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Photo courtesy Haimer, Kennametal


Toolholding


For ultra-high-precision milling for small-to-medium volume manufacturing, Bilz offers the Diebold UltraGrip milling chuck, which combines the best possible cutting tool run-out (TIR) with maximum clamping force. The UltraGrip system provides a concentricity tolerance of ≤ 3 µm and the assembled system of toolholder and cutting tool provides a maximum TIR of ≤ 3 µm for high-performance cutting for medical, aerospace, and die/mold applications. Holders are all balanced with G 2.5 accuracy and are available in CAT, BT, and HSK tool tapers. To improve the ability to bear radial forces and TIR accuracy not available with other systems, Bilz has introduced the Diebold CentroGrip collet chuck. It provides concentricity


tolerance of ≤1 µm and the assembled system, including toolholder, collet, and cutting tool, provides a maximum TIR of ≤ 3 µm for medical, aerospace, and die/mold industry applications. CemtrpGrip toolholders are balanced to G 2.5 and are available in CAT, BT, and HSK tool tapers.


Duo-Lock features an


innovative thread design (blue) with a proprietary double cone connection and


an additional third supporting area


(green) in the back of the interface for three contact point connection.


CAPTIS


CLAMPING SYSTEM The modular and flexible system


“New tool clamping technology allows shops to maximize machining operations; however, spindle maintenance is equally important. Any spindle taper wear, tool clamping taper wear, or spindle misalignment will have a negative impact on tool clamping assemblies [toolholder and cutting tool] regardless of quality of the as- sembly. Using spindle wipers, Pull Force gages to routinely check drawbar force, and test arbors to routinely check spindle alignment and spindle run-out are equally important to maximum machining conditions,” said Fara.


Modular construction for maximum flexibility Quick conversion from external to internal clamping in less than a minute High concentricity and repeatability of 0.005 mm


RÖHM Products of America | www.rohm-products.com | office@rohm-products.com I 1-800-445-7656


Kennametal, Haimer Team Up on Carbide Cutting Heads There is no shortage of innovative toolholding solutions that have been developed using either standard or proprietary special toolholding designs. Kennametal Inc. (Latrobe, PA) and Haimer GmbH (Igenhausen, Germany; Villa Park, IL) have entered into a joint technology partnership in developing the Duo-Lock modular cutting tool system for carbide cutting heads. Design of the Duo-Lock modular interface is intended to make the modular connection as solid as a carbide end mill and provide maximum stability, increased load capac- ity, and high run-out precision. Duo-Lock features an innovative thread design with a proprietary double cone connection and an additional third supporting area in the back of the interface. The connec- tion overcomes the interface weakness


60 ManufacturingEngineeringMedia.com | November 2014


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