Kennametal’s MaxiMet end mills are designed for aerospace and general engineering shops seeking to improve performance in machining high volumes of aluminum. According to the company, the cutters are suitable for applications that require both high metal removal rates and quality wall and floor finishes.
The cutters feature a flute design that is said to enable high feed rates by providing rigidity behind the cutting edges. This results in more metal removed in fewer passes, lowering costs per part. Additionally, a special edge condition and corner geometry wiper facets improve surface finish, the company says. Available in two- and three-flute styles with various corner radii options, the end mills are useful for roughing, semi-finishing and super-finishing operations.
The company says the tools are useful in thin-wall applications. They can be incorporated in slotting operations at axial cutting depths ranging to 1 × D and side-milling operations with radial and axial cutting depths ranging to 0.5 × D and 1.5 × D, respectively. The three-flute end mills also incorporate the company’s Harvi unequal flute spacing to reduce harmonics in the cut, resulting in less vibration and tool deflection for higher metal removal rates and machining speeds.
Editor PickCan 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.