Titanium-steel composite plate produced based on transition intermediate blank and preparation method of titanium-steel composite plate

The invention relates to a titanium-steel composite plate produced based on a transition intermediate blank and a preparation method of the titanium-steel composite plate. The titanium steel composite plate is formed by compounding two groups of single-layer combined blanks; wherein the single-layer combined blank comprises a transition middle blank, a base plate and a first steel plate which are sequentially arranged from top to bottom; compounding is performed between the two first steel plates; and the transition intermediate blank comprises a titanium plate and a second steel plate which are sequentially arranged from top to bottom. According to the titanium-steel composite plate, in the preparation process, the middle blank is compounded in advance, and therefore the compounding rate can be guaranteed; in addition, the transition middle blank can be prefabricated in advance to manufacture composite boards with different thicknesses, and the production period is shortened; and finally, the surface of the