Making method of surface double-walled hollow turbine blade

The invention discloses a making method of a surface double-walled hollow turbine blade, and belongs to the technical field of rapid casting. The method comprises the following steps: designing and preparing negative resin of a double-walled hollow turbine blade containing impact openings, and separately preparing a resin outer wall corresponding to a double-walled cooling channel, and resin prototype; making the ceramic core of the double-walled cooling channel through a compression molding technology, inlaying the ceramic core in the resin prototype, and respectively assembling the resin prototype with the outer wall and the resin shell to make resin prototype containing the ceramic core; making a ceramic mold blank containing the ceramic core through a gel injection molding technology, freeze-drying, carrying out degreasing pre-burning, and post-processing a ceramic mold; and making a turbine blade through a casting technology, and carrying out laser or electric spark processing to obtain ...