Hot Forgeability and Die-forging Forming of Semi-continuous Casting AZ70 Magnesium Alloy
By carrying out the experiments of semi-continuous casting AZ70 Mg-alloy at different temperatures and various strain rates, such as tensile testing on Sintech20 tester and compressive testing on Gleeble1500D simulator, the plastic diagrams, the curves of deformation resistance and the relationship curves between deformation degree and mean grain sizes were determined respectively. And the possible hot forging process parameters were subsequently confirmed. Based on the above results and the present forging equipments and dies, conventional forging experiments for a projectile head shell directly utilizing semi-continuous casting AZ70 billet were performed on an oil hydraulic press with the capacity of 315t. The forged head shell possesses desired defect-free microstructure and mechanical properties with 30％ weight saving by comparison with Al-alloy one.
Semi-continuous casting AZ70 Mg-alloy Forgeability Die-forging
Shaokang GUAN Lihong Wu Jun LIU
School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450002, China
国际会议
郑州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）