Shaping curve of the right-angle step for a cross wedge rolling elliptical shaft
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摘要: 根據楔橫軋工藝的特點,推導了橢圓軸在軋齊過程中螺旋斜錐體大端半徑隨軋件轉角變化的旋轉公式.通過對軋齊過程的分析,獲得了各階段的體積公式,并依據體積平衡原理得到了橢圓軸直角臺階軋齊曲線.最后采用剛塑性有限元軟件Deform-3D對橢圓軸的軋齊過程進行了模擬,取得了良好的結果,同時驗證了曲線方程的正確性.Abstract: A rotation formula which indicates the big end radius of the spiral declined cone changing with the rotation angle of rolled pieces for an elliptical shaft was proposed according to the process characteristics of cross wedge rolling.The volume formula for each stage was obtained by analyzing the shaping process.The shaping curve of the right-angle step in cross wedge rolling was derived from the volume balance principle.Finally,the shaping process of the elliptical shaft was simulated with the rigid-plastic FEM software Deform-3D.Excellent simulation results verified the correctness of the shaping curve.
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Key words:
- cross wedge rolling /
- elliptical shaft /
- shaping curve /
- finite element method
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