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The Construction Specifications Institute (CSI) is a United States national association of more than 6,000 construction industry professionals who are experts in building construction and the materials used therein. The institute is dedicated to improving the communication of construction information through a diversified membership base of ...
The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA; pronounced 'Smack'-'Nah') is an international trade association with more than 4,500 contributing contractor members [1] in 103 chapters [2] throughout the United States, Canada, Australia and Brazil.
DFM guidelines define a set of rules for a person designing a product to ease the manufacturing process, reduce cost and time. For example, if a hole is to be drilled , if the designer specifies a standard hole size then it reduces the cost because the drill bits of unusual sizes are not readily available they have to be custom made.
Examples of T-slotted profiles 1964 patent demonstrating early use of extruded T-slot members. Cross-section of 80/20 T-slotted profiles, 10 and 15 series A bicycle trailer for bike-trekking with three Euroboxes and aluminium profile framing
In the early 1960s when there was a housing construction boom in North America and the price of copper spiked, aluminum building wire was manufactured using utility grade AA-1350 aluminum alloy in sizes small enough to be used for lower load branch circuits in homes. [7]
A horizontal hydraulic press for hot aluminum extrusion (loose dies and scrap visible in foreground) There are many different variations of extrusion equipment. They vary by four major characteristics: [1] Movement of the extrusion with relation to the ram. If the die is held stationary and the ram moves towards it then it is called "direct ...
The development of tools which calculate upfront carbon emissions is expected to bring changes to the relative competitiveness for US-produced aluminum products, and result in states with cleaner electric grids gaining a competitive advantage both for sourcing aluminum construction materials, and for siting of new aluminum industry facilities. [21]
These machines greatly enhanced the US defense industry's capacity to forge large complex components out of light alloys, such as magnesium and aluminum. The program began in 1944 [1] and concluded in 1957 after construction of four forging presses and six extruders, at an overall cost of $279 million. Six of them are still in operation today ...
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