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The multi-application, high-performance CoroDrill 460-XM from Sandvik is designed for a range of materials. The micro-grained carbide drill features a coating with a special finishing treatment to reduce the coefficient of friction. The 140-degree point angle is said to be well-suited for multi-application drilling with increased centering capabilities and low-thrust-force design. The strong web design provides cross-sectional strength that, combined with increased flute volume, enhances chip evacuation, the company says.
The drill is available in diameters ranging from 3 to 20 mm (0.118" to 0.787") and lengths ranging from 2×D to5×D (DIN 6537 K and DIN 6537 L). Its achievable hole tolerance is IT8–IT9 with internal and external coolant.
Can Additive Manufacturing Increase Milling Feed Rates?
With PCD tooling, yes it can. The diamond cutting edges demand a large number flutes to realize their full effectiveness. Traditional methods for making cutter bodies limit the number of flutes, but 3D printing is delivering tools with higher flute density and other enhancements as well.