{"id":157,"date":"2022-04-20T10:59:00","date_gmt":"2022-04-20T10:59:00","guid":{"rendered":"https:\/\/mewelding.com\/?p=157"},"modified":"2022-04-21T02:59:56","modified_gmt":"2022-04-21T02:59:56","slug":"forehand-welding","status":"publish","type":"post","link":"https:\/\/mewelding.com\/forehand-welding\/","title":{"rendered":"Forehand And Backhand Technique In Oxy-fuel Welding"},"content":{"rendered":"\n
This article describes a few aspects of forehand welding and backhand welding in oxyfuel welding process. Before we get into the specifies, let us understand a few related terms, such as work angle, push angle, travel angle, etc.<\/p>\n\n\n\n
Work Angle<\/strong><\/h2>\n\n\n\n
For a butt weld between two plates, imagine a plane cutting the base plates perpendicularly. The plane is perpendicular to the direction of welding as well. When you look at this plane, work angle is the angle that the welding torch makes with the plane of the base plates.<\/p>\n\n\n\n
Likewise, for a T-fillet weld, work angle is the angle that the welding torch makes with the horizontal member \u2013 in a plane that cuts the direction of welding as well as both the base plates perpendicularly.<\/p>\n\n\n\n
For a butt pipe between two pipes, imagine a plane passing through the center of the pipes. The plane is perpendicular to the direction of welding as well, that is \u2013 the plane cuts the circumference of the pipes at two diametrically opposite points. In this plane, work angle is the angle that the welding torch makes with the surface of the pipes.<\/p>\n\n\n\n
Work angle for a fillet weld and butt weld is represented in the figure 1 below.<\/p>\n\n\n\n