Aluminum alloy railway body welding quality-1

In order to guarantee the welding quality of triangle reinforcement plate, strict technical measures should be formulated.  Taking triangle reinforcement plate welding as an example, the specific technological measures are as follows.  Triangular reinforcement plate is made of A7N01P -- T4 high-strength aluminum alloy plate, which forms a flat welding pair structure with pillow beam and traction beam (made of A7N01S -- T5). In order to ensure good welding technology, the design of weld groove is shown in the figure.  Process Resource Allocation Triangle reinforcement plate joint welding method is semi-automatic pulse MIG welding, welding power use KEMPPI 4200 water-cooled welding machine;  The purity of the protected gas is Iio(Ar) 99.999%, and the gas supply is centralized by pipeline.  Imported SAF welding wire, with DB certification, wire brand ER5356WY, specification 1.6mm.