Pin for friction welding to metal plates has pointed tip whose flanks connect with groove surrounding it, into which molten metal flows during welding, the groove being surrounded on outside by circular rib
摘要
<p>Pin for friction welding to metal plates has a pointed tip (5) whose flanks (6) connect with a groove (7) surrounding it, into which molten metal flows during welding. The groove is surrounded on the outside by a circular rib (4).</p>
