Experimental study on quality of PCD tools machined by different electric discharge grinding processes

Li, G, Rahim, M, Ding, S, Sun, S and Mo, J 2016, 'Experimental study on quality of PCD tools machined by different electric discharge grinding processes', Cogent Engineering, vol. 3, no. 1, 1228234, pp. 1-12.


Document type: Journal Article
Collection: Journal Articles

Title Experimental study on quality of PCD tools machined by different electric discharge grinding processes
Author(s) Li, G
Rahim, M
Ding, S
Sun, S
Mo, J
Year 2016
Journal name Cogent Engineering
Volume number 3
Issue number 1
Article Number 1228234
Start page 1
End page 12
Total pages 12
Publisher Taylor and Francis
Abstract Polycrystalline diamond (PCD) is a promising tool material which is utilized to cut difficult-to-machine materials used in aerospace industry. Because of its ultra-hardness, electrical discharge grinding (EDG), a variation of electrical discharge machining, is often adopted to manufacture PCD tools to reduce manufacturing time. This paper investigates the quality of PCD inserts manufactured by two different EDG eroding methods: "2-step machining" and "3-step machining". Surface roughness and residual stress were investigated after EDG process. An orthogonal cutting experiment was conducted to test the performance of each PCD insert. PCD tools machined with the two methods do not have significant difference in surface roughness. The residual stress status changed from compressive to tensile after EDG process. Also, after being eroded by 3-step EDG process, there was an over 30% declination of residual stress compared with 2-step machining. The results of the orthogonal cutting test showed that the wear amount and the thrust force of PCD inserts machined by 3-step EDG were smaller for the CTB010 insert and the CTX002 insert. In contrast, the CTM302 machined by 3-step EDG did not show obvious improvement in tool wear resistance during the cutting tests.
Subject Machining
Keyword(s) Polycrystalline diamond
Electrical discharged machining
Surface roughness
Residual stress
Thrust force
Wear amount
DOI - identifier 10.1080/23311916.2016.1228234
Copyright notice © 2016 The Author(s). This open access article is distributed under a Creative Commons Attribution (CC-BY) 4.0 license.
ISSN 2331-1916
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 1 times in Scopus Article | Citations
Altmetric details:
Access Statistics: 112 Abstract Views  -  Detailed Statistics
Created: Wed, 30 Nov 2016, 07:55:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us