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Production or working drawings are specialized engineering drawings that provide information required to make the part or assembly of the final design. Working drawings rely on orthographic projection and many other graphical techniques to communicate design information for production. Though there is a common method for representing mechanical parts for production, many industries use specialized production drawings. In addition to standard mechanical drawings, two types of specialized drawings, piping drawings and welding drawings, are described in this chapter. Reprographics is the storage, retrieval, and copying of engineering drawings. Reprographics techniques such as diazo printing, and the digital techniques used with CAD, are covered in this chapter.
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 Chapter Outline
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