Research on micro vibration forming of Al-based superplastic alloy and Zr-based bulk metallic glass

Micro forming is a suited technology to manufacture very small metallic parts (several mm∼μm). Al50B3 superplastic alloy with very small grains has a great advantage in achieving micro deformation under low stress due to its relatively low strength at a specific high temperature range. Micro forming of Zr
62
Cu
17
Ni
13
Al
8
bulk Metallic glass as a candidate material for this developing process are feasible at a relatively low stress in the supercooled liquid state without any crystallization during hot deformation. In this study, the micro formability of Al50B3 superplastic alloy and bulk metallic glass, Zr
62
Cu
17
Ni
13
Al
8
, was investigated with the specially designed micro vibration forming system using pyramid-shape, V-shape and U-shape micro die pattern. The vibration load was effected to metal flow in the micro die and improve the micro formability of Al50B3 superplastic alloy and Zr
62
Cu
17
Ni
13
Al
8
bulk Metallic glass.