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OCTOBER 19-20, 2012 - YMCA University of Science & Technology

OCTOBER 19-20, 2012 - YMCA University of Science & Technology

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Proceedings <strong>of</strong> the National Conference on<br />

Trends and Advances in Mechanical Engineering,<br />

<strong>YMCA</strong> <strong>University</strong> <strong>of</strong> <strong>Science</strong> & <strong>Technology</strong>, Faridabad, Haryana, Oct <strong>19</strong>-<strong>20</strong>, <strong>20</strong>12<br />

Figure 14 Equivalent strain<br />

Figure 15 Equivalent stress<br />

Figure 16 X- Direction forming displacements<br />

Figure 17 Forming Zone<br />

From figure 11-17<br />

• Low Strain - Minimal stretch or compression in either the major or minor directions.<br />

• Strong Wrinkle Tendency - Slight stretch in one direction and compression in the other with material<br />

thickening. Wrinkles are very likely to occur.<br />

• Wrinkle Tendency - Stretch in one direction and compression in the other with slight material<br />

thickening. Wrinkles may occur.<br />

• Loose Material - Stretch in one direction and compression in the other with slight material thinning.<br />

Surface issues like "oil canning" may result.<br />

• Semi-Tight Panel - Stretch in one direction and slight compression in the other with material thinning.<br />

• Plain Strain - Stretch in only one direction with material thinning.<br />

• Tight Panel - Stretch in two directions with highest material thinning. Stiff dent resistant panel with<br />

possible thinning problems may result.<br />

541

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