王卫滨, 宋文庆. 振动频率对超声辅助切削温度影响的仿真研究[J]. 南昌航空大学学报(自然科学版), 2015, 29(4): 30-34. DOI: 10.3969/j.issn.1001-4926.2015.04.006
引用本文: 王卫滨, 宋文庆. 振动频率对超声辅助切削温度影响的仿真研究[J]. 南昌航空大学学报(自然科学版), 2015, 29(4): 30-34. DOI: 10.3969/j.issn.1001-4926.2015.04.006
WANG Wei-bin, SONG Wen-qing. Effect of Vibration Frequency on Ultrasonically Assisted Cutting Temperature[J]. Journal of nanchang hangkong university(Natural science edition), 2015, 29(4): 30-34. DOI: 10.3969/j.issn.1001-4926.2015.04.006
Citation: WANG Wei-bin, SONG Wen-qing. Effect of Vibration Frequency on Ultrasonically Assisted Cutting Temperature[J]. Journal of nanchang hangkong university(Natural science edition), 2015, 29(4): 30-34. DOI: 10.3969/j.issn.1001-4926.2015.04.006

振动频率对超声辅助切削温度影响的仿真研究

Effect of Vibration Frequency on Ultrasonically Assisted Cutting Temperature

  • 摘要: 钛合金为难加工材料,被广泛应用于航天航天等领域,近年来,超声振动在钛合金切削加工方面得到广泛的运用。在实现断续切削的情况下(2πƒa>3Vc),运用AdevantEdge软件建立了反映温度场分布的超声振动车削有限元模型,并用该模型仿真研究了振动频率对超声切削温度影响的规律。研究表明:适当增大超声振动频率可降低加工接触率,实现断续切削,降低刀尖切削温度,增加刀具的使用寿命;在相同工艺参数条件下,存在一振动频率临界点,超过该频率将导致刀尖与切屑摩擦热增加速度大于刀具散热速度,致使刀具温度升高。

     

    Abstract: Titanium alloy is widely used in the field of aerospace and other fields. In recent years, ultrasonic vibration has been widely used in the machining of titanium alloy. In the realization of intermittent cutting(2πƒa>3Vc),the use of software AdevantEdge reflect the temperature field distribution of the ultrasonic vibration turning finite element model was established, and use the model to study the rule of vibration frequency to the ultrasonic cutting temperature.The results show that the appropriate increased frequency of ultrasonic vibration can reduce the contact machining rate and discontinuous cutting, reduce the cutting tool tip temperature, increase the service life of the cutting tool. Moreorer, under the same process parameters, there is a vibration frequency of the critical point, more than the frequency will lead to tip and cutting chip friction heat increase faster than the tool cooling speed, resulting in the tool temperature was increased.

     

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