Pulse Current Auxiliary Tensile and Bulging of Light Metal Alloy

Jing Yuan Liu; Kai Feng Zhang; Shao Song Jiang

doi:10.4028/www.scientific.net/AMR.690-693.2356

Paper Titles

Flow Stress Models Analysis for Metal Powder Forming Simulation
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Investigation of Effective Parameters of Spring-Back in CK67 Steel Sheet Metal Using Finite Element Method
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Parameter Optimization of the Injection Molding Process for a LED Lighting Lens Using Soft Computing
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Plastic Instability Criterion of Radial Ring Rolling
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Pulse Current Auxiliary Tensile and Bulging of Light Metal Alloy
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Rolling Force Prediction System of Cold Rolling Process Based on BP Neural Network
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Use of Acoustic Energy in Sand Casting of Aluminium Alloys
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Study on Conventional Domed Bursting Disc Material and Burst Pressure Test
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Numerical Simulation of Stress-Strain of AZ31 Mg Alloy Profile during Warm Tension-Rotation Bending Process
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Pulse Current Auxiliary Tensile and Bulging of Light Metal Alloy

Abstract:

Pulse current effects during hot tensile process and superplastic forming process of AZ31 magnesium alloy and TA15 titanium alloy were investigated in this paper. The experimental results indicate that the current can produce polarity effect to coarse grain AZ31 magnesium alloy, but to fine grained TA15 titanium alloy, the polarity effect is not obvious. The impact of electron wind force can change the strength of material during tensile process and affect final shape of part, making the dome of AZ31 hemisphere part deviated from the axis to the side of positive pole during superplastic forming process. In addition, the impact of current depends on current density and dislocation density.