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Technical Paper

Automated Removal of Prepreg Backing Paper - A Sticky Problem

2013-09-17
2013-01-2289
Automated solutions for manufacturing composite products based on prepreg often imply Automatic Fiber Placement or Automatic Tape Laying. These systems are generally associated with huge investments. For certain manufacturing applications it is interesting to investigate alternatives to find simpler and less costly automation. One example of an automated system could be the use of a standard industrial robot to pick single prepreg plies from an automated cutting machine and stack them to form a plane laminate. This paper is based on a case illustrating a product from the aircraft manufacturing industry. The case will demonstrate a pick and place concept on a general level and illustrate challenges that must be solved. The challenge selected to be the main focus for this paper is an automated process for backing paper removal. A literature review of different gripping technologies reveals several interesting technologies, and the most promising are tested for backing paper removal.
Journal Article

Low-cost Automation for Prepreg Handling - Two Cases from the Aerospace Industry

2015-09-15
2015-01-2606
With an increased use of composite materials within the aerospace industry follows a need for rational and cost-effective methods for composite manufacturing. Manual operations are still common for low to medium manufacturing volumes and complex products. Manual operations can for example be found in material handling, when picking prepreg plies from a cutter table and stacking them to form a plane laminate in preparation for a subsequent forming operation. Stacking operations of this kind often involves a great number of different ply geometries and removal of backing paper and other protecting materials like plastic. In this paper two different demonstrator cells for automated picking of prepreg plies and stacking of plane laminates are presented. One demonstrator is utilizing a standard industrial robot and an advanced end-effector to handle the ply variants. The other demonstrator is using a dual arm robot which allow for simpler end-effector design.
Article

GKN Aerospace, COMAC, and AVIC to manufacture advanced aerostructures

2018-11-19
GKN Aerospace, COMAC subsidiary Shanghai Aircraft Manufacturing Company (SAMC), and Aviation Industry Corporation of China (AVIC International) are establishing a joint venture based in China to manufacture advanced aerostructures for the civil aerospace market, with production scheduled to begin in late 2021 in a new state-of-the-art facility in a location yet to be determined.
Magazine

Aerospace Engineering 2011-07-27

2011-07-27
Material matters While new airplane designs now entering service will use more carbon-fiber composites than ever, it is no time to count out aluminum, as promising new versions of alloys such as aluminum-lithium gain ground.
Magazine

Aerospace Engineering 2011-02-09

2011-02-09
Composite simulation helps fill gaps There is no turning back from using carbon-fiber reinforced plastics and other composite materials for aerospace parts. Simulation providers are finding new opportunities to help reduce cost and improve efficiencies in designing and making aerospace parts made of composites. Shifting gears smoothly Ric Kleine, a 30-year veteran of Cummins Inc. and former SAE Commercial Vehicle VP, seeks continuity over change as he moves into SAE's driver's seat.
Magazine

Aerospace Engineering & Manufacturing 2008-06-01

2008-06-01
From concept in mind to product in hand Compatibility between tools for design and manufacturing engineers is improving, though it's still fraught with potential pitfalls. Cockpits on display Larger (and eventually bendable) flight displays use commercial technology for both new production and retrofit applications. Interior interests Makers of business aircraft take different approaches to designing interiors. Aerospace proves its metal Aluminum lithium, magnesium alloys, titanium metal matrix composites, and advanced coatings are all part of the future of flying.
Magazine

Aerospace Engineering & Manufacturing 2008-04-01

2008-04-01
Carbon fiber gets bigger footprint Manufacturers strive for the Holy Grail of composites manufacturing: consistency and repeatability. Safety on the floor Once add-ons that brought almost as many problems as benefits, safety techniques are now being designed into equipment before start-up. Taking measures of the machine New requirements and technologies advance the art of test and sensing. Looking, listening, recording, analyzing HUMS is established as an integral part of aviation's safety network, but more standardization is needed to broaden its effectiveness.
Magazine

Aerospace Engineering 2004-10-01

2004-10-01
Military maneuvers Electronics and avionics designers put control in the pilot's hand. Propelling commercial aircraft GE Aircraft Engines calls upon its engineers, and those of its "competitors," to develop a series of next-generation engines. Bonded repairs Aircraft structure repair is process-sensitive, requiring attention to detail, particularly in terms of both composite and metal surface preparation.
Magazine

Aerospace Engineering 2001-07-01

2001-07-01
Giving ice the boot Atmospheric icing was for many years one of the majoy threats to aircraft safety- and it potentially still is. Researchers at Dunlop Aviation Ice Protection and Composites continue their development of deicing and anti-icing technologies. The art of wing assembly Airbus Industries investigates new technologies and techniques for improving quality and reducing cost of its wing box assemblies. Affordable engines for small aircraft A look into the new technologies developed for small-aircraft engines as extensions to the cooperative agreements under the NASA General Aviation Propulsion program conclude.
Magazine

Aerospace Engineering & Manufacturing 2008-01-01

2008-02-01
Casting a vote for alloys Bringing lighter weight, improved performance, and enhanced repairability to airframes and engines. A sense of the future for UAVs Providing the unblinking eye for intelligence, surveillance, and reconnaissance. Light material brings heavy challenges Shift from aluminum to composites requires major changes in equipment, software. Ryan's 'Research' put to good use The Southwest Research Institue engineer assumes SAE President duties for 2008.
Magazine

Tech Briefs: August 2018

2018-08-01
Designing a High-Speed Decoy Unmanned Aerial Vehicle (UAV) Using Thermoplastics in Aerospace Applications In-Flight Real-Time Avionics Adaptation Using Turbine Flow Meters for Aerospace Test and Measurement Applications Communicating from Space: The Front End of Multiscale Modeling Laser-Based System Could Expand Space-to-Ground Communication Hydraulic Testing of Polymer Matrix Composite 102mm Tube Section Research could lead to development of a composite material that can be processed at a low temperature and still be used at 1000°F. Permeation Tests on Polypropylene Fiber Materials Study attempts to determine if polypropylene nanofiber materials can be used in air filtration systems to remove toxic vapors. Inter-Laboratory Combat Helmet Blunt Impact Test Method Comparison Ensuring consistent test methods could reduce the risk of head injuries.
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