扁形钛铜复合棒挤压模具设计与应用

对长宽比较大的扁形截面钛铜复合棒的挤压模具进行了设计研究。通过合理选材,并选择使挤压力最小的模具模腔轮廓曲线和半模角,改变模孔工作带的几何形状与尺寸,选择适当的挤压速度等,优化设计制备出扁形钛铜复合棒专用挤压模具。增加工作带长度可以增大摩擦阻力,使向该处流动的供应体的流动静压力增大,迫使金属向阻力小的方向流动,从而使型材整个断面上金属流量更加均匀。挤压实验结果表明,合理的模具设计对挤压材的挤压过程和挤压制品质量有重要影响,锥形模具更适合于扁形钛铜复合棒的挤压。解决了科研生产实际对大的长宽比扁型钛铜复合棒的需求。

Design and Application of Extrusion Die for Titanium Copper Flat-Like Cladding Bar

Extrusion die with big ratio of length to width for titanium-copper flat-like cladding bar was researched.By choosing the appropriate material,adjusting working cincture size and appropriate extrusion speed,the extrusion die was optimized.The results show that a suitable die has important effects on the extrusion process and the quality of the products.Taper die,which satisfies the requirement for the titanium-copper flat-like cladding bar with big ratio of length to width,has been proved to be better.