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Subject: can I bore dia 155 mm in aluminium using a ISO 30 spindle

Date: 08/08/01 at 1:32 PM
Posted by: B.S.saini
E-mail: rebuild@vsnl.net
Message Posted:

Hi everybody,

I am looking for a piece of advice, I am planning to buy a CNC milling machine which has a ISO 30 spindle.
1. From Where Can I get a fine boring bar capable of boring dia 155 mm & has ISO 30 taper shank.
2. Is it advisable to use a fine boring bar for boring Dia 155 mm, in a iso 30 spindle.The tolerance on dia of bore is H7. How can I make it.
3. Do I necessarily need ISO 40 spindle for boring any dia in excess of 150 mm. some one told me that it is not advisable to machine a dia as large as 150 mm using iso30 spindle.

Please advice.
bhagwan swaroop.

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