I received the following e-mail request:

Dear Sir,
We would like to shot peen aluminium diacast alloy wheels for 4 wheelar using air-less (wheel type) shot peening machine.
Can you advise us on following?
what media to be used?
What arc height is required?
Size of shots?

Thank you

Note: I asked for some more details

Dear Sir,
We need texture finish for good look on wheel before painting and for fatigue stregth improvement. Please advise if shot peening is possible on aluminium wheel or not possible.

Secondly, please confirm how we can measure RA value after shot blasting? What RA value is required on aluminium wheel?

regards,
K. L. K.