Abstract
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.
Highlights
Bimetal composite tube uses carbon steel tube as the base to ensure its excellent comprehensive mechanical properties, and according to the requirement with special performance material as the liner to meet the special requirements [1,2,3,4]
Zheng simulated the drawing forming process of bimetal-lined pipe made of 20 carbon steel as the base tube and 316L stainless steel as the liner tube by means of the finite element analysis software ABAQUS, optimized the drawing process parameters of bimetal composite tube, and obtained the optimal drawing process parameters at the maximum residual contact pressure [9]
They analyzed the stress distribution in the drawing process of the composite pipe and studied the influence of drawing parameters on the bonding strength of the composite pipe by orthogonal test and got a modified approach for drawing force estimation of bi-metallic composite pipe forming in the light of the results of FEM simulation
Summary
Bimetal composite tube uses carbon steel tube as the base to ensure its excellent comprehensive mechanical properties, and according to the requirement with special performance material as the liner to meet the special requirements [1,2,3,4]. Bimetal composite tubes fully use the base and liner in the best physical and chemical properties. It has high strength and excellent corrosion resistance, high-temperature resistance, low-temperature resistance, wear-resistance and other special performance [5,6,7]. Other authors investigated the hydroforming of composite tube by experimental or finite element [13,14,15,16] They studied the influence factors of hydraulic formation failure of composite pipe by experiment, and examined the interaction of material properties and die geometry on the selection of hydroforming process parameters and discussed the effects of the strain-hardening exponent, initial tube wall thickness, and die corner radii on corner filling and thickness distribution of the hydroformed tube. Cao and Z.S.Zhang introduced ANSYS finite element software to analyze the composite dynamic process, and obtained the
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