7. Weld finishing. Defectology
Finishing the welds consists of three simple steps:
slicing the bead (figure 8);
straightening of the weld zone over 1.50 m on either side of the welded joint (figure 13) by manual pressing controlled by laser passage (in TGV rail, the weld peak must not exceed 0.3 mm over 3 m);
finish-grind the headstock to ensure shock-free wheel travel (figure 14).
Defectology: apart from inclusions due to the use of alternating current in older welding machines, rails assembled by new welding machines...
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Weld finishing. Defectology
Conclusion
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