The National Shipbuilding Research Program 1985 Ship Production Symposium Volume 2 Paper No. 16: Computer Optimizing of Bevel Angles for Welded Pipe Joints
CASE INST OF TECH CLEVELAND OH
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The most common method for preparing the bevel-angle for welded pipe construction is to keep it at a constant value say 37 degrees around the entire periphery of the branch pipe. This paper explores the optimized bevel-angle as a function of pipe radii, wall thicknesses, centerline offset, and intersecting angle to keep the resulting weld cross section constant and thus minimize the weld volume while insuring clearance for total weld penetration. The advantages of using the optimized bevel angle are demonstrated by computer simulation for pipe diameters from 4-12 to 24 for wall thicknesses over the range of O.237 to 1.312. The ratio of the fixed bevel weld volume to the optimized bevel weld volume are shown to range from 1.5 to 5 which implies phenomenal reductions in the attendant welding time.
- Fabrication Metallurgy
- Marine Engineering