Development of optimization control system in ultrasonic vibration cutting (Construction of prediction system of chatter vibration and estimation system of surface accuracy)

超声振动切削优化控制系统开发（颤振预测系统和表面精度估计系统构建）

• 批准号: 14350116
• 负责人: SATO Keijin
• 金额: $ 9.6万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350116/
• 关键词: Ultrasonic vibration cutting; Non-linear oscillation; Mechanical vibration; 不安定現象; 難削材加工

The following conclusions are obtained :1.The study on the unstable phenomena in ultrasonic vibration cutting・This result suggests that there is a possibility that the vibration tool's movement is obstructed by frictional resistance between the tool and work, and so on.・This research confirms the occurrence of strange phenomena in ultrasonic vibration cutting system by experiments when the tool amplitude varied, and characterizes the strange phenomena by FTT analysis.2.The study on optimum cutting condition in ultrasonic vibration cutting・A new cutting model, which contains a vibration cutting process, is proposed. The simulation results are in good agreement with the measurement values and it is found that the proposed model accurately predicts the work displacement amplitudes of vibration cutting.・The experimental results showed that vibration cutting enables a larger tool nose radius to be used than conventional cutting. In the case of nickelbase alloy Incone1600, the allowable tool nose radius in vibration cutting was 0.2mm, while one in conventional cutting was 0.02mm. Also, it was demonstrated that chatter vibration is caused by a larger than tool nose radius of 0.2 mm in vibration cutting.3.The study on dynamic behavior in ultrasonic vibration cutting・This result suggests that there is possibility that vibration cutting will process on the condition of exceeding critical cutting speed. This paper suggests that there is possibility of speeding up the cutting speed in the ultrasonic vibration cutting system.4.The study on workpiece behavior in ultrasonic vibration cutting using control of spindle revolution speeds in NC lathe・This research is experiments of chatter suppression. A comparison was made between a gradual increase in cutting speed and a gradual decrease in cutting speed, and it was observed that there is difference in workpiece behavior in ultrasonic vibration cutting.

1.对超声振动切削中的不稳定现象进行了研究。研究结果表明，振动刀具的运动可能受到刀具与工件之间的摩擦阻力等因素的阻碍。通过实验证实了超声振动切削系统在刀具振幅变化时会出现奇异现象，并通过FTT分析对奇异现象进行了表征。2.超声振动切削最佳切削条件的研究。仿真结果与实测值吻合较好，表明该模型能准确预测振动切削的工作位移幅值。实验结果表明，振动切削比常规切削能使用更大的刀尖半径。对于镍基合金Incone1600，振动切削时允许刀尖圆弧半径为0.2mm，而常规切削时允许刀尖圆弧半径为0.02mm。另外，还证明了振动切削中的颤振是由刀尖半径大于0.2mm引起的。3.超声振动切削的动力学行为研究。本文提出了在超声振动切削系统中提高切削速度的可能性。4.数控车床主轴转速控制超声振动切削工件行为的研究。在切削速度逐渐增大和切削速度逐渐减小之间进行了比较，并且观察到在超声振动切削中工件行为存在差异。

项目成果

Keijin SATO: "The Effect of Tool Nose Radius in Ultrasonic Vibration Cutting of Hard Metal"International Journal of Machine Tools & Manufacture. 2003・43. 1375-1382 (2003)

Keijin SATO：“刀尖半径对硬质合金超声波振动切削的影响”《国际机床与制造杂志》2003・43（2003）。

重複係数を考慮した動的切削モデルについて

关于考虑重叠系数的动态切削模型

• 发表时间: 2002
• 期刊: 日本機械学会関東支部ブロック合同講演会 講演論文集 2002-9
• 作者: Yabe;T.;Phipps;C.R.;Aoki;K.;Yamaguchi;M.;Nakagawa;R.;Baasandash;C.;Ogata;Y.;Shiho;M.;Inoue;G.;Onda;M.;Horioka;K.;Kajiwara;I.;Yoshida;K.;佐藤 啓仁
• 通讯作者: 佐藤 啓仁

佐藤 啓仁: "切削モデルに生じる雑音誘起秩序"第52回理論応用力学講演会講演論文集. 2003-1. 369-370 (2003)

Hirohito Sato：“切削模型中产生的噪声引起的顺序”第 52 届理论与应用力学会议论文集 2003-1（2003 年）。

Keijin SATO: "Influence of Random Noise for a Cutting Model"Abstracts of The 34th ISCIE International Symposium on Stochastic Systems Theory and Its Applications. 2002-10. 62-63 (2002)

Keijin SATO：“Influence of Random Noise for a Cutting Model”第 34 届 ISCIE 国际随机系统理论及其应用研讨会摘要。

佐藤 啓仁: "重複係数を考慮した動的切削モデルについて"日本機械学会関東支部ブロック合同講演会 講演論文集. 2002-9. 241-242 (2002)

Hirohito Sato：“关于考虑重叠系数的动态切削模型”日本机械工程师学会关东分会联合讲座会议记录2002-9（2002）。