Aluminum Impact Extruding is a method of producing a variety of products by forcing metal to flow through an orifice between the punch and die under compressive stresses. And the final shape is normally formed in a single stroke of the press.
There are three basic forms of impact extruding as shown below:
A blank of aluminum slug is placed in a die cavity, and struck by the punch, forcing the metal to flow upward around the punch.
This process involves both reverse and forward impacting in one operation, it is used to produce complex shapes. It’s worth noting that a lower punch may also be incorporated with an upper punch, make the metal upward into the punch, until the cavity is filled.
Opposite to Reverse Extruding, the aluminum slug flows through the orifice of a die by the forward force of the punch. The punch fits the walls of the die so closely that no metal escapes backwards.
Aluminum extrusion process is a unique process, which has multiple advantages compared to other manufacturing processes, which as follows:
The extruded aluminum product is uniform in texture, free of pores and cracks, and does not require leak testing.
Compared to steel, aluminum extruded parts have higher strength, reduced wall thickness, and reduced weight, making them ideal processes and materials for automotive and high-stress applications.
Based on the characteristics of the aluminum material and the uniform microstructure, aluminum extruded parts have excellent cooling performance.
The production speed is greatly improved compared with the traditional method, which is ideal for mass production.
Less processing time, lower disposable mold costs and less waste mean lower overall costs.
Our products accept various surface treatment processes, including paint, polish, screen printing, Heat transfer printing etc
For some structurally suitable parts, when aluminum extrusion is used, the production speed is faster than screw machine or turret lathe, and the parts have a smoother surface, which does not require grinding and finishing. In addition, because the part is a forged structure It is easier to accept some surface treatment processes.
If the part is designed in the range of aluminum extrusion products, and you want the part to be light, strong, and have a smooth surface, then aluminum extrusion is a better choice than casting. And because of its non-porous nature, it is also very convenient for secondary processing.
Welding and brazing are used to join a number of components to form a subassembly. In contrast, aluminum extrusion processes can be made faster and at a lower cost to make these sub-assemblies. Meanwhile, the aluminum extrusion process can also completely avoid connection failures occurring during welding.
Impacted pieces are lighter than forged counterparts and are produced with minimum draft surfaces, closer dimensional tolerances and require less, if any, machining.
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