Temat: measuring errors - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: From testing to knowing
Autorzy:: Balle, B.
Powiązania:: https://bibliotekanauki.pl/articles/132114.pdf
Data publikacji:: 2015
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: highly precise screw compressors
cold temperatures
coordinate measuring machines
source of errors
Opis:: Ice factories, meat processing plants and breweries around the world rely on the refrigeration technology experts from GEA Refrigeration Germany GmbH. Based in Berlin, the company manufactures highly precise screw compressors, the heart of the cooling systems. In order to ensure and improve the quality and energy efficiency of its compressors, the company strives to permanently eliminate errors in design and production, and at its suppliers. Three ZEISS coordinate measuring machines, as well as ZEISS CALYPSO and ZEISS GEAR PRO software are helping the company come closer to its goals.
Źródło:: Advanced Technologies in Mechanics; 2015, 2, no. 4 (5); 16-21
2392-0327
Pojawia się w:: Advanced Technologies in Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Practical measurement strategies for verification of freeform surfaces using coordinate measuring machines
Autorzy:: Rajamohan, G.
Shunmugam, M. S.
Samuel, G. L.
Powiązania:: https://bibliotekanauki.pl/articles/220456.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: freeform surface
coordinate measuring machine
machining errors
probe size
sampling strategies
substitute geometry
Opis:: Freeform surfaces have wider engineering applications. Designers use B-splines, Non-Uniform Rational Bsplines, etc. to represent the freeform surfaces in CAD, while the manufacturers employ machines with controllers based on approximating functions or splines. Different errors also creep in during machining operations. Therefore the manufactured freeform surfaces have to be verified for conformance to design specification. Different points on the surface are probed using a coordinate measuring machine and substitute geometry of surface established from the measured points is compared with the design surface. The sampling points are distributed according to different strategies. In the present work, two new strategies of distributing the points on the basis of uniform surface area and dominant points are proposed, considering the geometrical nature of the surfaces. Metrological aspects such as probe contact and margins to be provided along the sides have also been included. The results are discussed in terms of deviation between measured points and substitute surface as well as between design and substitute surfaces, and compared with those obtained with the methods reported in the literature.
Źródło:: Metrology and Measurement Systems; 2011, 18, 2; 209-222
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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