Die casting, specifically high pressure die casting, is a precision casting method that employs high pressure to force molten metal into a die. Such a process is frequently used to create parts with complex shapes.
Aluminum extrusion is a process whereby a blank aluminum bar is placed into a mold cavity of the desired shape/structure and forced through (i.e., extruded) with a certain pressure and speed to obtain a section of the specified shape, size, and mechanical properties. This section is then cut to obtain a workable part, which can then be further machined or surface treated as needed.
Forging is a metalworking process in which metal is heated until it is pliable and then formed into various shapes using dies, hammers, presses, or other tools. The primary advantages of forging is that it can produce stronger parts with greater impact resistance. The process also allows for better grain flow throughout the part since it is worked from the inside out; this helps reduce defects and improves product quality overall.
As sheet metal stamping process, any single part can require multiple steps to arrive at its final form, including blanking, forming, drawing, piercing. With a series of operations, the metal can be altered from a relatively simple shape into a complex one.
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