Abstract:
An aluminium alloy for superplastic aluminium flat products having the following composition: Si≤0.4 wt. %, Fe≤0.4 wt. %, Cu≤0.1 wt. %, 0.5 wt. %≤Mn≤1.0 wt. %, 4.7 wt. %≤Mg≤5.5 wt. %, 0.05 wt. %≤Cr≤0.25 wt. %, Zn≤0.25 wt. %, Ti≤0.20 wt. %, Na≤2 ppm, unavoidable impurities individually ≤0.05 wt. %, in total ≤0.15 wt. %, remainder aluminium. A method for producing an aluminium flat product in which an aluminium melt is provided from the above-mentioned aluminium alloy, in which the aluminium melt is cast to form an ingot, in which the ingot is hot rolled to form a hot strip, in which the hot strip is cold rolled to form a cold strip, and in which the cold strip is levelled. Further disclosed is an aluminium flat product produced by the method and a use thereof.
Abstract:
An aluminium alloy for the manufacture of semi-finished products or components of motor vehicles, a method for the manufacture of a strip made of an aluminium alloy according to the invention, a corresponding aluminium alloy strip or sheet as well as a structural component of a motor vehicle consisting of an aluminium alloy sheet which includes the following alloy components in % by weight: 0.6%≦Si≦0.9%, 0.6%≦Fe≦1.0%, Cu≦0.1%, 0.6%≦Mn≦0.9%, 0.5%≦Mg≦0.8%, Cr≦0.05%, the remainder Al and impurities, individually up to a maximum of 0.05% by weight, in total up to a maximum of 0.15% by weight.
Abstract:
The invention relates to a method for thermally treating an aluminium workpiece, comprising the steps of providing an aluminium workpiece, which is essentially in the T4 structural state, and exposing a first portion of the workpiece to a first precipitation hardening process by artificial ageing to change the structural state of the first portion of the workpiece, wherein a part of the workpiece is actively cooled during the first precipitation hardening process, so that a second portion of the workpiece essentially remains in the same structural state during the first precipitation hardening process. The invention further relates to an apparatus for thermally treating an aluminium workpiece and to an aluminium workpiece, especially producible with a method according to the invention.
Abstract:
A coating of a metal sheet or strip comprising a lubricant and a protective base material is provided. The lubricant is contained in the protective base material, and the protective base material is at least in part selectively removable. There is also provided a metal sheet or strip capable of forming, in particular of superplastic forming, and having a coating according to the invention at least partially on one or on both sides of the metal sheet and a method for manufacturing a metal sheet or strip according to the invention comprising the steps of providing a metal sheet or strip capable of forming, in particular of superplastic forming, and applying a coating according to the invention.
Abstract:
An aluminum alloy for the manufacture of semi-finished products or components of motor vehicles, a method for the manufacture of a strip made of an aluminum alloy according to the invention, a corresponding aluminum alloy strip or sheet as well as a structural component of a motor vehicle consisting of an aluminum alloy sheet which includes the following alloy components in % by weight: 0.6%≤Si≤0.9%, 0.6%≤Fe≤1.0%, Cu≤0.1%, 0.6%≤Mn≤0.9%, 0.5%≤Mg≤0.8%, Cr≤0.05%, the remainder Al and impurities, individually up to a maximum of 0.05% by weight, in total up to a maximum of 0.15% by weight.
Abstract:
A coating of a metal sheet or strip comprising a lubricant and a protective base material is provided. The lubricant is contained in the protective base material, and the protective base material is at least in part selectively removable. There is also provided a metal sheet or strip capable of forming, in particular of superplastic forming, and having a coating according to the invention at least partially on one or on both sides of the metal sheet and a method for manufacturing a metal sheet or strip according to the invention comprising the steps of providing a metal sheet or strip capable of forming, in particular of superplastic forming, and applying a coating according to the invention.
Abstract:
The invention relates to a method for thermally treating an aluminium workpiece, comprising the steps of providing an aluminium workpiece, which is essentially in the T4 structural state, and exposing a first portion of the workpiece to a first precipitation hardening process by artificial ageing to change the structural state of the first portion of the workpiece, wherein a part of the workpiece is actively cooled during the first precipitation hardening process, so that a second portion of the workpiece essentially remains in the same structural state during the first precipitation hardening process. The invention further relates to an apparatus for thermally treating an aluminium workpiece and to an aluminium workpiece, especially producible with a method according to the invention.