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Home / END MILLS USE INTRICATE GEOMETRY FOR NON-FERROUS MACHINING

END MILLS USE INTRICATE GEOMETRY FOR NON-FERROUS MACHINING

H40ALV and H40ALV-RN aluminum end mills from Helical Solutions use a variable-pitch flute configuration with tight cutting diameter tolerances that reduce chatter and tool offset adjustments and optimize tool performance.

Posted: September 2, 2010

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Helical Solutions (Gorham, ME) is introducing the H40ALV and H40ALV-RN, representing a major expansion of its aluminum end mill series. The new end mills are robust additions to the Helical lineup and include intricate geometry additions for an ?ultimate? non-ferrous machining solution.

This new H40ALV line includes a variable-pitch flute configuration and cutting-diameter tolerances that are among the tightest in the industry (-.0001 in to -.0004 in). This precision delivers reduced chatter, fewer tool offset adjustments and optimum tool performance. Customers testing H40ALV prototypes report improved finishes and quieter operation.

?This launch is one of the most powerful tool offerings on the market, giving our customers a tool with all the options and the latest in tool design technologies at a very competitive price,? says Scott Tiehen, Helical?s national sales manager.

Previously offered as a premium customization, the line now includes a full corner radius option ranging from .015 in to .250 in as standard product. The corner radii allows customers to accommodate finish part requirements, offers improved part finish and superior corner protection. Additionally, tool life expectancy for the H40ALV line should show a significant increase. Also contributing to improved finishes are the H40ALV?s wiper flats. Helical?s wiper design burnishes the part floor without creating too much tool pressure/friction.

Responding to customer requests for a more ?opened up end geometry? due to the industry trend toward ramping and plunging in aluminum, the new H40ALV line includes new end geometry. ?We have re-designed the geometry in order to accommodate all three teeth cutting the center, allowing for maximum chip clearance and evacuation while plunging and ramping,? Tiehen says.

The updated line of end mills is crafted of certified premium sub-micron grain carbide and available in stub, regular and reduced-neck lengths. A ZrN (Zirconium Nitride) coating that provides improved lubricity for maximum chip evacuation and resistance to abrasion for extended tool life is standard. The H40ALV-RN is similar in design and function to the H40ALV. The difference is that this tool has a reduced neck diameter with a relatively short flute length, allowing for longer reach into deep pockets while maintaining maximum tool rigidity, particularly useful for high-speed milling in pockets.

Both the H40ALV and the H40ALV-RN are available in shank diameters ranging from 1/4 in to 1 in. Special configurations can be manufactured within ten days. Helical recommends using high-pressure coolant, flood, mist or MQL when machining with these tools.

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www.1helical.com

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