Numerical Analysis on The Key Technology in Extrusion Tapping of Internal Thread
This paper introduces the principle and characteristic of extrusion tapping of internal thread, presents the simplified mechanical model of extrusion tapping firstly.Then generalizes the key technology of extrusion tapping and their influencing law on tapping torque and thread forming quality, such as extrusion tap type, lead hole diameter, tapping speed and friction.Finally, numerical analysis on the key technology of extrusion tapping are conducted based on DEF0RM-3D, the results show that the effect of lead hole diameter and friction on tapping torque are obvious, the effect of extrusion tap type and tapping speed on tapping torque are next and this effect degree is related to the stressstrain relation of workpiece material under different strain-rate closely.These researches will contribute to the right selection of workpiece material, extrusion tap type, lead hole diameter, tapping speed and lubrication of extrusion tapping of internal thread in practical manufacture.
Numerical analysis Key technology Extrusion tapping Internal thread
Yongyi Li Shengdun Zhao
Research Institute of Tool & Die Technology and Metal Forming,Xian Jiaotong University,Xian,China(710049)
国际会议
厦门
英文
436-441
2011-07-08（万方平台首次上网日期，不代表论文的发表时间）