Collaring Technology | Pipe Tee forming - T-DRILL |
Pipe branching – i.e. connecting a branch pipe to a run pipe – using T-DRILL method is also called collaring. The joint can be completed by brazing (= lap joint) or by welding (butt joint). For the lap joint process, a round hole is drilled in the pipe wall using a collaring head. After the tube wall is penetrated, two forming pins are extended from the drill bit.
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