Modern Machine Shop
A new high-feed tool extends the benefits of Iscar’s Helitang Upfeed series of tangential milling cutters to include ramping work, as well. The feed mill is designed for titanium and stainless steel operations.
In tangential milling, the insert lies flat in the pitch circle, presenting its strongest cross section to the main cutting force vector. This enables users to increase feed, speed and cut depth without risk of sudden insert failure, the company says. It also enables stronger cutters and finer pitch in a given-size cutter. This application is designed for heavy rough machining and unstable conditions on flat work.
Key to the new ramping capability is the FTP insert. The geometry is modified to enable ramping while retaining the high-feed capability of the Tangmill line. It features double sides with four peripheral-ground cutting edges plus a shallow, 12.5-degree entry angle. It fits rigidly into the cutter’s standard tangential seat with dovetailed clamping. Inserts are available with a choice of other edge geometries for standard work or ETR geometry for heavier, higher feed applications.