Method for the production of a pipe bend, in particular a right-angled bend

摘要

The invention relates to a method for the production of a pipe bend with a rounded outer side made up of pieces of tube of arbitrary but equal cross-section (25, 26), each piece of tube being bevelled at an angle at one end, the said angle being half of the required angle of the pipe bend, the longest part of the two bevels (23, 24) being deformed in the form of a sphere over half its circumference, as indicated at (28), the material which projects beyond the cutting planes (23, 24) is cut off, as indicated at (29), and the two parts are then welded together. IMAGE