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How to drill a hole with φ1.2 at a depth of 35?

2017-01-02View Original

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Solution needed: How to drill a hole with a diameter of φ1.2 at the center of a 304 stainless steel round bar with a diameter of 60 mm, requiring a depth of 35 mm? What is the appropriate machining method, and which drill bit and processing techniques should be used?
Reply #22017-01-03
Jet head! Such a small and deep hole! ! It’s not easy!
Reply #32017-01-03
An electric spark drilling machine can be used to drill holes with diameters ranging from ∮0.3 to ∮3.0 mm, and the maximum depth-to-diameter ratio can exceed 200:1
Reply #42017-01-03
I would like to ask what the specific use of Kong in China is, and whether it can be made larger
Reply #52017-01-03
A nozzle needs to be made, and the holes cannot be too large; the steam pressure is too high, so only such small holes can be used
Reply #62017-01-03
Well, it’s indeed quite difficult. So I have no idea at all right now……
Reply #72017-01-03
What level of precision can electric spark drilling ensure for the diameter of the hole? Can H11 be guaranteed? Thank you
Reply #82017-01-03
You need to consult the manufacturing unit for this, as the precision depends greatly on the equipment and the operators.
Reply #92017-01-03
It is difficult to achieve drilling of a φ1.2 hole to a depth of 35 mm in 304 stainless steel using machining techniques. Waste drill bits and materials. Optimal laser drilling process.

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