WIMA welding is a resistance welding technique used in the manufacture of metal packaging. This technique was developed by Soudronic in 1975 and is used to weld the side seam of three-piece containers.
The WIMA welding technique uses a drawn and flattened copper wire as an intermediate electrode between the can seam and the copper welding sheaves. The copper wire increases the contact surface in the weld zone, resulting in a stronger and better weld. In addition, the WIMA welding technique reduces the heat-affected weld zone, which reduces hardening and seam thickness.
WIMA welding also allows for greater efficiency in the welding process, which translates into higher production speed. Soudronic’s body making machines using the WIMA welding technique can produce more than 500 containers per minute.
In summary, WIMA welding is a resistance welding technique used in the manufacture of metal packaging. This technique uses a drawn and flattened copper wire as an intermediate electrode between the can seam and the copper welding sheaves, which produces a more solid and proper weld. The WIMA welding technique also allows for greater efficiency in the welding process and higher production speed.