Support structure, especially welded bogie for rail vehicle

摘要

The separate flat parts, before welding, are previously assembled by means of integrated codes indicating position (4A, 5V, 6B, 6S). The position-codes consist of holes in the flat surfaces and of protuberances on the edges of flat surfaces at an angle to the flat surfaces. The separate parts and their position-codes are programmed by laser beam fusion cutting from flat material more than 1.5 millimetres thick. A basic part of the structure, such as cross-bar (2) has holes (4A) for positioning edge-side protuberances (5V) on at least one first separate part (5). Each separate part (5,6) onto which other parts (6,7) are placed, has at least one position code (6B) for positioning the other separate parts.