The invention relates to a method of improving the uniformity of the wall thickness of a
magnesium alloy superplastic gas bulging formed piece by utilizing an inorganic
adhesive. The method concretelycomprises the following step of utilizing multiple inorganic adhesives with different viscosities, or
coating different deformation areas of a
magnesium alloy bulged piece with the inorganic adhesivewith different thicknesses and same
viscosity, wherein the deformation rates of different deformation regions are homogenized through the "adhesion" effect of the inorganic
adhesive, so that the improvement effect to different wall thicknesses of
magnesium alloy is achieved; a selected type of the inorganic
adhesive is a double-component adhesive, a component A is water glass, and a component B is formed by mixing and
sintering silica,
alumina and the like; and by changing the content of the water glass, the adhesives with different viscosities can be obtained. By adopting the method of the invention, the problem of unevenness in wall thickness of a
magnesium alloy plate caused by factors including plate
instability, unevenness in stress, different
thinning rate and poor die adhering effect in the
magnesium alloy high temperature gas bulging forming process can be solved, the formation effect of the process is further improved, operation is simple, realization is easy, the cost is lowered, and the production efficiency is improved.