Aluminum precision rolled plate are made of hot-rolled Aluminum plates with its correspondingly high strength values. A specific machining process with a focus on the higher residual stresses of rolled plates, we are able to produce precision plates with a rolled surface which combines high strength values and a good lack of stress.
 


Aluminum rolled plates have a couple of difficult properties such as residual stress, a poor parallelism and flatness, and in general directional properties inside the plate. This poor characteristics of aluminum rolled plates can cause production errors or a distortion which also leads to waste.
 
The use of aluminum rolled material also requires enormous efforts during the machining. If the component needs to have very narrow tolerances in thickness and flatness it is necessary to do the cnc-machining of aluminum rolled plates with caution by multiple turning around the workpiece and with enough resting phases. This makes the machining very time- and cost-expensive. Due to the high residual stress-level of aluminum rolled plates it often happens that the finished components does not meet the requirements which again causes an expensive rework. The loss of strength (up to 40%, depends on the thickness) from the plate centre to the core, which is another bad characteristic of aluminum rolled material, additionally leads to a non-uniform loads which increases the tool wear.
 
Due to all that reasons we highly recommend the use of chalco Aluminum precision rolled plate .