+49 (0) 4191 5070 0 info@gleich.de

G.AL® 7075GF

finally milled on both sides –
for extremely precision

High-strength precision rolled plate

Alloy: EN AW 7075 [AlZn5,5MgCu – 3.4365]

Type of alloy: heat treatable

Temper: T651

Surface: two surfaces precision milled, roughness Ra 0.4 µm, foiled on both sides

  • very high strength
  • narrow tolerances of thickness and flatness
  • very good machinability
  • very good hardness
  • two sides precision machined surface

In certain applications, the use of higher-strength cast plates is not sufficient; high-strength rolled plates must be used. However, the problem with rolled plates is the wide toleration of thickness and flatness, which results in extremely complex processing. Precision rolled plate G.AL® 7075GF from alloy EN AW 7075 (AlZn5.5MgCu), finely milled on both sides and covered with protective foil, provides users with a semi-finished product which drastically reduces the time required for machining.

Applications

Toolmaking

In, for example, cutting and stamping technology, G.AL® 7075GF is widely used for anvil caps and punch retainers.

Device construction and mechanical engineering

Heavily-loaded transfer and coordinate plates can be made in very short amounts of time with G.AL® 7075GF.

Packaging and printing industry

Base and support plates that are exposed to high stress due to structural or functional reasons are one of the many fields of application of G.AL® 7075GF.

Automation technology

In automation, for example rotary indexing tables, can often be economically produced from this semi-finished product due to the uniform flatness of G.AL® 7075GF.

Expert tip

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 minimized 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.

Wolf Nawratil

Technical Product Manager, GLEICH Aluminium

Any further questions?