Marine Ship Aluminum Die Forgings
Marine engineers and naval architects recognize
aluminum as an advantageous material in ship building
and the fabrication of components in offshore platforms.
The lightweight, superior mechanical properties, and
corrosion resistance of aluminum alloys has dictated their use
in many of these applications. Using aluminum, naval architects
can design ships and boats with high-speed capability,
long life, high payloads, and low maintenance costs, as well as a high recycle value.
Aluminum in civilian and military vessels has a long history
that tracks the development of the aluminum industry itself,
beginning in the late 1890’s when some of the first all-aluminum
marine vessels were built. The introduction of 5xxx (AlMg)
alloys in the 1920’s gave a boost to widespread usage of
aluminum by marine architects and engineers. These alloys,
much improved since the 1920’s, are still used in ship and boat
building and more stationary marine applications.
Aluminum alloys used in hull construction of vessels have been primarily 5083, 5086, 5454, and 5456 sheet and plate, but now include 5059 and 5383. These alloys are often used in the annealed condition (O temper), but when higher strength is required, they are used in a work-hardened condition (H temper)such as H116 or H321.Below and above deck, 6xxx (Al-Mg-Si) alloys in the heat treated condition have been used in extruded and sheet forms along with 5xxx alloy sheet and plate. The 5xxx alloy less frequently extruded, but some 5xxx alloy extrusions are available for marine applications.
Many kinds of forgings including piston, crankshaft, rudder, cylinder head, cross shaft, gear, transmission shaft and connecting rod.
marine aluminum forgings
aluminum die forging
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