| 摘要 |
A drive roll ( 180 ) adapted and configured to feed weld wire ( 54 ) comprises first and second opposing sides ( 238, 239 ) and an outer body surface ( 290 ). The outer body surface ( 290 ) comprises a base body surface (BBS), and at least one elevated wire interface ( 244 ) extending outwardly from and along at least a major portion of the base body surface. The elevated wire interface ( 244 ) can rotationally drivingly engage the weld wire ( 54 ), which enables the drive roll ( 180 ) to advance the weld wire ( 54 ) along e.g. a desired path of travel such as to a welding arc. |
