Abstract: Based on CAD/CAE technology, the injection mould for the steering protection board of the automobile inner decoration was designed rationally in this paper. By the use of Pro/E soft, the three dimensional injection mould was achieved. And the optimum gating location was attained, the exhaust system was rationally designed on Moldflow soft, which innovated the way of the fabrication of the injection mould. According to the structure of the product, the layout of the central convex surface in the moving mould was achieved. The special tilt mandril of the core side-pulling mechanism were designed, which simplized the injection mould structure and economizes the cost.

Key words: Steering protection board, CAD/CAE, Tilt mandril, Best gating location, Exhaust system