FIELD: transportation.
SUBSTANCE: invention is related to manufacturing of main devices of railway tracks and may be used in manufacturing of pointwork tongues. Method includes shaping of tongue from rail biller with specified profile of working surface by means of mechanical processing of stock. At first tongue is previously shaped from rail billet with reduced working surface profile relative to specified one. Then working surface of tongue is fused with electrodes, creating a layer of metal with structure of pearlite or austenite grades. Afterwards working surface of tongue with specified profile is finally formed from fused layer of metal.
EFFECT: improved operational resistance of pointwork tongues.
4 cl
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