![](https://pma.metalformedu.org/pluginfile.php/23464/course/overviewfiles/AER-4023.jpg)
To drill a quality hole in titanium material, you need to understand titanium materials and have good basic drilling knowledge and skills.
Learning Objectives
- List some qualities of titanium material
- Understand the hazards of working with titanium materials
- Define a quality hole
- Understand how to drill a quality hole in titanium material
- Recognize some common hole defects
![](https://pma.metalformedu.org/pluginfile.php/23472/course/overviewfiles/AER-4024.jpg)
Before holes are drilled in an assembly, their locations must be marked.
Learning Objectives
- Recognize hole location information on an engineering drawing
- Explain where to find the tools and other supplies needed to create an assembly
- Prepare the surface of an assembly for mark up
- Properly measure and mark hole locations in the assembly
![](https://pma.metalformedu.org/pluginfile.php/23480/course/overviewfiles/AER-4025.jpg)
In this course, you will be shown how to create the assembly and drill pilot holes.
Learning Objectives
- Create an assembly
- Properly secure the assembly in the vise
- Install a pilot bit in a drill motor
- Drill pilot holes into the assembly
![](https://pma.metalformedu.org/pluginfile.php/23488/course/overviewfiles/AER-4026.jpg)
After the pilot holes are drilled in rows JD1, and JD3 through JD8, drill the pilot holes in row JD2 and then enlarge them.
Learning Objectives
- Use a ninety-degree drill motor to drill the pilot holes in row JD2
- Use a ninety-degree drill motor and two separate single step drill bits to enlarge the pilot holes to size
![](https://pma.metalformedu.org/pluginfile.php/23496/course/overviewfiles/AER-4027.jpg)
The next row of holes to enlarge is row JD7.
Learning Objectives
- Enlarge the holes in row JD7
![](https://pma.metalformedu.org/pluginfile.php/23504/course/overviewfiles/AER-4028.jpg)
After enlarging the holes in row JD7, enlarge the holes in rows JD4, JD5, and JD6.
Learning Objectives
- Enlarge the holes in rows JD4, JD5, and JD6
![](https://pma.metalformedu.org/pluginfile.php/23512/course/overviewfiles/AER-4029.jpg)
After enlarging the holes in rows JD4, JD5, JD6, and JD7, enlarge row JD1 and JD3.
Learning Objectives
- Use two reamers to enlarge the holes in rows JD1 and JD3 to size
![](https://pma.metalformedu.org/pluginfile.php/23520/course/overviewfiles/AER-4030.jpg)
After enlarging the holes in all the other rows in the assembly, enlarge the holes in row JD8.
Learning Objectives
- Enlarge the holes in row JD8
![](https://pma.metalformedu.org/pluginfile.php/23528/course/overviewfiles/AER-4031.jpg)
Two rows in the final assembly require chamfers: rows JD4 and JD6.
Learning Objectives
- Choose appropriate scrap material
- Mark hole locations and drill and chamfer holes in scrap material
- Measure the diameter of a chamfer with a countersink gauge
- Adjust a countersink cutter to create a chamfer of the correct diameter
- Chamfer holes in the final assembly
![](https://pma.metalformedu.org/pluginfile.php/23536/course/overviewfiles/AER-4032.jpg)
Although no fasteners will be installed in this assembly, it is still important that you learn the final hole finishing procedures required for titanium assemblies.
Learning Objectives
- Edge break a hole to a specified diameter
- Inspect an edge break using a countersink gauge
- Deburr holes in a titanium assembly