Microstructured surface generation and cutting force prediction of pure titanium TA2

Titanium and its alloys have widespread applications in aerospace and medical fields due to their outstanding mechanical properties and corrosion resistance. However, very limited attention has been focused on machining the microstructure on their surface and the cutting force prediction during mach...

Full description

Saved in:
Bibliographic Details
Published in:Precision engineering 2022-05, Vol.75, p.101-110
Main Authors: Du, Hanheng, To, Suet, Yin, Tengfei, Zhu, Zhiwei
Format: Article
Language:English
Subjects:
Cutting force
Microstructure
Surface texturing
Titanium
Ultraprecision diamond machining
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Titanium and its alloys have widespread applications in aerospace and medical fields due to their outstanding mechanical properties and corrosion resistance. However, very limited attention has been focused on machining the microstructure on their surface and the cutting force prediction during machining. Motivated by this, this study used the ultraprecision diamond surface texturing (UDST) process to generate microstructure on the commercially pure titanium TA2 and established a cutting force prediction model. Firstly, the two special characteristics of UDST are systematically investigated by the finite element simulation and the vibration trajectory analysis. And as a core component of the UDST process, a two-degree-of-freedom vibration generator is presented. Considering the periodical vibration motion, tool geometry, and material properties, a practicable cutting force model is next developed for predicting the dynamic cutting force. Finally, two types of unique microstructures are successfully fabricated on the TA2 surface. Experimental results show that the proposed cutting force model agrees well with the measured results, validating its effectiveness. [Display omitted] •Two typical characteristics of the ultraprecision diamond surface texturing are illustrated.•The instantaneous shear angle and instantaneous cutting area are mathematically modeled.•The practicable cutting force prediction model is developed.•The shuttle-shaped and bamboo-shaped microstructures are successfully textured on the pure titanium TA2 surface.•The effectiveness and accuracy of the developed prediction model are validated by two groups of experiments.
ISSN:0141-6359
1873-2372
DOI:10.1016/j.precisioneng.2022.02.004