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(Q&A) The evolution of automotive metals and materials


(Q&A) The evolution of automotive metals and materials
Mining company Rio Tinto started building the world s largest scandium oxide plant in Canada in January, renewing the global focus on scandium s potential applications in lightweight aluminium alloys.
Argus spoke with David Weiss, vice-president of research and development at US-based Eck Industries, a producer of premium aluminium castings, about why and how structural materials are evolving.
Edited highlights follow:
A passenger car has tens of thousands of parts and a commercial plane has millions. The materials used are constantly evolving, what is the most important factor for change?
Fuel efficiency for the past 20, 30, 40 years it has been the same overriding factor for automotive and aerospace. In the 1960s and 1970s cars were produced with a lot of iron. They worked fine but they were heavy and when fuel prices rose they had to change. Weight is even more important in aerospace and they were th ....

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