Die-free paired wheel flexible hot spinning forming control method

The invention discloses a die-free paired wheel flexible hot spinning forming control method, and belongs to the field of metal pipe plastic processing. The dieless paired wheel flexible hot spinning forming control method comprises the steps of spinning blank size design, spinning pass design, gap design between an inner spinning wheel and an outer spinning wheel, spinning track design, numerical control spinning program code generation on programming software, spinning wheel design, measurement of the gap between the inner spinning wheel and the outer spinning wheel, spinning machining parameter determination and blank heating. After the blank is preheated in advance, the blank is fed into a numerical control spinning machine tool, an induction heating device is arranged at the position, located on the outer side of the blank, in the spinning machine tool, and spinning machining is conducted; according to the method, the defects of die spinning can be overcome, die investment is avoided, the research and de