- Mechanical properties for example ductility, toughness, percentage reduction in area, percentage elongation and resistance to shock and vibration are better due to the refinement of grains.
- The impurity similar to slag are squeeze into fibres and distributed all over the metal.
- The particle structure of metal is refined.
- The porosity of metal is mostly eliminating.
- It generates poor surface finish, due to rapid oxidation and scale construction on metal surface.
- Due to poor surface finish, close tolerance cannot be maintain.
- It requires costly tools.
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