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GD&T task specific measurement uncertainty evaluation for manufacturing floor
oleh: Osamu Sato, Toshiyuki Takatsuji, Yuka Miura, Shouichi Nakanishi
Format: | Article |
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Diterbitkan: | Elsevier 2021-12-01 |
Deskripsi
The shapes of industrial products are expressed as the features defined by the manner of Geometric Dimensioning and Tolerancing (GD&T) for the purpose of product manufacturing. Coordinate measuring machines (CMMs) are widely used for products' geometrical features inspection in manufacturing floors. For proper product quality control, the verification results shall be validated with the consideration of measurement uncertainty related to the test. There exists difficulty in the evaluation of the task specific uncertainty of dimensional measurement using CMMs. That is because of the several number of uncertainty contributors caused by the complex mechanical components of CMMs and the environmental variations through the measurements. In this research, an easy-to-execute verification procedure of GD&T inspection and its task specific uncertainty evaluation is developed. The values of products’ geometrical features and their measurement uncertainties can be calculated. The method is widely available on the facilities installed in ordinal manufacturing floors.