| 摘要 |
<p>A machine for removing the internal bead of longitudinal seam welded tubing by flattening includes a mandrel (42) to be positioned within the tubing (11), an external hammer which includes a vertically oscillating roller (26) which hammers the outside of the tubing opposite the weld (41) so as to force the mandrel (42) against the bead (41) to flatten it and a second roller (25) which serves as an anvil to restrain and shape the external surface of the tube (11) including the weld (41) to prevent the tubing from being deformed.</p> |
