Hot welding is a term that describes the type of environment we place a part into during the entire welding process. High temperature preheat eliminates localized expansion and contraction, effectively eliminating weld-induced expansion stress. By maintaining the high temperature throughout the procedure, we neutralize the contraction stresses that would occur during solidification of the weld deposit. A very slow cool-down causes proper realignment of the molecular structure, preventing hardness and distortion. Please take the time to read our section about Cast Iron Welding.
You can see pictures of welding repairs done by LNS by clicking on the links below. These pages take time to load. Please be patient. Thanks.
Caterpillar Transmission Case 1
Caterpillar Transmission Case 2