Perfect Point E-Drill Fastener Removal

Competitors Required:

1

Description:

This event evaluates competitors’ ability and speed in removing titanium fasteners from an aircraft structure.

References:

Event Detailed Instructions

E-drill Training Videos

Tools, Equipment, and Materials Provided:

• E-drill hand tool
• Locating devices
• Punches
• Hammers
• Consumables

Snap-on provided tooling (qty one in each of two pallets unless otherwise indicated): none

Procedures:

The competitor will remove five fasteners from an inlet using an E-drill. The fasteners will be of a blind-bolt configuration and exact part numbers will be presented at the competition.

“Slow is smooth. Smooth is fast.”

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

1. 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 it will lead to misalignments. Judges will use a post-cut inspection devise to analyze how far off the cut is from the center of the fastener head. Penalties will be assessed for each cut that is too far off the center of the fastener—where the cut has potential to break-through the fastener head and damage the underlying part. Bonuses will be provided for accurate cuts, so take your time. See examples of properly and improperly aligned locators below.

1. 3. Once aligned
      1. Remove the bombsight from the vacuum locator. Insert the E-Drill hand tool into the OVL fixture and cut the fastener.
      2. Press down on the E-Drill with just enough force to seal the O-ring at the end. Too much force can lead to an unsteady hand, which may result in shallow cuts that do not punch out.
   4. Execute Cut Sequence. 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 B-E 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 H and I for all fasteners.
   11. Collect fastener heads/FOD and place in FOD Tray.
   12. Notify the judge that you are DONE