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Journal Article

Improving AFP Cell Performance

2014-09-16
2014-01-2272
The Automated Fiber Placement (AFP) machine layup run time in large scale AFP layup cells consumes approximately 30% of the entire part build time. Consequentially, further reductions to the run time of the AFP machine part programs result in small improvements to the overall cycle time. This document discusses how Electroimpact's integrated system and cell design reduces the overall cycle time by reducing the time spent on non-machine processes.
Technical Paper

Medium Wave Infrared Heater for High-Speed Fiber Placement

2007-09-17
2007-01-3842
Electroimpact, in cooperation with a large airframe manufacturer, has developed Automated Fiber Placement equipment capable of depositing material at speeds in excess of 2000 inches per minute. As the machine lays down each new ply of material, the area forward to machine motion is heated just in advance of pressing the tape against the substrate. A fast-reacting, high-power infrared emitter heats this area quickly and safely. The design of these heaters is the subject of this paper.
Technical Paper

High-Speed Fiber Placement on Large Complex Structures

2007-09-17
2007-01-3843
Automated Fiber Placement (AFP) equipment has been developed capable of laying fiber in excess of 2000 inches per minute on full-size, complex parts. Two such high-speed machines will be installed for production of a nose section for a large twin-aisle commercial aircraft fuselage at Spirit AeroSystems in Wichita, Kansas along with a rotator for the fuselage mandrel. The problem of cutting and adding on the fly at these speeds requires thorough re-evaluation of all aspects of the technology, including the mechanical, controls, servos systems, and programming systems. Factors to be considered for high speed cut and add on the fly are discussed.
Technical Paper

Evaluation of the EMR for Swaging Collars on Advanced Composite Laminates

2005-10-03
2005-01-3299
The Boeing 787 Dreamliner will be the most fuel-efficient airliner in the world when it enters service in 2008. To help achieve this, Boeing will utilize state-of-the-art carbon fiber for primary structures. Advanced manufacturing techniques and processes will be used in the assembly of large composite structures. Electroimpact has proposed a system utilizing the low recoil Low Voltage Electromagnetic Riveter (LVER) to drill and install bolts. A test program was initiated between Boeing Materials Process and Engineering (MP&E) and Electroimpact to validate the LVER process for swaging titanium collars on titanium pins in composite material. This paper details the results of these tests.
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