The study on key technology to design multi-wedge dies of rolling railway axles
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摘要: 針對車軸多楔模具設計互聯因素較多,運用有限元模擬與實驗相結合的方法,對多楔內楔實際展寬量及多楔的銜接坡角進行了研究,并提出應用等效應變作為衡量楔橫軋軋件表面及內部金屬變形的均勻性標準,找到了車軸多楔模具的設計的最佳參數.研究結果為車軸實現以軋代鍛提供基礎,對優化楔橫軋模具具有指導意義.Abstract: There are many influence factors of designing multi-wedge die.In this paper,the actual spread span of interior wedge and interface angle were studied by experiment and finite element analysis.Meanwhile,a new optimization design method for multi-wedge die was developed.The paper suggests that an effective strain is a standard of judging uniform deformation within multi-wedge rolling.The optimal parameters for the design of railway axles die were obtained.The results have an instructional action for designing multi-wedge die.
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Key words:
- multi-wedge rolling /
- railway axle /
- die
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