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Tools for Milling and Boring.

Sandvik Coromant has developed new insert geometries for its CoroMill 331 milling cutter, geometries for radius inserts. The -M30 geometry Is designed to optimize steel and cast-iron groove milling (although it should be noted that the CoroMill 331 can perform face, shoulder, side and face milling, as well as grooving). The geometry, which is available for size 11 inserts with dimensions from 1.5 to 3.0 mm, is characterized by its light cutting action. However, it should be noted that the geometry is sufficiently tough such that it is particularly useful for operations when there are weak setups or long overhangs. The grades the inserts are available in include GC1130, GC1020, GC3040, and GC4330. In addition to which, Sandvik is offering size 8,11 and 14 inserts with a 4.0-mm radius in -WM geometry in the aforementioned grades. In addition to which, Sandvik has developed a new generation of its CoroBore 825 dampened fine-boring tool that uses what's known as "Silent Tools" technology. That tech uses dampers that are specifically dimensioned to suit every adapter size in the range, and which result in the ability to securely machine setups where there are long overhangs. A couple of changes for the boring tool include a switch from steel to aluminum for the boring head, and the head is shorter so that the damper is closer to the cutting edge. What's more, according to Jenny Nilsson, Global Product Manager at Sandvik Coromant, "Internal channels are utilized to deliver coolant directly to the cutting edge, which is another factor that contributes to improved surface finish, higher penetration rates and greater process security."

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Publication:Automotive Design & Production
Date:Sep 1, 2019
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