用该公司的行业合格的HEXAM工艺开发的，这意味着它已经在可持续性，工作温度和耐化学性方面表现出了高水平的性能。
“在所有空气车的设计中，静电耗散，电磁干扰和辐射吸收的管理非常重要。”
The company’s self-proclaimed “industry-leading” material is targeted at producing components for end-use within commercial airplanes, military aircraft, helicopters and UAVs. According to Hexcel, this makes HexPEKK EM ideal for reducing the weight and cost of relevant parts such as air inlets, electronic enclosures, and cockpit structures.
What’s more, the inherent design flexibility of 3D printing could encourage similar aviation objects to be re-designed in a more cost and performance-efficient way. Moving forwards, the firm has committed to continue developing its patented HexAM process, to “fundamentally improve the way the world’s aircraft components are manufactured.”
佩克在添加剂制造中的作用
聚醚酮（或Pekk的）热阻力特征使其在航空航天部门中流行，但研究人员也发现了越来越多的实验性使用其抗菌质量的方法。
3D打印机制造商EOS与波音公司合作开发自己的碳纤维增强北京材料2018年4月。该聚合物旨在满足围绕航空航天部门的挑战性紫外线阻力，阻燃性和联邦航空法规。
在其他地方，OPM的研究人员和McGill University, demonstrated the material’s anti-bacterial qualities by creating3D printed PEKK implants。OPM的移植物可实现骨软骨修复，据报道显示了新骨形成的强烈证据。
一个团队Northeastern University同时，通过开发OPM的使用PEKK材料建立3D printed anti-infection orthopedic devices。据报道，该团队经过精心调整的“纳米柱”的启发，据报道，该团队可与行业标准的PEEK植入物相提并论。
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特色图片显示波音777X起飞。去年，Hexcel的Aerospace 3D打印材料被添加到波音批准的供应商名单中。通过波音的照片。
