FIELD: process engineering.
SUBSTANCE: invention relates to foundry. A method of manufacturing a railway carriage sideframe comprises performing a sideframe casting model to form the lower half of the mould and the top half of the mould, compacting the moulding material around the model, forming the gate system with the risers and installing rods for forming the inner area of the cast sideframe pouring molten metal into the mould. The foundry model and the rods are configured with the possibility to limit the distance between a pair of axle boxes in a range of approximately ±0.038 inches. The casting is formed with a pair of columns comprising strenghteners on the inner columns surface. The roughness of the sideframe surface is less than 750 microinches RMS.
EFFECT: increased sideframe accuracy is provided.
13 cl, 11 dwg
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