Abstract The spin forming parameters of bimetallic composite pipe were optimized by FEM and experiment, and the torque and the residual contact pressure were analyzed during forming process. Adoption of The orthogonal test of four factors and five levels to gain the optimal spinning parameters (δ = 0.16mm, Ψ = 0.4mm, β = 3.0∘, f = 0.5) and the effects of factors on analysis indicators under the condition of maximum residual contact pressure and small torque. The simulation results showed that the residual contact pressure was nearly 1MPa higher and the torque was lower about 160N·m than unoptimized results. It proved that the orthogonal test method was effective for the optimization of spinning parameters of bimetal composite tube. The accuracy of numerical simulation value was verified by the drawing experiment of the composite tube.

中文翻译：

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基于正交试验的20/316L双金属复合管旋压参数优化

摘要 通过有限元法和实验优化了双金属复合管的旋压成形参数，分析了成形过程中的扭矩和残余接触压力。采用四因素五水平正交试验，得到最优纺丝参数（δ=0.16mm，Ψ=0.4mm，β=3.0∘，f=0.5）以及最大条件下各因素对分析指标的影响残余接触压力和小扭矩。仿真结果表明，残余接触压力比未优化的结果高近1MPa，扭矩低约160N·m。证明正交试验法对双金属复合管旋压参数优化是有效的。通过复合管的拉拔实验验证了数值模拟值的准确性。