Pattern Drilling

Dearborn can drill a sequence of holes within a very tight locational tolerance in a variety of sizes, depths and dimensional orientations.

Pattern drilling is a technique that is used when a sequence of holes must be drilled within a very tight locational tolerance or array, often involving a variety of sizes, depths and dimensional orientations.

Complex variations in drill angle, hole depth and shape make these projects difficult, if not impossible, for many companies, but Dearborn has experience pattern drilling a wide variety of materials and metal alloys.

We handle these complex challenges every day and approach each project knowing that no matter how complex the pattern or design array needs to be, Dearborn can maintain precision through an entire pattern drilled part with our industry-leading Borecentric® process.

Dearborn can drill a sequence of holes within a very tight locational tolerance in a variety of sizes, depths and dimensional orientations. | Dearborn, Inc.
Dearborn can drill a sequence of holes within a very tight locational tolerance in a variety of sizes, depths and dimensional orientations. | Dearborn, Inc.

Applications for this type of process include:

  • Steel industry, where cooling or heating platens require waterways that require accurate locations
  • Roll industry, in which vacuum holes must be located accurately, and hole size tolerance and microfinish are critical
  • Instances where hole location accuracy is critical, as well as hole movement from the entrance though the overall length of the part
  • Projects that need to hold hole-to-hole locations as tight as .003” to .005”
  • We routinely pattern drill difficult materials such as Inconel┬«, titanium, copper, heat treated stainless steel, beryllium, etc.