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Geometric Dimensioning and Tolerancing

Geometric Dimensioning and Tolerancing

Geometric Dimensioning and Tolerancing

(OP)
Do you know a excellent engineering book which explain with a lot of applications and/or case studies the GD&T ? Tolerancing shaft and bores. Thanks

RE: Geometric Dimensioning and Tolerancing

Most people I know use Lowell Foster's Geo-Metrics books (Addison Wesley).

RE: Geometric Dimensioning and Tolerancing

Hi there Tabby1

Further to EnglishMuffin's recommendation.

I have found that appropriate Mechanical Engineering standards have some good examples and descriptions of geometric tolerancing. Not so much design but what they mean etc.

The one I last looked at was AS 1100.101 Technical Drawing.
(Australian Standard). I'm sure there would be an equivalent BS or american standard.

djw

RE: Geometric Dimensioning and Tolerancing

Personally, I would use a simple list to find out which Geometric Tolerance symbols mean what then look to the process capability and assembly requirements for the actual values and tolerances to use.
You don't want to end up using a tolerance for something just because you saw it in a case study.

Also, certain machine operators/QC people are used to seeing certain GT's. If you can find out the normal one's used to describe the components they make, you can save yourself some time explaining things later.

I'm no expert on GT's but that method has worked for me in the past.

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