PRESS-FORMED BODY USING MAGNESIUM ALLOY LARGE CROSS-ROLLED MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a press-formed body using a magnesium alloy large cross-rolled material. SOLUTION: The press-formed body is obtained by subjecting a magnesium alloy sheet material fed to large cross rolling for a plurality of times by a rolling mill in a state where upper and lower roll shafts are crossed in a planar position at an angle of≥1.5°to warm forming at a sample temperature of 150 to 230°C. The magnesium alloy press-formed body is produced by specifying alloy components and heat treatment conditions, and has an Erichsen value of≥12 and fine crystals of≤10μm in the forming temperature region. A technique of producing the same and a magnesium alloy formed product are provided. In this way, the forming in the temperature region where an oily lubricant can be utilized is attained, and the magnesium alloy press-formed body can be suitably used for the press-formed body of house appliance products such as a digital camera, a notebook computer and an PDA (Personal Digital Assistant). COPYRIGHT: (C)2007,JPO&INPIT