Abstract:
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The coining roll's pressing process of continuous extrusion for wide copper strip was simulated by software DEFORM-3D.The distribution of the billet's effective strain,effective stress,temperature and extrusion wheel's torque were obtained.The result shows that at the same reduction,the billet's effective strain and effective stress gradually increase during pressing process.When the metal is extruded in the extrusion wheel groove and contacted the abutment,the billet's effective strain is unchanged,but the effective stress dramatically decreases.When the metal flows into cavity,the billet's effective strain greatly increases.With the reduction increased in the continuous extrusion forming,the billet's effective strain,effective stress,temperature and extrusion wheel's torque all increase.From analysis of the point tracking and extrusion wheel torque,it is found that when the coining roll reduction is 6 mm,the wide copper strip is suitable for continuous extrusion.
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Funds:
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国家自然科学基金资助项目(50635020)
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AuthorIntro:
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Reference:
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