超声椭圆振动切削钛合金切削力特性研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (9) : 208-215.

论文

超声椭圆振动切削钛合金切削力特性研究

童景琳，卫官

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Characteristics of cutting force during titanium alloy processed with UEVC

TONG Jinglin, WEI Guan

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文章历史 +

摘要

本文利用超声椭圆振动切削（UEVC）对TC4钛合金切削力特性进行了研究。基于ABAQUS力-热耦合模型分析了超声椭圆振动切削钛合金的瞬态切削过程，模拟在不同切深和切削速度下的瞬态切削情况，提取和对比普通切削（CC）和超声椭圆振动切削的主切削力,进而进行数据处理，分析两者主切削力对比情况和平均主切削力之差的变化。研究分析表明:在椭圆振动切削下，切削力减小比率随着切深的增加而减小,随着切削速度的增大而增大。最后进行试验验证，实验结论与仿真结果一致。本文对超声振动切削难加工材料钛合金时切削用量的选择提供了参考。

Abstract

This article uses a processing method of ultrasonic elliptical vibration cutting (UEVC) for TC4 titanium alloy . The present work is a comprehensive study involving 2D FE transient simulation of UEVC in ABAQUS of force - thermal coupling analysis cutting process of titanium alloy and experimental study. The transient cutting simulations are under different cutting depth and cutting speed of. The work extracts and contrasts the main cutting force from the process of conventional cutting(CC) and the ultrasonic elliptical vibration cutting(UEVC). Then the data processing is analyzed and study the difference average main cutting force between CC and UEVC .The research and analysis show that the ratio of cutting forces were decreased with the increased of cutting depth. The ratio of cutting forces were increased with the increased of cutting speed. Finally, researchers carried out specific test to verify this change rule .To the “difficult-to-cut” material--- titanium alloy ,this article provides a reference for the choice of cutting amount in actual machining.

Key words

UEVC / titanium alloy / finite element simulation / cutting forces / cutting amount

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童景琳，卫官. 超声椭圆振动切削钛合金切削力特性研究[J]. 振动与冲击, 2019, 38(9): 208-215

TONG Jinglin, WEI Guan. Characteristics of cutting force during titanium alloy processed with UEVC[J]. Journal of Vibration and Shock, 2019, 38(9): 208-215

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