These six views may be drawn if necessary 15

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Unformatted text preview: •  •  •  Annealing Quenching Tempering Pla;ng Thermal spraying 12 Lecture 2 Engineering Drawing I 2.1 Orthographic view drawings A pictorial an object as it q༇  appears todrawing showsbut not in its true the observer, dimensions q༇  In industry, a complete and clear description of the shape and size of an object to be made is necessary… q༇  Therefore, a number of views systematically arranged, are used. q༇  This system of view is called multi-view projection 13 Coordinate systems and orthographic views Coordinate Systems • Consists of three mutually perpendicular lines that meet at a single point in 3D space. • Two Types – Positive Coordinate system (Right Handed) – Mostl...
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