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The significant increase of the use of composites (carbon fiber reinforced polymers) in the aerospace field has challenged cutting tool manufacturers to develop hole making tools with characteristics normally not associated with metal cutting.
CFRP, while being a poor conductor of heat, is abrasive. The issues with drilling occur when fibers are pulled out or fracture takes place between the layers. Most often either aluminum or titanium is stacked with the CFRP for support. The drill must have geometry not only to penetrate the composite, but drill the stacked metal as well.
Hole quality is measured by delamination or breakout of the bottom layer or frayed fibers in the hole. Hole size can also be critical. Since a high volume of holes typically need to be drilled, choosing a tool with most cost effective method is critical.
Regal provides a variety of coated tools in High Speed Steel, Cobalt and Carbide for drilling Composite materials. The advantages are:
Regal has developed drills for hand operations in difficult to access spaces using proprietary particle metal substrates and advanced coatings. This mirrors the holes produced by the more advanced methods at half the cost. Since safety is critical in these applications, infrequent breakage compared to the carbide shank tools is an added advantage.
See our product solutions below or contact us to see which tool is best for your productivity goals.
The significant increase of the use of composites (carbon fiber reinforced polymers) in the aerospace field has challenged cutting tool manufacturers to develop hole making tools with characteristics normally not associated with metal cutting. CFRP, while being a poor conductor of heat, is abrasive. The issues with drilling occur when fibers are pulled out or fracture takes place between the layers. Most often either aluminum or titanium is stacked with the CFRP for support. The drill must have geometry not only to penetrate the composite, but drill the stacked metal as well.
National Aerospace Standards (NAS 907) made from quality high-speed cobalt steel.
Hole quality is measured by delamination or breakout of the bottom layer or frayed fibers in the hole. Hole size can also be critical. Since a high volume of holes typically need to be drilled, choosing a tool with most cost effective method is critical. Regal provides a variety of coated tools in High Speed Steel, Cobalt and Carbide for drilling Composite materials.
Regal has developed drills for hand operations in difficult to access spaces using proprietary particle metal substrates and advanced coatings. This mirrors the holes produced by the more advanced methods at half the cost. Since safety is critical in these applications, infrequent breakage compared to the carbide shank tools is an added advantage.
