| 摘要 |
<p>Tubular members (10) for use in vehicle frames are easily and economically produced using a hydroforming process in which a high pressure fluid is presented to the interior of a tubular member (10), thus causing the tube to expand to meet the interior walls of a forming die (35). Tubular members (10) can be formed having significant variations in their circumference, diameter along their lengths, or gage along their lengths by using a stamped blank (15) having a predetermined shape which is formed into a preformed tube (25) which roughly mirrors the shape of the desired finished tubular member (10).</p> |
