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Cold drawn cross-sections are more precise and have a better surface finish than hot extruded parts. Inexpensive materials can be used instead of expensive alloys for strength requirements, due to work hardening. [5] Bars or rods that are drawn cannot be coiled; therefore, straight-pull draw benches are used.
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 ...
An example of product produced in a continuous wire drawing machine is telephone wire. It is drawn 20 to 30 times from hot rolled rod stock. [2] While round cross-sections dominate most drawing processes, non-circular cross-sections are drawn. They are usually drawn when the cross-section is small and quantities are too low to justify rolling ...
Aluminium is ductile, with a percent elongation of 50–70%, [33] and malleable allowing it to be easily drawn and extruded. [34] It is also easily machined and cast. [34] Aluminium is an excellent thermal and electrical conductor, having around 60% the conductivity of copper, both thermal and electrical, while having only 30% of copper's ...
ASTM B210: Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes; ASTM B211: Standard Specification for Aluminum and Aluminum-Alloy Bar, Rod, and Wire; ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
ASTM B 221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes; EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products; EN 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties
It can be formed by rolling, extrusion, and forging. As a wrought alloy, it is not used in casting. [1] 3102 aluminium can be alternately referred to by the UNS designation A93102. The alloy and its various tempers are covered by the following ASTM standards: [2] ASTM B 210: Standard Specification for Aluminium and Aluminium-Alloy Drawn ...
Most aluminum cans are made of two pieces. The bottom and body are "drawn" or "drawn and ironed" from a flat plate or shallow cup. After filling, the can "end" is sealed onto the top of the can. This is supplemented by a sealing compound to ensure that the top is air tight. The advantages of aluminum over steel cans include; light weight