The Performance of Diamond-Like Carbon Coated Drills in Thermally Assisted Drilling of Ti-6Al-4V

被引：21

作者：

Bhowmick, S. ^{[1
]}

Alpas, A. T. ^{[1
]}

机构：

[1] Univ Windsor, Windsor, ON N9B 3P4, Canada

来源：

JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME | 2013年 / 135卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

titanium alloys; Ti-6Al-4V; diamond-like carbon; thermally assisted machining; drilling; tool coatings; adhesion; tribology; TEMPERATURE TRIBOLOGICAL BEHAVIOR; MACHINING TITANIUM-ALLOYS; CHIP FORMATION; RAMAN-SPECTROSCOPY; SURFACE INTEGRITY; WEAR MECHANISM; DLC COATINGS; TOOL LIFE; ALUMINUM; MACHINABILITY;

D O I：

10.1115/1.4025739

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Drilling performances of diamond-like carbon coatings incorporating W (W-DLC) deposited on high-speed steel tools were evaluated when drilling Ti-6Al-4V at 25 degrees C and under thermally assisted machining (TAM) conditions at 400 degrees C. Dry drilling using W-DLC coated drills caused immediate tool failure as a result of titanium adhesion. The tool lives improved for TAM drilling using W-DLC when the Ti-6Al-4V was placed (with dry surface) in a cooling bath at -80 degrees C and resulted in low and uniform drilling torques as well as good surface finish. The low coefficient of friction (COF) of W-DLC against Ti-6Al-4V observed under TAM conditions was attributed to the formation of W oxide layers at the tool surface, as determined by Raman spectroscopy. Introducing a cooling bath was necessary in order to restrict the temperature rise in the workpiece that caused rapid tool wear above 500 degrees C during drilling operations and also to prevent adhesion with minimal built-up edge (BUE) formation during drilling. The TAM performance of W-DLC coated drills was shown to be similar to that of WC-Co drills used in conventional flooded drilling.

引用

页数：15

共 50 条

[41] Adhesion studies of diamond-like carbon films deposited on Ti6Al4V substrate with a silicon interlayer [J].

Bonetti, L. F. ;

Capote, G. ;

Santos, L. V. ;

Corat, E. J. ;

Trava-Airoldi, V. J. .

THIN SOLID FILMS, 2006, 515 (01) :375-379

[42] A novel method for improving drilling performance of CFRP/Ti6AL4V stacked materials [J].

Yasar, Nafiz ;

Korkmaz, Mehmet Erdi ;

Gupta, Munish Kumar ;

Boy, Mehmet ;

Gunay, Mustafa .

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2021, 117 (1-2) :653-673

[43] Elasto-plastic deformation and fracture mechanism of a diamond-like carbon film deposited on a Ti-6Al-4V substrate in nano-scratch test [J].

Huang, LY ;

Lu, H ;

Xu, KW .

THIN SOLID FILMS, 2004, 466 (1-2) :175-182

[44] Drilling burr formation in titanium alloy, Ti-6Al-4V [J].

Dornfeld, DA ;

Kim, JS ;

Dechow, H ;

Hewson, J ;

Chen, LJ .

CIRP ANNALS 1999 - MANUFACTURING TECHNOLOGY, 1999, :73-76

[45] EFFECT OF CRYOGENIC TREATMENT APPLIED TO M42 HSS DRILLS ON THE MACHINABILITY OF Ti-6Al-4V ALLOY [J].

Kivak, Turgay ;

Seker, Ulvi .

MATERIALI IN TEHNOLOGIJE, 2015, 49 (06) :949-956

[46] Comparative study on helical milling and drilling of Ti-6Al-4V [J].

Qin, X.D. ;

Sun, X.T. ;

Wang, Q. ;

Chen, S.M. ;

Li, H. .

Key Engineering Materials, 2012, 499 :200-204

[47] Optimisation and tool life study in drilling of titanium (Ti-6Al-4V) alloy [J].

Prabukarthi, A. (prabukarthi.arumugam@gmail.com), 1600, Inderscience Enterprises Ltd., 29, route de Pre-Bois, Case Postale 856, CH-1215 Geneva 15, CH-1215, Switzerland (13) :138-157

[48] Micro-drilling of Ti-6Al-4V alloy: The effects of cooling/lubricating [J].