FIELD: manufacture of different-designation bimetallic articles, mainly bimetallic article with corrosion surface.
SUBSTANCE: method comprises steps of inserting cylindrical blank of basic material into tubular blank of coating material, for example of stainless steel with free running fit and providing gap between inner and outer blanks consisting 0.002 - 0.01 of outer diameter of tubular blank; sealing one end of bimetallic blank and subjecting it to cold reduction at reduction degree along diameter in range 0.3 - 15%; sealing other end of bimetallic blank, heating and deforming blank at least during one pass in mill for forging-rolling in step mode.
EFFECT: enhanced quality of coating, improved strength of layer joining, lowered cost of manufacturing process.
5 cl, 6 dwg
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