Sutton Tools STF Endmill

Product catalog summary

Introduction
Sutton Tools has introduced the R45-STF carbide endmill, a semi-roughing tool designed to eliminate the need for finishing endmills in many applications. Its unique chip-breaker design allows for excellent workpiece finish and higher speeds and feeds by producing short chips.

Specifications
The R45-STF features a high-performance four-flute geometry with unequally indexed cutting edges, providing superior tool stability and lower cutting forces. The tool is coated with TiAlN for longer life and includes a 45° chamfer at the cutting edges for increased strength.

Applications
This endmill is suitable for a wide range of materials, including aluminum, general steels, high alloyed steels, stainless steel, and titanium. It is designed for both finishing and semi-roughing applications and can handle materials with strength up to 1400 N/mm².

Product Variants
The R45-STF is available in various sizes, with catalogue codes E545 and E546. It features a VHM-ULTRA grade of carbide and an AlCrN surface finish.

Performance Parameters
The document provides detailed feed rates and cutting speeds for different materials and applications, including profiling, slotting, and contouring. The feed per tooth (fz) and cutting speed (vc) are specified for various materials, such as steels, stainless steels, cast irons, coppers, aluminiums, and plastics.

Formulas
Key formulas for calculating revolutions per minute (n), feed rate (vf), cutting speed (vc), metal removal rate (Q), and feed per tooth (fz) are provided to assist in optimizing machining processes.

Catalog excerpts

100% Australian Owned www.sutton.com.au Special Tooth Form (chip-breaker) 45° Chamfer a a b b fig. 1 Unequally Indexed Cutting edges finishing, slotting & roughing with the one tool! Multi-tasking is here... R45 STF Endmills As a part of Sutton Tools commitment to introducing innovative new products, Sutton Tools has launched the new R45-STF (Special Tooth Form) carbide endmill. The R45-STF is a semi-roughing tool, which eliminates the use of finishing endmills in many cases due to its unique chip-breaker design that produces an excellent work piece finish, yet enables higher speeds and feeds, as it produces short chips, even in longer chipping materials. The high performance - four flute geometry with unequally indexed cutting edges (fig.1 aand lower cutting forces, when combining TiAlN coating effectively. This results in longer tool life as the build up of harmonics is minimized, hence, the cutting edges remain sharper longer. Another feature of the geometry, is the 45° chamfer at the outer corners of the cutting edges, which offers increased strength, as often, this area can wear with heavier roughing cuts. The R45-STF is the complete universal endmill designed for materials from aluminiums and general steels, to a wide range of latest generation materials like (High) Alloyed steels, Stainless, Titanium, etc.

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