Welding torches are an essential tool for welding and metalworking. However, there are several synonyms that can be used instead of "welding torches." These synonyms include:
1. Welding gun
2. Welding wand
3. Gas torch
4. Flame torch
5. Oxy-acetylene torch
6. Plasma torch
7. Cutting torch
8. Soldering iron
9. Brazing torch
10. Heating torch
All of these synonyms refer to a tool that produces heat, flame, or plasma to fuse two pieces of metal together. Each synonym may have a slightly different application or use in the welding process, but they all ultimately serve the same purpose.