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Now, if we narrow it down into terms of stretching is an increase of the surface area combined with thinning of the base thickness of the stock, then, yeah, I concede the point. However, I tend not to narrow things down so much. To my mind, stretching would be moving the metal's molecules further apart while drawing as little as possible into the area of the "stretch" and not pushing them out into the rest of the sheet either. Maybe I'm just thinking too much? Tim D. |
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