Aluminum alloys for display frames

Abstract

Described is a method for forming an internal frame configured to receive a flat screen display. Aggressive partial annealing is applied to a hard temper 5182 aluminum alloy material having magnesium content greater than or equal to 3.0 wt. %. The material is partial annealed to an extent that the hard temper aluminum alloy is substantially softened with respect to its initial hardened temper while not exceeding the point where recrystallization occurs. An internal frame for a flat screen display is formed from the partial annealed aluminum alloy.

1 . A method for forming an internal frame configured to receive a flat screen display, comprising:
 aggressively partial annealing a hard temper 5182 aluminum alloy material having magnesium content greater than or equal to 3.0 wt. %, said aluminum alloy material having an initial hardened temper prior to said step of aggressively partial annealing, said step of aggressively partial annealing comprising partial annealing to an extent that said hard temper aluminum alloy is substantially softened with respect to said initial hardened temper while not exceeding the point where recrystallization occurs; and,   forming an internal frame for a flat screen display from said partial annealed aluminum alloy.   
   
   
       2 . The method for forming an internal frame configured to receive a flat screen display according to  claim 1 , wherein said hard temper 5182 aluminum alloy comprises an aluminum alloy with an H18 temper. 
   
   
       3 . The method for forming an internal frame configured to receive a flat screen display according to  claim 1 , wherein said hard temper 5182 aluminum alloy comprises an aluminum alloy with an H19 temper. 
   
   
       4 . The method for forming an internal frame configured to receive a flat screen display according to  claim 1 , wherein said hard temper 5182 aluminum alloy comprises an aluminum alloy with an H2X temper. 
   
   
       5 . The method for forming an internal frame configured to receive a flat screen display according to  claim 1 , wherein said hard temper 5182 aluminum alloy comprises an aluminum alloy with a temper at least as hard as H18. 
   
   
       6 . The method for forming an internal frame configured to receive a flat screen display according to  claim 1 , wherein said step of aggressively partial annealing results in an alloy having a yield strength greater than 200 MPa and elongation greater than 10%. 
   
   
       7 . The method for forming an internal frame configured to receive a flat screen display according to  claim 1 , further comprising: forming said partial annealed aluminum alloy into a sheet prior to forming said internal frame. 
   
   
       8 . A method for forming a flat screen display, comprising:
 forming an internal frame for a flat screen display from a hard temper 5182 aluminum alloy material having magnesium content greater than or equal to 3.0 wt. %, said 5182 aluminum alloy having been aggressively partial annealed from an initial hardened temper such that the material is substantially softened while not exceeding the point where recrystallization occurs;   inserting a display panel into said internal frame;   inserting said internal frame into an external frame.   
   
   
       9 . The method for forming a flat screen display according to  claim 1 , wherein said hard temper 5182 aluminum alloy comprises an aluminum alloy with an H18 temper. 
   
   
       10 . The method for forming a flat screen display according to  claim 1 , wherein said hard temper 5182 aluminum alloy comprises an aluminum alloy with an H19 temper. 
   
   
       11 . The method for forming a flat screen display according to  claim 1 , wherein said hard temper 5182 aluminum alloy comprises an aluminum alloy with an H2x temper. 
   
   
       12 . The method for forming a flat screen display according to  claim 1 , wherein said hard temper 5182 aluminum alloy comprises an aluminum alloy with a temper at least as hard as H18. 
   
   
       13 . The method for forming an internal frame configured to receive a flat screen display according to  claim 1 , wherein said step of aggressively partial annealing results in an alloy having a yield strength greater than 200 MPa and elongation greater than 10%. 
   
   
       14 . A method for forming an internal frame configured to receive a flat screen display, comprising:
 annealing a sheet of 5182 aluminum alloy material to a fully soft O-temper condition;   cold rolling the sheet to achieve thickness reduction in the range 20 to 30%; and,   forming an internal frame for a flat screen display from said annealed and cold rolled sheet material.   
   
   
       15 . The method in accordance with  claim 14 , wherein said cold rolling step comprises cold rolling the sheet to achieve thickness reduction of 26%.