Chapter 14 Metal-Forging Processes and Equipment - ppt download

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Chapter 14 Metal-Forging Processes and Equipment - ppt download: FORGING the work piece is shaped by compressive forces applied through various dies and tooling Cold forging Hot forging Cold forging requires more force than hot forging due to the higher strength of the work piece Unlike rolling, it produces discrete parts

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Inscribe a Heptagon in a Circle

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Inscribe a regular heptagon in a circle of diameter 60 mm Heptagon Inscribed in a circle Draw a circle of diameter 60mm. Draw a diameter line AB. By taking center A and radius AO, draw an arc EF. Draw a straight line EF, intersecting the line AB at point G. Length GE or GF is the representing length of sides of pentagon. Therefore, by taking distance equal to EG in the compass, make seven equal divisions 1, 2, 3, 4, 5, 6 and 7 on the circle. Join all the divisions by straight lines and obtain the heptagon.
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