The Changing Face of CAD Annotation  

Oleh:

Fischer, Bryan R.

Jenis: Article from Bulletin/Magazine - ilmiah internasional
Dalam koleksi: Machine Design (Soft Copy ada dalam http://search.proquest.com/) vol. 83 no. 5 (Mar. 2011), page 46-49.
Topik: Industry; annotation; engineering; CAD

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM44.64 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Today, industry stands at the crossroads of the old world of 2D drawings, the world of annotated 3D models, and the future where 3D engineering data can be consumed and understood directly by software. Today, the two international geometric and tolerancing (GD&T) standards that cover annotation largely define engineering specifications in terms of how they are graphically presented on a 2D drawing or annotated 3D model. No doubt, modern 3D CAD software lets engineers model visualize, and test accurate representations of complex geometries much more quickly than in the past. But CAD geometry alone cannot define acceptable as produced parts and assemblies. High-definition models contain a complete semantic definition of the product (different from the high definition of videos, which merely have a higher resolution). Native CAD data and other data formats today are almost complete enough for industry-wide adoption of 3D MBD. The next five years should bring exciting developments.

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