Perfect Point EDM E-Drill Fastener Removal

Team members required:

One

Description:

This event will test the technician’s ability and speed when removing flush installed titanium fasteners from an aircraft structure. This will require technicians to remove 5 fasteners using an E-Drill from an inlet.

References:

Event Detailed Instructions:

https://ppedm.com/about-us/events/amc/

 E-Drill Training Videos:

 https://ppedm.com/support/training-videos/

Tools and equipment list:

Ear Protection Required, we will have spares available. The E-Drill hand tool, locating devices, punches, and consumables will be provided by Perfect Point.

Instructions:

1. Identify the Qty. (5) Fasteners to be removed from workpiece. Judges will pre-mark work area with tape.

2. Using the Offset Vacuum Locator and The Aperture Bombsight, locate the tooling over the first fastener head.

1. Place the tool over the fastener and allow vacuum pressure to lock tool to work piece.
2. Insert Visual Bombsight into the open end of the locator and precisely align the fixture over the fastener head.
3. Depress vacuum release lever on side of tool base to release vacuum and allow for precise movement of the fixture. You can feather the trigger for more precise movement before locking in place. See figures 2 and 3 below for examples of the alignment device over flush fastener heads.

DO NOT RUSH THE LOCATION STEP as it will lead to misalignments and therefore penalties to your score. See final note for information. On the other hand, we will give slight bonuses for cuts that are extremely accurate, less than 1 thou off-center, so take your time.

Improperly aligned locator. Will result in penalty

Properly aligned locator over fastener

3. Once aligned, remove the bombsight from the vacuum locator. Insert E-Drill Hand-Tool into OVL Fixture and Cut Fastener

1. Press down E-Drill with enough force to seal the O-Ring at the end. Too firm of a force can lead to an unsteady hand which can

4. Execute Cut Sequence

1. Activate and hold trigger until Green light on back of Hand-Tool illuminates. (Around 5-10 seconds per cut)

5. Place E-Drill Back into hand tool stand

6. Repeat steps 2-6 until Qty. (5) fasteners are cut

7. Replace Hand-Tool into the Hand-Tool Stand before continuing to punch out.

8. Using the Single Shot Air Punch, Align the Air punch nose adapter into the Cut Ring on the fastener.

9. Once aligned, pull trigger while pushing down on the tool. Note: If fastener does not separate after, try punching one or two more times. If it still does not punch, move on to punching the rest of the fasteners. You will need to re-locate E-Drill and re-cut the fastener. (steps 2-6)

10. Repeat Steps 9 and 10 for all fasteners.

11. Collect fastener heads/FOD and place in FOD Tray.

12. Notify the judge that you are DONE 

Note: This year we plan to use our new post-cut inspection device that will analyze how far off the cut is from the center of the fastener head. We will be giving small penalties, 10s, for each cut that is too far off from center of the fastener. We will base this distance off where the cut has potential to break-through the fastener head and damage the underlying part. What this means is you will need to take the time when locating over the fastener to avoid these penalties.

Scoring:

Scores will be calculated according to the AMC score sheet. Additional penalties will be assessed for misaligned cuts and damage to the workpiece, see the final note in the above section.