US2013209309A1PendingUtilityA1

Magnesium alloy sheet having improved formability at room temperature, and method for manufacturing same

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Assignee: LEE YOUNG SEONPriority: Oct 27, 2010Filed: Aug 29, 2011Published: Aug 15, 2013
Est. expiryOct 27, 2030(~4.2 yrs left)· nominal 20-yr term from priority
Inventors:Young Seon LeeYong Nam KwonSeong Hoon KangKwang-Seok LeeDae-Yong KimJi Hoon KimSang Woo Kim
B24C 1/10C22C 23/02B24C 5/005C21D 7/04C21D 7/06Y10T29/47C22C 23/00C22F 1/06Y10T29/479
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Claims

Abstract

Provided are a magnesium alloy sheet having improved formability at room temperature and a method for manufacturing same. According to one embodiment of the present invention, the method for manufacturing the magnesium alloy sheets having improved formability at room temperature is characterized by comprising a first pretreatment step of applying residual compression stress to the surface the magnesium alloy raw material.

Claims

exact text as granted — not AI-modified
1 . A method of manufacturing a magnesium alloy sheet with improved normal temperature formability, the method comprising:
 a first step of performing a pretreatment which imparts compressive residual stress to a surface of a magnesium alloy raw material.   
     
     
         2 . The method of  claim 1 , wherein the first step is one process of sand blast, shot peening, laser peening, or ultrasonic peening. 
     
     
         3 . The method of  claim 1 , further comprising:
 an annealing step of annealing the magnesium alloy raw material prior to the first step.   
     
     
         4 . A magnesium alloy sheet with improved normal temperature formability manufactured by the method of  claim 1 .

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