振动攻丝最大扭矩的计算模型

 振动攻丝工艺参数的选择对于振动攻丝的工艺效果的好坏具有重要影响。目前一般通过大量单因素实验来获取合理的工艺参数。这种方法周期长、成本高,严重限制了该技术的应用。因此研究振动攻丝工艺参数的简易确定技术极为必要。作者提出了一种新的描述回弹量和重复切削次数的关系式,并在此基础上利用重复切削理论建立了振动攻丝最大扭矩的一般计算模型。通过数值仿真验证了该模型与试验结果的一致性。该模型的建立为简化工艺参数的获取过程提供了一种有效途径。

MODELING OF MAXIMUM TORQUE IN VIBRATION TAPPING

The selection of vibration tapping parameters takes a very important role in vibration tapping, which is generally obtained through a single factor experiment. This method takes much time and is much costly, which seriously cumbers the application of vibration tapping technology. It is very necessary to find some simpler method to solve the problem. In this paper, a new formula was proposed to describe the relation between cutting number of times (CNT) and rebound thickness (RT). Based on the formula and repeat\|cutting theory (RCT), a mathematical model was established to calculate the maximum tapping torque in vibration tapping. A simulation was carried out to verify the model, which proved to have good match with the experiment result. The model can be used to improve and simplify the selection of vibration tapping parameters.