Precihole Deep Hole Drilling Solutions for the Aerospace Industry

Precihole Deep Hole Drilling Solutions for the Aerospace Industry

The aerospace industry is synonymous with precision, safety, and performance—and deep hole drilling plays a vital role in ensuring that aircraft components meet these high standards.

What is Deep Hole Drilling?

Deep hole drilling refers to drilling holes where the depth is typically ten times or more the diameter of the hole. This technique is crucial for manufacturing critical components such as turbine blades, engine parts, landing gear, and fuel systems. In aerospace applications, even the slightest deviation in hole alignment or surface finish can impact structural integrity or performance.

Common Deep Hole Drilling Techniques in Aerospace

1. Gun Drilling
Gun drilling uses a long, slender drill bit with internal coolant flow. It's highly effective for holes with depth-to-diameter ratios up to 50:1. The coolant flushes chips while cooling the cutting edge, ensuring excellent straightness and a smooth bore finish.

2. BTA Drilling (Boring and Trepanning Association)
BTA drilling is preferred for holes larger than 19 mm in diameter. It uses a specialized tool that removes the material core while the coolant flows through the tool. This method is ideal for achieving high-precision, large-diameter holes with minimal tool deflection.

Applications of Deep Hole Drilling in Aerospace

Deep hole drilling is essential across a wide range of aerospace components:

• Engine Components: Cooling holes in turbine blades and vanes are created using gun drilling, ensuring thermal regulation and preventing overheating.
• Landing Gear: Deep holes allow the secure fitting of bolts and fasteners into high-load structures.
• Fuel Systems: Precise holes are drilled in nozzles and channels to ensure efficient and controlled fuel delivery.
• Hydraulic Systems: Critical components like valve bodies and manifolds require extremely accurate holes to ensure leak-free operation.
• Instrumentation: Sensor mounts and wiring channels are drilled into various structures to support avionics and control systems.
• Structural Components: Spars, ribs, and stringers often need deep, aligned bores to maintain structural strength and stability.

Why Choose Precihole for Aerospace Drilling?

With over 30 years of experience, Precihole Machine Tools is a trusted name in deep hole drilling technologies—especially for complex and demanding industries like aerospace.

Our machines and solutions are:

• Industry-Proven: Backed by years of field success and global installations.
• Highly Accurate: Built to meet the tight tolerances demanded by aerospace applications.
• Reliable & Efficient: Engineered for long-term performance under high-stress production environments.
• Customizable: Designed to be adapted to your specific component, material, and production needs.