Bolduc Leroux can meet your needs thanks to its wide experience. Our team controls the following welding processes :


The FCAW is a semi-automatic or robotized welding process. An electric current causes the electrode to merge continuously with the parts to be welded. The electrode contains a “flux” which rises to the surface of the weld. This welding process is often used given the speed of execution. Several types of flux are used, either solid wires, flux cored wires or powder flows.


The GMAW is similar to the FCAW process, but the electrode does not contain “flux”. This process is very fast.


TIG or GTAW is a process where a high current passes through a tungsten electrode and forms a melt. The GTAW is a method that allows a high precision of work.

Each method has its advantages and disadvantages depending on the application, depending on whether it is welded in the workshop or outdoors, depending on the accessibility of the part, depending on whether or not it is possible to use robots.


When choosing a welding process, it is necessary to take into account a number of factors:

  • The thickness of the material
  • The composition of steel
  • The specifications
  • The location
  • The access to the seal
  • The welding position
  • The process efficiency