Answer:
butt welding is when 2 materials are just pushed together and welded as is without dressing, grove welding is when a grove is ground for the weld to fuse together enabling more weld to sit in the grove created, thus being a much better and stronger weld.
Contributor: David
First answer by David Aspey. Last edit by David Aspey. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 2 [recommend question].