Research on Cutting Performance of GH4169 in Ultrasonic Elliptical Vibration Turning Based on ABAQUS

doi:10.3969/j.issn.1672-6952.2021.06.013

Abstract

Abstract:

In the process of processing GH4169 nickel?based superalloy, serious work hardening would occur, as well as difficult machining problems caused by excessive cutting force. The finite element model of two?dimensional orthogonal turning was established by ABAQUS software. The influence of cutting speed and amplitude on cutting force and the change of tool path of GH4169 ultrasonic elliptical vibration turning were analyzed. The results were compared with those of ordinary turning process. The results show that the cutting process parameters in the ultrasonic elliptical vibration turning of nickel?based superalloys have a significant effect on the cutting force. Choosing reasonable process parameters can effectively reduce the cutting force and improve the machining quality.

Key words: Ultrasonic elliptical vibration turning, GH4169, Cutting speed, Cutting force, Finite element analysis

摘要：

在GH4169镍基高温合金加工过程中，会产生严重的加工硬化现象以及因切削力过大等原因导致的难加工问题。利用ABAQUS软件建立二维正交车削有限元模型，分析GH4169超声椭圆振动车削的切削速度和振幅对切削力的影响，以及其刀具轨迹的变化情况，并与普通车削过程进行了对比分析。结果表明，在超声椭圆振动车削镍基高温合金中，切削工艺参数对切削力影响显著，选择合理的工艺参数可以有效地降低切削力，改善加工质量。

关键词: 超声椭圆振动车削, GH4169, 切削速度, 切削力, 有限元分析

CLC Number:

TG506.5

Zhengyi Wei, Xingjun Gao, Zilong Deng, Lin Fan. Research on Cutting Performance of GH4169 in Ultrasonic Elliptical Vibration Turning Based on ABAQUS[J]. Journal of Liaoning Petrochemical University, 2021, 41(6): 67-71.

魏正义, 高兴军, 邓子龙, 凡林. 基于ABAQUS的超声椭圆振动车削GH4169的切削性能研究[J]. 辽宁石油化工大学学报, 2021, 41(6): 67-71.

Figures/Tables 8

References 19

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损伤参数	数值	损伤参数	数值
A/MPa	450	D₁	－0.239
B/MPa	1 700	D₂	0.456
C	0.017	D₃	0.300
n	0.65	D₄	0.070
m	1.3	D₅	2.500

损伤参数	数值	损伤参数	数值
A/MPa	450	D₁	－0.239
B/MPa	1 700	D₂	0.456
C	0.017	D₃	0.300
n	0.65	D₄	0.070
m	1.3	D₅	2.500

材料属性	数值
杨氏模量/MPa	206 000
泊松比	0.3
密度/（kg·m^－3）	8 200
热传导率/（W·m^－1·℃^－1）	11.4
比热容/（J·kg^－1·℃^－1）	435
融化温度/℃	1 570
热膨胀系数×10⁶/℃^－1	11.2

材料属性	数值
杨氏模量/MPa	206 000
泊松比	0.3
密度/（kg·m^－3）	8 200
热传导率/（W·m^－1·℃^－1）	11.4
比热容/（J·kg^－1·℃^－1）	435
融化温度/℃	1 570
热膨胀系数×10⁶/℃^－1	11.2

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