镁合金管材挤压工艺及组织性能研究

Study on technology and microstructure Perfor-mance in tube extrusion of Mg Alloy

对镁合金管材挤压成形进行了工艺实验研究,确定了其成形工艺参数,分析了镁合金管材挤压成形时变形力的变化规律和组织性能变化。研究结果表明,镁合金管材挤压成形时必须严格控制坯料温度、模具预热温度、润滑剂、挤压速度、挤压比等工艺技术参数。以上工艺参数对挤压力均有不同程度的影响。

The technological parameters of tube extrusion of Mg alloy,such as slug temperature,tools temperature,choice of lubricant,ratio of extrusion,and extrusion speed,have been determined by experiment.It is analyzed tbat de-forming force and microstructure performance of Mg alloy tube extrused.Technology parameters such as deformation tempefature,tool temperature,ratio of extrusion,lubricant and deformation velocity should be controled strictly.Each of the above mentioned technological parameters has its dif ferent influence on extrusion force.