Welding apparatus

摘要

A welding apparatus provided with a base frame (4) having a power source portion (7), an electrode die portion (3) having a lower base portion (1) and an upper base portion (2) at least one of which is driven to ascend and descend to close to and part from each other, plural lower electrode portions (5) attached to the lower base portion (1), and plural upper electrode portions (6) attached to the upper base portion (2). Further, a lower contact conductor (8) which electrically connects the lower electrode portions (5) to the power source portion (7) intermittently, and an upper contact conductor (8) which electrically connects the upper electrode portions (6) to the power source portion (T) intermittently, are provided to the base frame (4) side. <IMAGE>