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Technical Paper

Manufacturing and Handling Techniques Used in the Assembly of Polished Commercial Aircraft

1989-04-01
890925
The use of polished aluminum fuselage skins has been a standard on U.S. commercial jet transport aircraft for decades. Increasingly stringent environmental regulations for paint stripping combined with fuel and maintenance savings allows consideration of flying polished non-painted aircraft. Boeing, McDonnell Douglas and Embraer currently manufacture commercial aircraft with polished alclad aluminum fuselages. Commercial airlines such as American Airlines, USAir, Eastern, Northwest and ASA fly non-painted fleets. These customers require the aircraft to be delivered with a polished appearance incorporating minimum fleet graphics. The manufacturing of polished aircraft requires unique production and handling procedures to fabricate all exterior panels with identical color match and reflectivity.
Technical Paper

New 6XXX-Series Alloys for Auto Body Sheet

1977-02-01
770307
Two new aluminum alloys, 6009 and 6010, for auto body sheet are described and technical data are presented. The 6XXX-series alloys are ideal for body sheet in several respects, providing excellent corrosion resistance, improved spot weldability, and freedom from Luder's lines, together with favorable response to aging in many paint bake cycles. The result is a combination of excellent formability in the T4 temper and, after aging, higher strength than achievable in any other aluminum alloy system having other characteristics desired in body sheet. The latter translates to excellent dent resistance, superior even to that of steel. Furthermore, scrap loop problems are eliminated; compatible alloys 6009 and 6010 may be used together to obtain optimum strength and formability without any penalties in scrap utilization. Forming, aging, finishing, and joining data for these alloys are presented.
Technical Paper

Design Considerations for Aluminum Fasteners

1980-02-01
800455
Weight considerations and the need for corrosion resistance make aluminum fasteners attractive for new automotive design. This paper reviews design considerations in using aluminum fasteners. Newly developed high-strength fastener alloys complimented by lightweight and the well known attributes of aluminum give the designer wide latitude in using aluminum for standard and special purpose fasteners.
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