Machining
Right from the start, when a profile is being designed, it is possible to create a shape that will minimize necessary post-extrusion processing. However, some type of further processing is often necessary. It is relatively inexpensive to carry out further processing of aluminium profiles. The excellent formability of the material generally creates competitive tooling costs. Considerably higher cutting speeds can be achieved in cutting aluminium than cutting steel. Further machining can be done both before and after anodising. The requirements on the product determine what process is applied.
Cutting and tumbling
Considerably higher cutting speeds can be achieved in cutting aluminium than cutting steel. Using a cross-cutting saw that is adapted for aluminium can make cutting so burr-free that is satisfies most requirements without necessitating subsequent processing of the cut. Tumbling is used mainly for burring and creates different surfaces depending on time and tumbling material.
High-speed machining
With several CNC- controlled multi-task machines, Sapa is well equipped in the area of high-speed machining. The machines have considerably better dynamics and more efficient control systems than conventional machines.
With cutting speeds from 3,500 m/min., feeding speeds can be increased. This reduces the processing time and burr formation and lengthens the life of the tool.
Bending
From simple to advanced bending, from small to large series. Methods: pull, roll, stretch and press (point) bending.
Read more about hydroforming and friction stir welding.
Updated:
2004-06-11