US2012121456A1PendingUtilityA1

Aa 6xxx aluminium alloy for precision turning

Assignee: KULAS MARY-ANNEPriority: Apr 3, 2009Filed: Mar 26, 2010Published: May 17, 2012

Est. expiryApr 3, 2029(~2.7 yrs left)· nominal 20-yr term from priority

Inventors:Mary-Anne Kulas Ivo Kolarik Josef Kreuter Annabelle Bigot Guy-Michel Raynaud

C22C 21/06C22C 21/08C22C 21/02C22F 1/05

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References

Claims

Abstract

The subject of the invention is an extruded product, of the bar or rod or tube type, with very good precision-turning properties, made of a wrought precision-turning aluminium alloy of the following composition: 0.8≦Si<1.5%, optionally 1.0<Si≦1.5%, 1.0<Fe≦1.8%, optionally 1.0<Fe≦1.5%; Cu: <0.1%; Mn: <1%, optionally <0.6%; Mg: 0.6-1.2%, optionally 0.6-0.9%; Ni: <3.0%, optionally 1.0-20.%; Cr: <0.25%; Ti: <0.1%; other elements <0.05% each and 0.15% in total; and the balance aluminium. The subject of the invention is also a precision-turning part obtained from the extruded product as defined above.

Claims

exact text as granted — not AI-modified

1 . An extruded product made of a wrought precision turning aluminum alloy having the following chemical composition, expressed in wt %:
 0.8≦Si&lt;1.5%   1.0&lt;Fe≦1.8%   Cu: &lt;0.1%   Mn: &lt;1%   Mg: 0.6-1.2%   Ni: &lt;3.0%   Cr: &lt;0.25%   Ti: &lt;0.1%   other elements &lt;0.005% each and 0.15% in total, and the balance aluminum.   
     
     
         2 . An extruded product according to  claim 1 , wherein the silicon content is greater than or equal to 1.0%. 
     
     
         3 . An extruded product according to  claim 1 , wherein the iron content is greater than 1.0 and up to 1.5%. 
     
     
         4 . An extruded product according to  claim 1 , wherein the manganese content is less than 0.6%. 
     
     
         5 . An extruded product according to  claim 1 , wherein the magnesium content is 0.6-0.9%. 
     
     
         6 . An extruded product according to  claim 1 , wherein the nickel content is 1.0-2.0%. 
     
     
         7 . A precision-turned part made from an extruded product according to  claim 1 . 
     
     
         8 . A precision-turned part made from an extruded product according to  claim 2 . 
     
     
         9 . A precision-turned part made from an extruded product according to  claim 3 . 
     
     
         10 . A precision-turned part made from an extruded product according to  claim 4 . 
     
     
         11 . A precision-turned part made from an extruded product according to  claim 5 . 
     
     
         12 . A precision-turned part made from an extruded product according to  claim 6 . 
     
     
         13 . An extruded product according to  claim 2 , wherein the iron content is greater than 1.0 and up to 1.5%. 
     
     
         14 . An extruded product according to  claim 2 , wherein the manganese content is less than 0.6%. 
     
     
         15 . An extruded product according to  claim 3 , wherein the manganese content is less than 0.6%. 
     
     
         16 . An extruded product according to  claim 5 , wherein the magnesium content is 0.6-0.9%. 
     
     
         17 . An extruded product according to  claim 3 , wherein the magnesium content is 0.6-0.9%. 
     
     
         18 . An extruded product according to  claim 4 , wherein the magnesium content is 0.6-0.9%. 
     
     
         19 . An extruded product according to  claim 2 , wherein the nickel content is 1.0-2.0%. 
     
     
         20 . An extruded product according to  claim 3 , wherein the nickel content is 1.0-2.0%.

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