Composite materials are being increasingly specified in aircraft structures and components, with Boeing’s 787 Dreamliner currently featuring composites structures for over 50% of its structure, including the fuselage. This allows dramatic savings in weight allowing corresponding improvements in fuel economy.
Infrared emitters heat composites prior to forming and can be precisely controlled. Copyright Heraeus Noblelight 2011
The Hyde Group was founded in 1968 and is a leading global company with many years of experience of project management, design, production and support aspects of aircraft tooling. The scope of its tooling capabilities ranges from automated assembly systems, including robotic integration, bespoke machine tool design and manufacture, major assembly jigs, sub-assembly and all facets of detail tool manufacture from simple rubber and fluid press tooling to sophisticated lay-up tools and super plastic form tools.
It carries out extensive research and development projects and programmes for aircraft manufacturers and one such project involves the forming of multi-ply, pre-preg composites. Multi-ply composite assemblies are rigid by nature and, consequently, they must be softened if they are to be formed into specified profiles on moulding tools before curing in autoclaves. Hyde’s project engineers investigated various heating techniques to achieve the required softening of the multi-ply assemblies. The softening process was first investigated using hot air guns but warm air ovens were rejected as a solution because of their space requirement and oil-heated mould tools were considered to be potentially contaminating in a process which demands extreme cleanliness.
Eventually, after successful tests at Heraeus’s Neston Applications Centre, it was decided to use a fast-response, medium wave infrared heating system. This is installed in a robotic cell and the multi-ply assembly is located in front of the 6 kW infrared emitter by two robots, heated to around 70ºC until it is suitably pliable and then laid on the moulding tool, where specially designed rollers ensure that it follows the tool profile.
“We had used infrared previously to assist in glueing processes,” explains project engineer, Matt Garner. “We have been very pleased with their precise controllability and compactness in this new important project.”
Process Improvement by Exact Matching
Infrared heating technology offers various possibilities to optimize industrial processes:• High heat transfer capacity
• Fast response times to reduce energy consumption
Consequently, infrared heat is always used when heat processes are to be implemented which require particular targets in terms of space, time or quality.Heraeus Noblelight GmbH with its headquarters in Hanau and with subsidiaries in the USA, Great Britain, France, China and Australia, is one of the technology- and market-leaders in the production of specialist light sources. In 2010, Heraeus Noblelight had an annual turnover of 98.9 Million € and employed 689 people worldwide. The organization develops, manufactures and markets infrared and ultraviolet emitters for applications in industrial manufacture, environmental protection, medicine and cosmetics, research, development and analytical measurement techniques
For further information:Technical:
Dr. Marie-Luise Bopp | Heraeus Noblelight GmbH
Crystal with a twist: Scientists grow spiraling new material
21.06.2019 | University of California - Berkeley
A new manufacturing process for aluminum alloys
19.06.2019 | DOE/Pacific Northwest National Laboratory
From June 25th to 27th 2019, the Fraunhofer Institute for Digital Media Technology IDMT in Ilmenau (Germany) will be presenting a new solution for acoustic quality inspection allowing contact-free, non-destructive testing of manufactured parts and components. The method which has reached Technology Readiness Level 6 already, is currently being successfully tested in practical use together with a number of industrial partners.
Reducing machine downtime, manufacturing defects, and excessive scrap
The quality of additively manufactured components depends not only on the manufacturing process, but also on the inline process control. The process control ensures a reliable coating process because it detects deviations from the target geometry immediately. At LASER World of PHOTONICS 2019, the Fraunhofer Institute for Laser Technology ILT will be demonstrating how well bi-directional sensor technology can already be used for Laser Material Deposition (LMD) in combination with commercial optics at booth A2.431.
Fraunhofer ILT has been developing optical sensor technology specifically for production measurement technology for around 10 years. In particular, its »bd-1«...
The well-known representation of chemical elements is just one example of how objects can be arranged and classified
The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to...
Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.
Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...
Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.
The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...
24.06.2019 | Event News
29.04.2019 | Event News
17.04.2019 | Event News
25.06.2019 | Power and Electrical Engineering
25.06.2019 | Studies and Analyses
25.06.2019 | Health and Medicine