Drills as Tools for Media Penetration and Sampling

Yoseph Bar-Cohen and Kris Zacny

  1. 1 Introduction and Historical Perspective 1
  2. 2 Methods of Drilling and Penetration of Objects 9
  3. 2.1 Mechanical Techniques 9
  4. 2.2 Thermal Techniques 12
  5. 2.3 Chemical Techniques 13
  6. 3 Types of Mechanical Drills 14
  7. 3.1 Rotary Drill 14
  8. 3.2 Hammer Drill 15
  9. 3.3 Rotary-Hammer Drill 15
  10. 4 Bits - the End-Effector of Drills 15
  11. 4.1 Twist Drill Bits 15
  12. 4.2 Gun Drill 16
  13. 4.3 Centering and Spotting Drill Bits 17
  14. 4.4 Material Makeup of Bits 18
  15. 5 Application of Drilling Techniques 19
  16. 5.1 Geological Studies and Search for Resources 19
  17. 5.2 Mining and Tunneling 20
  18. 5.3 Petroleum and Gas Drilling and Exploration 21
  19. 5.4 Ocean and Seafloor Drilling 23
  20. 5.5 Planetary Drilling and Sampling 23
  21. 5.6 Ice Drilling 25
  22. 5.7 Dental Drills 25
  23. 6 Conclusion 27 References 28
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