Drilling Technology: Fundamentals and Recent Advances
Drilling Technology: Fundamentals and Recent Advances

Drilling Technology: Fundamentals and Recent Advances

by J. Paulo Davim (Editor)

Hardcover

$160.99
View All Available Formats & Editions
Usually ships within 6 days

Product Details

ISBN-13: 9783110478631
Publisher: De Gruyter
Publication date: 10/22/2018
Series: Advanced Mechanical Engineering Series
Pages: 205
Product dimensions: 6.69(w) x 9.45(h) x (d)
Age Range: 18 Years

About the Author

J. Paulo Davim, University of Aveiro, Aveiro, Portugal.

Table of Contents

Preface v

About the Editor vii

List of contributing authors xiii

1 Efficient drilling of high-silicon aluminum alloys Viktor P. Astakhov Swapnil Patel 1

1.1 Introduction 1

1.2 Short analysis of the known studies 2

1.3 Urgent need for high-efficiency drilling and constraints 3

1.3.1 The rising need for innovation 3

1.3.2 Major constraints on high-penetration rate 4

1.4 First level of the constraints analysis 5

1.5 Second level of the analysis of constraints: work-material specific level 9

1.5.1 General information about HSAA 9

1.5.2 Analysis of the chemical composition 10

1.5.3 Analysis of the mechanical and physical properties 19

1.6 Casting defects affecting drilling 22

1.6.1 Porosity 22

1.6.2 Sludge 24

1.6.3 Other casting defects 26

1.7 Advanced design of PCD drills for HPR drilling of HSAA 28

1.7.1 Problems with the existing designs 28

1.7.2 Cross-PCD drill design and implementation practice 30

References 35

2 Deep hole gun drilling of nickel-based superalloys Keng Soon Woon Guan Leong Tnay Swee Hock Yeo 37

2.1 Introduction: background and definition 37

2.2 Gun drill design 39

2.2.1 Nose grind contour 40

2.2.2 Coolant hole 41

2.2.3 Bearing pads 42

2.3 Process mechanics 43

2.3.1 Cutting force 44

2.3.2 Drill deflection 46

2.3.3 Wall deformation 47

2.3.4 Process kinematics 48

2.3.5 A case study 49

2.4 Tool degradation 51

2.4.1 General wear 52

2.4.2 Thermal-mechanical damage 53

2.4.3 Notching 53

2.4.4 Edge flaking 56

2.5 Coolant application 59

2.5.1 Coolant transport passage 59

2.5.2 Nose grind contour effects 61

2.5.3 Coolant hole configuration effects 61

2.5.4 Shoulder dub-off angle effects 62

2.5.5 Optimized design 63

2.6 Pilot hole drilling 65

2.6.1 Engagement performance 65

2.6.2 Engagement time 66

2.6.3 A case study 66

2.7 Gun drill re-sharpening 71

2.7.1 Manual grinding 72

2.7.2 Re-sharpening accuracy 72

2.7.3 Tool failure 73

2.7.4 Clearance regeneration 74

2.8 Cutting edge preparation 77

2.8.1 Problems with mechanical-based processes 78

2.8.2 Common abrasive tools 79

2.8.3 Soft grinding wheel 81

2.8.4 Results and improvement 83

2.8.5 Case study 84

2.9 Summary and outlook 85

References 85

3 A new model pertaining to highspeed drilling of titanium alloy (Ti-6Al-4V) Krishnaraj Vijayan Simin Nasseri Vitale Kyle Castellano Herve Sobtaguim Joshua Hilderbrand Hari Chealvan 89

3.1 Introduction 89

3.2 Experimental conditions 91

3.3 Governing equations 93

3.4 Experimental results and modeling 94

3.4.1 Uncut chip thickness analysis 94

3.4.2 Torque analysis 96

3.4.3 Thrust force analysis 100

3.4.4 Specific cutting energy analysis 102

3.5 Conclusions and discussions 104

References 107

4 Drilling of composite materials: methods and tools J. Babu Lijo Paul J. Paulo Davim 109

4.1 Introduction 110

4.2 Drilling processes 111

4.2.1 Conventional drilling 111

4.2.2 Grinding drilling 112

4.2.3 High-speed drilling 112

4.2.4 Nonconventional drilling processes 112

4.2.4.1 Ultrasonic machining 113

4.2.4.2 Ultrasonic Vibration-assisted machining 114

4.2.4.3 Laser machining 114

4.2.4.4 Electric discharge machining 115

4.2.4.5 Electrochemical discharge machining 115

4.2.4.6 Water-jet machining 116

4.3 Drill bit classification 116

4.3.1 Twist drill 117

4.3.2 Candlestick drill 118

4.3.3 Saw drill 119

4.3.4 Core- drill 119

4.3.5 Step drill 119

4.3.6 Core-centered drill 119

4.3.7 Core-candlestick drill 119

4.3.8 Core-saw drill 120

4.3.9 Brad drill 120

4.3.10 Reamer drill 120

4.3.11 Special step core drill 120

4.4 Drill bit materials 121

4.4.1 Carbide tools 121

4.4.2 Diamond-coated drill 121

4.4.3 Polycrystalline diamond (PCD) 122

4.5 Drilling defects 122

4.5.1 Delamination and its mechanisms 122

4.5.1.1 Measurement of delamination 123

4.5.1.2 Assessment of Delamination 124

4.5.1.3 Thrust force and its influence on delamination 125

4.5.1.4 Effect of cutting conditions on thrust force 127

4.5.1.5 Methods to suppress delamination 131

4.5.2 Geometrical damages in drilling 136

4.5.2.1 Surface finish 136

4.5.2.2 Hole size error 137

4.5.2.3 Cylindricity/circularity error 138

4.5.3 Thermal damages in drilling 138

4.6 Tool wear 141

4.7 Conclusions 143

References 144

5 Challenges of machining natural fiber-reinforced composites: A review Akshay Hejjaji Redouane Zitoune Ameur Mohamed Fayçal Bougherara Habiba 149

5.1 Introduction 149

5.2 Machining of natural fiber composites 152

5.2.1 Drilling 152

5.3 Remarks 159

References 159

6 Analysis and optimization of hole quality parameters in cenosphere-multiwall carbon nanotube hybrid composites drilling using artificial neural network and gravitational search technique V. N. Gaitonde Shashikant Anand Lakkundi S. R. Karnik A. S. Deshpande J. Paulo Davim 161

6.1 Introduction 161

6.2 Artificial neural network modeling 163

6.3 Gravitational search optimization 164

6.4 Experimental details 167

6.4.1 Preparation of cenosphere-MWCNT-epoxy specimens 167

6.4.2 Drilling experimentation and hole quality measurement 168

6.5 Results and discussion 173

6.5.1 ANN models for hole quality parameters 173

6.5.1.1 Circularity error analysis 174

6.5.1.2 Surface roughness analysis 178

6.5.1.3 Delamination analysis 178

6.5.2 GS optimization for hole quality parameters 179

6.6 Conclusions 184

References 185

Index 189

Customer Reviews

Most Helpful Customer Reviews

See All Customer Reviews