There is no casting defect and blow holes in the Centrifugal Casting,
100% DRY MACHINING:

Advantages of Dry Machining:

1. Dry machining ensures absence of moisture/oil retention on the material which thereby results in more efficient bonding.

2. It gives Porosity & Blow holes free casting to the Piston.

3. This results in lower rejection level in bonding process vis-a-vis machining with coolants, Ensuring higher profitability at Customer end.

Blasting

Each and every ring is blasted with fine shorts to remove burns & sharp edges