Experimental and numerical study of ultrasonically-assisted drilling

被引：61

作者：

Lotfi, Mohammad ^{[1
]}

Amini, Saeid ^{[1
]}

机构：

[1] Univ Kashan, Dept Mfg, Fac Mech Engn, Kashan, Iran

来源：

ULTRASONICS | 2017年 / 75卷

关键词：

Drilling; Ultrasonic; FE simulation; BUE; Force; Chip curling; FINITE-ELEMENT; SIMULATION; FORCES; MODEL; FLOW;

D O I：

10.1016/j.ultras.2016.11.009

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this study, 3D finite element simulation of ultrasonically-assisted drilling is carried out to analyze the effect of ultrasonic vibrations on common difficulties existed in conventional drilling. Influence of harmonic movement of drill bit on the formation of built-up edge is experimentally evaluated and also discussed by investigation of heat generation on the tool faces in simulation. At the end, it was revealed that intermittent movement of drill bit in vibration method causes the total time of heat transfer between workpiece and drill bit to be reduced resulting lower built-up edge formation compared to conventional drilling. Moreover, linear motion of cutting tool in the feed direction results in the increase of chip strain and consequently damage value which causes to generation of broken chips. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：185 / 193

页数：9

共 41 条

[11] An optimization technique on ultrasonic and cutting parameters for drilling and deep drilling of nickel-based high-strength Inconel 738LC superalloy with deeper and higher hole quality [J].