CASE STUDY | AEROSPACE

Automated Fast-Hole EDM Drilling For Aerospace Lock Wire Fasteners

A robotic Titan iSeries cell engineered to produce precisely clocked, burr-free safety-wire holes in demanding aerospace fasteners.

THE APPLICATION:

A Small Hole With A Critical Safety Function

Safety lock wires keep structural fasteners secure under severe flight vibration. Their cross-holes must be positioned precisely around the bolt head and clocked to the internal Torx drive geometry.

On high-stength alloys, conventional micro-drills can skid at the curved shoulder, flex on entry, break in the workpiece, or push an exit burr into the drive recess.

THE CHALLENGE:

Severe Geometry. Difficult Alloys. No Room For Burrs.

01

Angled Entry

A curved, chambered shoulder makes mechanical drills skid, flex, and miss true position.

02

Drive-Recess Burrs

An exit burr inside the Torx recess can clock driver engagement and scrap a finished fastener.

03

Tough Alloys

Inconel, A286, titanium, and 300-series stainless accelerate wear and micro-drill breakage.

04

Radial Clocking

All three holes must index precisely relative to the internal recess floor and lobe walls.

THE TITAN SOLUTION:

One Automated Cell From Part Load To Finished Pattern

Titan combined non-contact EDM drilling, precision indexing, robotic handling, and automatic part alignment into a coordinated turnkey process.

01

MACHINE

iSeries Fast-Hole EDM

A rigid C-frame, multi-axis control, dialectic filtration, and automatic electrode changing support continuous production.

  • High-pressure flushing
  • No cutting pressure
  • Automatic electrode changing

02

POSITIONING

Integrated 4th-Axis Indexer

A precision rotary indexer grips the fastener shank and executes the specified radial pattern in one setup.

  • Exact three-hole clocking
  • Stable basin workholding
  • Single-setup execution

03

AUTOMATION

Robot + CNC Probing

A co-bot loads parts while probing locates the physical origin and establishes orientation to the Torx lobes.

  • Automated load/unload
  • Touch or optical alignment
  • Hands-free production

THE ENGINEERED PLATFORM:

iSERIES + ROBOTIC AUTOMATION

Titan iSeries supplies motion, spark control, filtration, and electrode management. Titan extended the platform with rotary indexing, part-orientation logic, and robotic handling engineered around the fastener.

4-AXIS CNC COORDINATION
AEC-ENABLED CONTINUITY
CO-ROBOT MATERIAL HANDLING

THE RESULT:

Repeatable Lock-Wire Holes Without Fragile Tooling

Non-contact spark erosion removes the mechanical causes of drill walk, exit burrs, and cutter breakage while automation makes the pattern predictable at production scale.

01

Burr-Free Drive Recess

The process avoids pushing mechanical burrs into the precision Torx drive geometry.

02

Precision Radial Patterns

CNC probing and indexing hold hole position and clocking from fastener to fastener.

03

Hands-Free Throughput

Robotic loading and electrode management support long unattended production runs.

PRECISION. PRODUCTIVITY. PARTNERSHIP.

Let Titan Solve Your Production Challenges

Bring your part geometry, material, tolerance, and throughput requirements to Titan EDM’s application engineering team.