CPC B21K 1/40 (2013.01) [B21J 1/06 (2013.01)] | 9 Claims |
1. A method of producing a magnesium alloy wheel hub, wherein the method comprises the following steps:
Step 1, heating a magnesium alloy bar to a temperature in a range of 350-430° C. for 20 minutes;
Step 2, initially forging the bar under a forging press at a forging speed of 6-15 mm/s;
Step 3, finally forging the bar under the forging press at a forging speed of 5-8 mm/s;
Step 4, performing microstructure test and material property test on a final forged blank to obtain layered material property distribution in a thickness direction of the final forged blank;
step 5, according to the layered material property distribution in the thickness direction of the final forged blank obtained in step 4, selecting a part of the final forged blank in the thickness direction that meets requirements to make a magnesium alloy wheel hub, and making the magnesium alloy wheel hub with the selected part by machining and cutting off a part of the final forged blank in the thickness direction that does not meet the requirements.
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