As a result of its unique properties, aluminum
has been of key importance in many of the developments of the past century. Why
only a century or so? Because although aluminum is the most abundant metallic
element in the earth’s crust (8%), metallic aluminum was produced for the first
time just 200 years ago.
Are you up to speed with nanotechnology? Nanotechnology,
which is literally the understanding and control of materials on an atomic or
molecular scale, has the potential for major improvements in a variety of
applications. For this reason, the U.S. government has invested more than $10
billion dollars in nanotechnology over the past decade.
heat treatment, many of the products we use daily, and take for granted, would
need to be designed differently or would not function as effectively. One of
these is the automotive seat-belt clasp.
Did you know that Paul Revere was an early metallurgist? At 19, Revere took over the family silver shop. A perfectionist throughout his life, he went on to become one of America’s greatest artists in silver.
There are a number of ways
to join two metals together. Most of these involve some form of welding or
brazing with many variations in these techniques. One of the welding categories
is solid-state welding, and one of the eight solid-state welding techniques –
explosion welding (EXW) – meets a unique metal-joining need.
A local tunneling project to extend a subway line created
interest in the large Tunnel Boring Machine (TBM) being used. Just how does
this 23-foot-diameter machine with a length of 200 feet and a weight of 1.2
million pounds cut 35 feet of tunnel every day? And how does thermal processing
play a role?
The aging of the largest segment of our population (the boomers) will surely increase the number of joint failures. When joints fail, the solution is often to replace the problem area with an artificial joint. Before that can happen, however, a number of thermal processes must take place because most of these replacement joints are made from a cast metallic alloy.
Who has a more personal connection to high-temperature metals processing than the blacksmith? Do you think blacksmiths no longer exist? Think again. This field is experiencing a bit of a resurgence as people look for a craft with an artistic component that can provide a usable product for those who are looking for something out of the ordinary.