SPD process are forming metal by making the material serious damage to fixed image by trying to keep the original format of the material. The metal has gone through this will make the structure changed to commas will be reduced a bit grainy (UFG) makes the strength and durability of the material properties, including the other side by the main aim of the process of forming this is material that has the strength and light weight. Metal forming with SPD process will have better mechanical properties, metal forming a regular pattern as a result of a small bit of the so-called UFG.
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