Sometimes expulsion is not prevalent on the manufacturing floor but does exist periodically. When expulsion occurs, there is a sudden reduction of resistance between the electrodes. In this example, expulsion was detected at 265mS period of the weld. This value is recorded and can be reported through the network system. With this information, the user can pin point where expulsion exist - to a spot number on a part, to a specific part, etc... This makes it easier for the user to address process issues that generate expulsion conditions.

Also, when using the control in adaptive mode, the control automatically adjusts itself to produce an expulsion free weld conditional that the reference weld is also expulsion free.