Deep Hole Drilling
Deep hole drilling (DHD) creates holes with a depth-to-diameter ratio of 6:1 or greater. Using a carbide CT drill bit, deep holes are produced in a single step, eliminating the need for multiple operations. By applying up to 2000 lbs of coolant pressure at the drill tip, heat is decreased, and chips are effectively removed. This allows the drill to operate more coolly, maintain performance, and achieve consistent results.
This method is preferred for applications that need precise holes, such as hose and hydraulic fittings, press-fit retention, fuel fittings, and more. It can also create holes for taps without needing extra tools like reamers or broaches, making it a suitable method for compression fittings and other assembly needs.
Buell’s Deep Hole Drilling Capabilities
At Buell, we excel in deep hole drilling, achieving with one drill what others may require two or more drills to accomplish.
Our CNC Swiss and Lathe Turning Centers have high-pressure coolant systems, which improve the drilling process compared to non-CT methods. This not only saves time and reduces costs but also minimizes issues related to internal feature quality.
Additionally, our Davenport screw machines feature a proprietary coolant-through drilling process developed by Buell. Since the OEM didn’t initially offer this technology, our team developed it to meet the high-volume, deep hole drilling needs of our customers.
Benefits of Deep Hole Drilling
CT drilling offers several advantages over traditional methods. Key benefits include:
Precision
CT drilling creates small, precise holes necessary for fluid control, assembly, press-fit applications, and more.
Straightness
The process produces straight holes, even in challenging materials, thanks to the rigidity and heat resistance of carbide tools.
Speed
CT drilling completes tasks quickly, whether for large or small holes.
Versatility
It works with different materials, including steel, stainless steel, brass, aluminum, and bronze.
Applications of Deep Hole Drilling
CT drilling is used across various industries, including automotive, hydraulics, consumer goods, lawn and garden, medical, and defense. Common applications include:
- Pistons
- Hydraulic fittings
- Fuel injectors
- Barbed fittings
- Choke tubes
- Hose nipples
- Compression limiters
- Quick-connect fittings
- Bushings
- Hose Fittings
- Stance rods
- Adapters
- Armatures
- Valve bodies
Partner with Buell Automatics
Buell’s deep hole drilling machines are designed to deliver consistent results and outperform traditional methods. Our equipment meets high standards, and we place customer satisfaction first by offering reliable service and support.
With CT drilling, we deliver faster and more accurate results, enabling high-quality outcomes for various applications. We offer competitive pricing and stand behind our work with superb customer service. For more details or to request a quote, contact our team today.