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New Geometry Tackles the Toughest Rough Turning Applications

Double-sided ISO indexable inserts with RP7 geometry from Walter combine a ground contact surface with an optimized profile that has a tailored protective chamfer to guard against fracturing.

Posted: July 30, 2016

The double-sided indexable insert with RP7 geometry features a specially designed T-land for protection against chipping, a ground seating surface, center curve design for extra cutting edge strength, and a deeper chip groove that enables higher feed rates. This geometry is particularly suited to working on applications that include heavily interrupted cuts or forged parts with variable machining depths, and is also ideal for roughing steel materials.

Walter USA, LLC (Waukesha, WI) has introduced double-sided ISO indexable inserts with RP7 geometry that provide maximum process reliability in rough turning by combining a ground contact surface with an optimized profile that has a tailored protective chamfer to guard against fracturing. The RP7 benefits from a new design that features a specially designed T-land for protection against chipping, a ground seating surface, center curve design for extra cutting edge strength and a deeper chip groove that enables higher feed rates.

This geometry offers an alternative to MP5/RP5 geometry when a more robust cutting edge is required. It is particularly suited to working on applications that include heavily interrupted cuts or forged parts with variable machining depths, and is also ideal for roughing steel materials.

In addition, the inserts’ Tiger·tec® Silver coating technology extends tool life, thereby lowering new tool investment costs. Costs are also significantly reduced by having a two-sided insert, providing double the standard number of cutting edges on each indexable insert in comparison to the usual single sided insert typically used for heavily interrupted roughing cuts. These features, in conjunction with the new optimized geometry, make the new RP7 inserts the productive solution for rough turning applications.

The new RP7 geometry is available in the four basic shapes: CNMG, SNMG, TNMG and WNMG, and in grades WPP10S, WPP20S and WPP30S, and now in the extra tough grade WKP30S for applications requiring maximum toughness.

Walter is a global leader in the metalworking industry with over 90 years of experience in precision cutting tools for milling, drilling, turning, boring and specialized tools. They manufacture and sell the brands Walter Valenite, Walter Titex, Walter Prototyp and Walter Multiply through a strong network of distributors and field engineers across subsidiaries in the U.S., Canada, Mexico, Brazil and Argentina.

Walter USA, LLC, N22 W23855 Ridgeview Parkway West, Waukesha, WI 53188, 800-945-5554, www.walter-tools.com/us.