Heat shield butting-drawing forming structure

A heat shield butting-drawing forming structure comprises an upper heat shield (1) and a lower heat shield (2) and is characterized in that the upper heat shield (1) and the lower heat shield (2) are integrally formed in structure. The upper heat shield (1) and the lower heat shield (2) are connected into a whole through a big connecting opening (3). The heat shield butting-drawing forming structure realizes good arc uniformity at the semi-circular opening of a product, high product quality, and convenience in forming; the forming and the fitted butting of the upper heat shield and the lower heat shield can be realized by only one set of molds; the yield is improved to over 98% from the original lower 90%; the utilization rate of the materials is greatly improved; the rating of the materials is lowered by 18%; and the mold and working costs are obviously lowered.