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Abstract：
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In order to reduce the forming load of steering gear and increase the life of forming die, based on the analysis of structural characteristics and technicality of steering gear, and combined with the characteristics of metal flow in multi-directional forming process, a multi-directional precision forming process scheme of steering gear was developed. Then, the multi-directional precision forming process of steering gear was simulated by finite element simulation software DEFORM-3D，and the metal flow law in the forming process was analyzed and the forming load was predicted. The results show that the steering gear is filled evenly, and the corner is filled fully. However, the maximum forming load of the multi-directional precision forming process is 29% lower and the forming time is 53% shorter than that of the unidirectional block extrusion forming, and they are beneficial to increase the life of forming die. Furthermore, the experiment of the multi-directional precision forming is conducted, the formed steering gear is filled fully, and the forming load is basically consistent with the predicted load. Thus, the experimental results show that the process scheme is feasible and practical.
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Funds：
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郑州市重大科技专项资助项目（152PZDZX007）
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AuthorIntro：
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刘丹（1981-），男，硕士，高级工程师，E-mail：13592445859@163.com
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Reference：
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