MODELING OF THRUST FORCE IN ULTRASONIC ASSISTED DRILLING OF DD6 SUPERALLOY

Xiaoxiang Zhu, Wenhu Wang, Ruisong Jiang, Yifeng Xiong, Xiaofen Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Nickel-based superalloy DD6 is characterized by high strength, high temperature resistance, which makes it an ideal material for manufacturing aircraft engines. Ultrasonic assisted drilling is an advanced machining method, which greatly improves the machining performance of difficult-to-machine materials. The drilling thrust force has an important effect on the hole surface quality, burr height and bit wear. Therefore, it is necessary to predict the thrust force of ultrasonic assisted drilling. However, there are few reports about the thrust force modeling of ultrasonic assisted micro hole drilling. A thrust force prediction model for ultrasonic assisted micro-drilling is presented in this paper. Based on the basic cutting principle, the dynamic cutting thickness, dynamic cutting speed and acoustic softening effect caused by ultrasonic vibration are considered in this model. The model was verified by the ultrasonic assisted drilling experiments with different spindle speeds, feed rates, amplitudes and frequencies. The maximum error and minimum error of the average thrust force are 10.5% and 2.3%, respectively.

Original languageEnglish
Title of host publicationAdvanced Manufacturing
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791885550
DOIs
StatePublished - 2021
EventASME 2021 International Mechanical Engineering Congress and Exposition, IMECE 2021 - Virtual, Online
Duration: 1 Nov 20215 Nov 2021

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume2A-2021

Conference

ConferenceASME 2021 International Mechanical Engineering Congress and Exposition, IMECE 2021
CityVirtual, Online
Period1/11/215/11/21

Keywords

  • Acoustic softening effect
  • DD6 superalloy
  • Dynamic cutting thickness
  • Thrust force model
  • Ultrasonic assisted drilling

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