Analyzing Manufacturing Tolerances for Sensing and Inspection
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Authors
Sobh, Tarek M.
Henderson, Thomas C.
Zana, Frederic
Issue Date
1998
Type
Article
Language
en_US
Keywords
Computer aided design , Computer aided manufacturing , Engineering , Mechanical engineering
Alternative Title
Abstract
In this work we address the problem of tolerance analysis across the domains of industrial inspection using sensed data, CAD design, and manufacturing. Instead of using geometric primitives in CAD models to define and represent tolerances, we use stronger methods that are completely based on the manufacturing knowledge for the objects to be inspected. We guide our sensing strategies based on the manufacturing process plans for the parts that are to be inspected and define, compute, and analyze the tolerances of the parts based on the uncertainty in the sensed data along the different toolpaths of the sensed part. Our approach unifies tolerances across sensing CAD and CAM, as it captures the manufacturing knowledge of the parts to be inspected, as opposed to just CAD geometric representations.