Back Gouging for Full Penetration Welds
When it comes to critical strength application or members where pressure vessels are involved, on many occasions, we will have to complete an entire penetration weld so as to meet the parameters of the job or project. The term Complete Joint Penetration (CJP) is how it is referred in the industry. In most cases, these welds are to be completed only from one side, requiring some kind of root pass on an open root joint unlike other applications where access is possible to the entire backside where an open root pass kind of weld is not required.
When a full penetration weld needs to be completed where both sides are going to be welded, quite often we may have to back gouge out the root of the primary weld before we apply any kind of filler material behind the joint of the weld. The amount to be taken away, the type of metal used and often the location or position of the weld will be the determining factor on