公开(公告)号：US20210178504A1

公开(公告)日：2021-06-17

申请号：US17122913

申请日：2020-12-15

Applicant: Titan Trailers Inc.

Inventor： Michael Kloepfer ,  Tom Pursley

IPC: B23K9/127 ,  B23K9/095 ,  B23K9/02 ,  B23K9/10

Abstract: A welding apparatus includes a welding torch mounted to a frame and electrically connectable in a source current path of a welding current source, and an electrically conductive return current roller rollably mounted to the frame a substantially fixed distance from the welding torch. The return current roller is electrically connectable in a return current path of the welding current source, and has a rim sized and shaped to roll in electrically conductive contact with an unwelded seam of a workpiece.