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  • proimages/equipment/01-02Indirect-extrusion-machine.jpg

Indirect extrusion machine with internal piercer

Indirect extrusion machine with internal piercer

In AMSpec, there are 3 indirect extrusion machines, 2 sets are 1500 tons, and another is 2,000 tons which are designed by us. The container size is suit for extruding the diameter of 6” and 9” billet for aluminum or magnesium alloys. The seamless high strength aluminum tube with well precision is produced by the indirect extrusion press with internal piercer and the outer diameter of tube or profile we can produced now is below 90mm. It can neglect the friction between the billet and container wall, then the extrusion temperature keeps at the steady state during the process of extrusion and get the results of great microstructure of alloy, also the uniform grain size and the well mechanical properties. It also can adjust the axial alignment to keep the accuracy of wall thickness for extruding the seamless tube. This extruded product has a stable grain size and uniform microstructure on the surface that leads to the excellent surface quality after anodizing or other surface treatment. The high strength aluminum alloy tubes are often used in bicycle frame, suspension fork tube, handlebar, seat post, safety components with high reliability and sports equipment for the competition game, such as the baseball bat, lacrosse shaft and so on.

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