Heule Deburring Tool Automates Through-Hole Applications

Source: Heule Precision Tools

Heule Precision Tools’ COFA tooling is designed for automated through-hole deburring applications, including those on sloped or uneven surfaces. This technology uses a carbide blade to remove burrs from the front and back of a drilled through-hole in a single pass, without stopping or reversing the spindle. The edge break is even and consistent across a wide spectrum of metals and alloys whether the surface is even, elliptical or sloped.

Automating the deburring processes for hard-to-reach cross-burrs shortens cycle times and improves efficiency. Carbide blades extend tool life and maintain edge sharpness, reducing downtime. COFA tooling is well-suited for both manual and CNC environments, as well as live-spindle lathes and robotic automation cells — operating reliably with or without cutting fluid. A variety of sizes from 2-30 mm (0.79-1.19") are available from stock. COFA tooling is designed for a wide range of applications in aerospace, automotive, energy, precision machining, heavy equipment and medical industries.

Controlled by a simple spring, the carbide cutting blade follows the contour of the hole’s surface, removing all burrs while creating an even-tapered corner break. The blade does not cut as it passes through the bore and will not damage the hole’s surface. The edge break begins only at the point where the blade contacts the material and then tapers the hole’s edge. This enables faster feed rates since the tool slows itself down as it enters the through-hole. The COFA tool has no adjusting screws or presetting requirements and is available in common tool sizes and spring strengths for various materials and hole sizes.

A wide range of COFA tooling is available, including COFA C for threaded holes and COFA Cassette for deburring larger bores quickly and efficiently. Custom designs are available to match deburring geometries and process needs.