The lightweighting of aerospace aircraft is mainly achieved through the use of fiber-reinforced plastics, aluminum and titanium, on the other hand, the machining of this material presents new challenges for the machine tool industry. "In order to continuously improve the complex components in the aerospace field and Production processes and technical modules across the entire value chain need to work together and complement each other '' This is underscored by Buber, head of the Processing Innovation Network office, who joins the EMO 2017 in Hannover as a joint pavilion .
According to data from the German Association of Machine Tools, 4.1% of the machine tools are purchased by buyers from the aerospace sector. If you look at the overall German machine tool production (2015: approximately 11.2 billion Euros - complete machine, non-part) The industry has a share of 460 million euros, a clear upward trend in the last few years, with a market share of just 3.6% in 2013 and only 2.5% in 2011. The reason is that the increase Material manufacturing process in the field of aerospace increasingly important position.
German Machine Tool Association in the interview given the above interpretation.
Grove, director of production processes at the Hanover Production Engineering and Machine Tool Research Institute in Germany, believes the number of aircraft will continue to grow in the coming years, and the scientist believes that aerospace will also become a driver of innovation at the same time. , More intensive, stronger components to ensure their efficient production in an automated production chain. "To date, long haulage aircraft like the A350, which make up 50% of the overall mass of fiber-reinforced plastic, Impact on metal components because the combination of conventional aviation material aluminum and fiber reinforced plastic can lead to contact corrosion.Grove said: 'We have to use corrosion resistant materials such as titanium alloy, but this material is very much Impatient cutting, where additive manufacturing is a targeted manufacturing technique.
In fact, the technology is still toddler in the aerospace field, where the first 3D-printed part used for flight controllers just a few weeks ago flew with an Airbus fleet, Produced by Boehner Aerospace and Transportation, it is a hydraulic assembly for flight control.The valve block made of titanium powder, as part of a spoiler actuator, can be used on vehicles such as the Airbus A380.According to the manufacturer The Titanium-based valve block has the same performance as a conventional titanium forging valve block, but weighs 35% less because it consists of fewer single components.
Luvus, managing director and chief technology officer of the Liebherr aerospace and transportation company's flight control and drive systems, landing gear systems and hydraulics, concluded: 'Before we could fully apply the 3D printing process to the aerospace industry, Some work needs to be done to optimize the stability, maturity, and economics of the technology by optimizing the laser parameters of the powdered material and post-processing all aspects of the process chain, up to the finished product. "However, 3D The potential and vision of print technology will have a profound impact on the future generations of aircraft research and development.EOS GmbH of Hannover is demonstrating the role of additive manufacturing in the aerospace field and is presenting a demonstration for Ariane-6- The higher level drives the rocket drive Vinci's die head, which usually consists of 248 components and is manufactured and assembled in different production steps. For injection molded parts, more than 8,000 cross holes are drilled in the copper sleeve and 122 The injection components are precisely screwed together to mix the hydrogen and oxygen flowing in the component.The manufacturer will use 3D printing technology for such castings For efficient production A Additive Manufacturing itself brings together the functions of integration, lightweight, simplified design and shortened production time of individual components etc. The production was initially carried out on the EOS M 290 and is progressively completed, EOS M 400-4 system with laser technology, with four times the speed of manufacturing engine parts.
With this higher productivity than single laser systems, the AiO injection head has been manufactured with a 3X reduction in manufacturing time and a 50% reduction in cost. Due to simplified design, material properties are improved and the wall thickness is significantly greater than the quality of the castings Reduced - At the same time ruggedness of the same weight reduction of 25% means that the installation time is reduced, while reducing costs.