13887096

Wall Art and Photo Gifts from Mary Evans Picture Library

13887096

Mary Evans Picture Library makes available wonderful images created for people to enjoy over the centuries

Media ID 32340038

© Aviation Ancestry

VISUAL DESCRIPTION
This image is an advertisement by Alcoa, highlighting the superiority of their Alclad 75S-T6 aluminum sheet through a focus on "better dimpling. " The top portion of the ad features bold red text stating "Alcoa research points the way to BETTER DIMPLING of Alclad 75S-T6 sheet, " emphasizing the technological advancement in metalworking. Below this headline are two photomicrographs comparing successful and failed dimple joints between Alclad 75S-T6 sheets. The left photomicrograph shows a clean and intact dimple joint, representing what would be considered a successful outcome due to proper material selection and processing. On the right side, there's an image of a cracked or otherwise defective joint, illustrating potential issues that can arise when using inferior materials or incorrect methods. The body text below these images explains that as aircraft builders began using high-strength aluminum alloys like Alclad 75S-T6, it became apparent that tools and techniques for dimpling (creating indentations in metal sheets for fastening purposes) needed improvement to avoid weakening structural integrity. It mentions how research at Alcoa has addressed this problem by developing new tooling techniques along with appropriate heat treatment processes which ensure better performance during dimpling operations. At the bottom of the ad is another bold statement reinforcing their brand: "ALCOA FIRST IN ALUMINUM, " followed by contact information for Aluminum Company of America's sales offices in Pittsburgh. This vintage advertisement not only promotes a specific product but also emphasizes Alcoa's commitment to innovation within the aerospace industry.

MADE IN AUSTRALIA
Safe Shipping with 30 Day Money Back Guarantee

FREE PERSONALISATION*
We are proud to offer a range of customisation features including Personalised Captions, Color Filters and Picture Zoom Tools

SECURE PAYMENTS
We happily accept a wide range of payment options so you can pay for the things you need in the way that is most convenient for you

* Options may vary by product and licensing agreement. Zoomed Pictures can be adjusted in the Cart.