罗海泉, 高延峰, 王顺钦. TC4合金径向超声振动铣削切削力特征分析[J]. 南昌航空大学学报(自然科学版), 2017, 31(4): 14-20,95. DOI: 10.3969/j.issn.1001-4926.2017.04.003
引用本文: 罗海泉, 高延峰, 王顺钦. TC4合金径向超声振动铣削切削力特征分析[J]. 南昌航空大学学报(自然科学版), 2017, 31(4): 14-20,95. DOI: 10.3969/j.issn.1001-4926.2017.04.003
LUO Hai-quan, GAO Yan-feng, WANG Shun-qin. Characteristics of Cutting Force in the Radial Ultrasonic Vibration Milling for TC4 Alloy[J]. Journal of nanchang hangkong university(Natural science edition), 2017, 31(4): 14-20,95. DOI: 10.3969/j.issn.1001-4926.2017.04.003
Citation: LUO Hai-quan, GAO Yan-feng, WANG Shun-qin. Characteristics of Cutting Force in the Radial Ultrasonic Vibration Milling for TC4 Alloy[J]. Journal of nanchang hangkong university(Natural science edition), 2017, 31(4): 14-20,95. DOI: 10.3969/j.issn.1001-4926.2017.04.003

TC4合金径向超声振动铣削切削力特征分析

Characteristics of Cutting Force in the Radial Ultrasonic Vibration Milling for TC4 Alloy

  • 摘要: 在设计的径向超声振动铣削实验平台上,对TC4合金径向超声振动铣削的切削力特征进行了研究。建立了径向超声振动铣刀刀尖运动轨迹数学模型,并通过仿真分析发现,在主轴转速一定的情况下,每齿进给量是影响刀刃和工件周期性分离的主要因素,随着进给量的增大,刀具与工件分离程度变小,直至不能分离。设计了以每齿进给量为变量的单因素切削实验,发现在满足刀刃和工件发生周期性分离的条件下,超声振动辅助铣削的切削力明显降低,且其高频波动也比普通铣削小。通过对切削力随进给量的变化规律研究发现,在刀屑分离的范围之内,随着进给量的增加,超声振动辅助铣削时的切削力增加相对缓慢。当进给量超过两倍振幅后,切削力增加比较明显。但与普通切削相比,超声振动时的切削力仍然有一定的降低。

     

    Abstract: A radial ultrasonic vibration device was developed to investigate the characteristics of cutting forces during ultrasonic vibration assisted milling. A mathematic model of tool tip motion during vibration assisted milling was built. Based on this model, it is found that the feed rate per tooth is the main factor to affect the periodical contact and separation between tool and workpiece. The cutting experiment results show that, under the condition of periodical contact and separate, the cutting forces during ultrasonic assisted milling is remarkable lower than that during conventional milling. During ultrasonic vibration assisted machining, with the increase of feed rate, under the condition of periodical contact and separate, the cutting forces slowly increase. However, when the feed rate more than the double of amplitude of ultrasonic vibration the cutting forces have a significant increase, but still less than that during conventional milling.

     

/

返回文章
返回