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Scratches on fork pipe surface

August 2, 2009

My problem is scratches on the surface of product.Product name is Front fork Pipe, used in motor cycle front shocks.
Length of Pipe is = 530 mm
Outside Diameter of Pipe is = 25.40
Inside Diameter of the pipe is = 16.80 mm
HRB of the pipe is = 20~23
Surface Roughness Required is = 0.6 Rz max

Your help & Guidance required in this regard.

Thanks

NADEEM UL HAQ
Production Manager - KARACHI, PAKISTAN

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First of two simultaneous responses --

Dear Nadeem Ul Haq,

Your question is not fulfilled. Kindly convey in what process is the pipe made to achieve 0.60 Rz max. For example by polishing,grinding or any. Specify what kind of tool you use during manufacturing.

It will be more helpful to guide in your subject regards.

Regards
M.Arunachalam
India

Arunachalam.M
- Coimbatore, Tamil Nadu, India
August 6, 2009

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Second of two simultaneous responses --

#1 I'd check to find out where and how the scratches are occurring and try to correct the problem before it occurs. If it is an on going problem the #2 I'd take steps to protect the part such as masking or padding area prior to assembly. #3 Only as a last resort would I consider buffing out the scratches with a non-woven wheel.

AF Kenton
retired business owner - Hatboro, Pennsylvania
August 6, 2009