材料

Beamit开发用于轻巧汽车和航空航天零件的TI6242的3D打印过程

Italian additive manufacturing service bureauBeamit已经为钛合金TI6242开发了一种新的3D打印过程,该过程能够生产出比传统制造的同类产品更好的航空航天和赛车组件。

Beamit的激光粉床融合(LPBF)3D打印工艺可以生产具有其他材料提供的拉伸强度和耐温度的组件,但是它们较轻。据该公司称,其新开发的过程还通过预防废物和粉末回收来产生可持续性的增长。

Beamit Group总经理Andrea Scanavini表示:“我们的努力工作基本上是为了将自己定位在一个可以创新并在技术上和3D打印应用程序上更改游戏规则的水平。”“我们非常专注于客户的需求和生产力,并利用我们的材料和过程工程部门对下一代生产过程的交钥匙解决方案做出回应。”

Component in the ZARE quality control department. Photo via BEAMIT.
Component in the ZARE quality control department. Photo via BEAMIT.

3D打印TI6242

Beamitbegan developing its additive manufacturing process for Ti6242 in 2019, after conducting an in-depth study that explored alloys suitable for processing by LPBF. The company landed on Ti6242 for its ability to resist high temperatures and produce lightweight components without compromising their tensile strength. This makes the alloy ideal for applications within the motorsport and aerospace sectors where lightweight and high performance components are crucial.

The BEAMIT team embarked upon optimizing Ti6242l’s mechanical properties at temperature through the LPBF process, achieving a tensile strength of up to 1,000 MPa and a density of 4.5 g/cm3.

Beamit Group材料和特别过程经理Alessandro Rizzi说:“ TI6242流程的开发始于2019年,是与Politecnico de Milano University合作的论文项目的一部分。”“材料完全适应了LPBF,但我们真正的重点是热处理。我们设计了不同的真空周期,以在室温和高温下优化其机械性能,并开发出综合的高压热处理过程。”

结果,TI6242合金表现出高度重量的高度为600 MPa,最高为550°C,这使其成为需要良好的机械强度和轻巧重量的应用,并且是钢和镍超合金的可行替代品。Beamit团队进行了测试,以将3D打印Ti6242的机械性能与TI6242和另一种由常规手段(例如锻造)产生的高性能钛合金IMI834进行了比较。

据报道,3D印刷组件的性能比传统技术锻造的组件要好,并且根据Beamit的说法,该过程巩固了添加剂制造在汽车和航空航天等行业的最前沿的作用。雷电竞充值该公司还称这项技术代表了可持续性的“革命”,可以通过仅使用必要的材料和回收剩余的粉末来减少废物,以进行未来的项目。

“研究和开发新材料在Beamit集团中始终至关重要,我们很自豪成为目前唯一能够提供市场顶级技术解决方案的公司,尤其是在赛车,汽车和航空航天等领域。”Giuseppe Pisciuneri, BEAMIT’s Chief Commercial Officer. “Being pioneers of this innovation and using our materials in our client’s new projects motivates us to keep growing and spurs us on to bigger and better things.”

Ti6242的微观结构。通过Beamit图像。
Ti6242的微观结构。通过Beamit图像。

钛合金开发

Demand is increasing within the automotive and aerospace sectors for high-temperature titanium alloys due to their desirable strength-to-weight properties, however engineering weight rations, complex structures, operation temperature, and speed of development of titanium parts are challenging conventional manufacturing processes. As a result, 3D printing is rapidly becoming an interesting option for manufacturers in these sectors.

Regarding automotive, luxury car manufacturer布加迪has incorporated 3D printed titanium parts within some of its vehicles, including anexhaust tailpipe for its Chiron Pur Sport为了增加体重节省并提高零件的温度抗性,并钛安装支架对于钢铁高车的前翼。

Meanwhile, automotive tuning specialist1016 Industries混合了钛和碳纤维3D打印to integrate 3D printed performance parts into a one-off ultra-lightweight edition of迈凯轮720年代跑车。由于该技术,特别版的车辆比原始型号要比原始型号轻9%。

There have also been significant developments in 3D printed titanium material development within the aerospace sector. For instance, SLM and SLS 3D printer manufacturerFarsoon Technologies宣布开发新的高温钛材料, TA32, from its customer, Aerospace Hiwing Titanium Industrial Co. (AHTi) designed for use with itsFS271M3D printing system. Parts printed with the alloy can tolerate operating temperatures up to 550 degrees celsius and exhibit excellent tensile strength, flexibility, and plasticity mechanical properties under high temperatures.

在其他地方,美国航空制造商Spirit AeroSystems以前已经安装了3D打印钛结构组件在波音787的前锋机身中,美国空军的Hill Air Force Base successfully incorporated a3D printed titanium bracket进入由航空航天和国防承包商制造的F-22战斗机Lockheed Martin.

Andrea Scanavini总经理Beamit Group。通过Beamit照片。
Andrea Scanavini总经理Beamit Group。通过Beamit照片。

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特色图片显示component in the ZARE quality control department. Photo via BEAMIT.