precision rolled plate
High-strength precision rolled plate
Alloy: EN AW 7019 [AlZn4Mg2Mn]
Type of alloy: heat treatable
Surface:two surfaces precision milled, roughness Ra 0.4 µm, foiled on both sides
- good weldability
- high strength
- narrow tolerances of thickness and flatness
- very good machinability
- good anodising capability
- two sides precision machined surface
Precision rolled plate UNIDAL® made form alloy EN AW 7019 (AlZn4Mg2), finely milled on both sides and covered with protective film, is characterised by a narrow tolerance of flatness and thickness and has only relatively low residual stresses. The good anodising and welding capability opens up a wide range of applications for this product.
Base and support plates can also be made of UNIDAL® when they have difficult contours.
Device construction and mechanical engineering
Due to the good weldability yet high strength of UNIDAL®, a variety of welded structures are made from this material.
UNIDAL® is mainly used for printing plates in this sector. The good anodising qualities also enable very smooth functional surfaces.
Higher-loaded transfer and coordinate plates are often made from UNIDAL®, particularly if anodisation must satisfy aesthetic requirements and medium-strength cast plates are not sufficient.
If components show a very high degree of machining and they must be highly accurate, there can be a problem with warping when using rolled plates. This risk can be minimised if the processed component is subjected to stress relief annealing after the roughing operation at 140 ° C for 2 hours and only then is finished.