Drill Bit Types and Features

2019 ◽  
pp. 37-72
Keyword(s):  
Drill Bit

Preparation of cross-sectional samples for near-surface TEM studies

1987 ◽  
Vol 45 ◽  
pp. 380-381
Author(s):  
R.C. Dickenson ◽  
K.R. Lawless
Keyword(s):  
Standard Sample ◽  
Surface Region ◽  
Specimen Preparation ◽  
Thick Sheet ◽  
Drill Bit ◽  
Sample Holder ◽  
Metal Interface ◽  
Cross Sectional ◽  
Near Surface ◽  
Cold Worked

In thermal oxidation studies, the structure of the oxide-metal interface and the near-surface region is of great importance. A technique has been developed for constructing cross-sectional samples of oxidized aluminum alloys, which reveal these regions. The specimen preparation procedure is as follows: An ultra-sonic drill is used to cut a 3mm diameter disc from a 1.0mm thick sheet of the material. The disc is mounted on a brass block with low-melting wax, and a 1.0mm hole is drilled in the disc using a #60 drill bit. The drill is positioned so that the edge of the hole is tangent to the center of the disc (Fig. 1) . The disc is removed from the mount and cleaned with acetone to remove any traces of wax. To remove the cold-worked layer from the surface of the hole, the disc is placed in a standard sample holder for a Tenupol electropolisher so that the hole is in the center of the area to be polished.

Reservoir Characterization Begins at First Contact with the Drill Bit

2011 ◽  
Author(s):  
Sara Shayegi ◽  
C. Shah Kabir ◽  
Flemming If ◽  
Soren Christiansen ◽  
Ken Kosco ◽  
...  
Keyword(s):  
Reservoir Characterization ◽  
Drill Bit ◽  
First Contact

In-House Drilling Simulator and Bicenter Drill-Bit Technology Set a New Hardware Benchmark for Separation Between the Bit and Gamma Ray Adapter

2019 ◽  
Author(s):  
Sajjad Hussain ◽  
Alberto Caycedo ◽  
Simon Downie ◽  
Karam Sulaiman Dhaher
Keyword(s):  
Gamma Ray ◽  
Drill Bit

IMPROVEMENT OF THE SIDE DIAGRAM OF CLEANING OF ROLLING CUTTER DRILL BIT BY USING GASEOUS AGENT

2019 ◽  
pp. 36-39
Author(s):  
D.Yu. Serikov ◽  
◽  
O.G. Blinkov ◽  
V.Yu. Bliznyukov ◽  
Keyword(s):  
Drill Bit

Development of a Drill Bit for CFRP/Aluminum-Alloy Stack: To Improve Flexibility, Economical Efficiency and Work Environment

2013 ◽  
Author(s):  
Shuhei Segawa ◽  
Junich Tamura ◽  
Satoshi Suzuki ◽  
Hisao Oka ◽  
Kiichi Meguro ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Work Environment ◽  
Drill Bit ◽  
Economical Efficiency
Sign in / Sign up

Export Citation Format

Share Document