Каталог Sumitomo фрезы со сменными пластинами - страница 59

SEC-Sumi Power Mill PWS(F) / PWSR Type ■ General Features Highly reliable shoulder milling cutter with tangentially mounted for never- before-possible high cutting edge strength and sharp cutting edges. A 2-step insert array structure creates a new PWSR Type to meet the needs of deep cutting. ■ Characteristics ● Tangentially mounted inserts for outstanding cutting edge strength combined with optimised breaker for outstanding edge sharpness and cutting ability. ● Nicked insert design created with high-precision molding technology allows stable milling even in applications with large tool overhang. ● New ACP and ACK milling grades are used to meet the needs of various types of work material. ■ Performance ● Performance Comparison with General-purpose G-type Inserts ■ Cutting Edge Strength Comparison ■ Comparison of Cutting Force High cutting edge strength for excellent stability! Cutting that is nearly the same as screw-on type!! 1,000 3,000 1st Step Principal Force 2nd Step Feed Force 3rd Step 2,500 Back Force 800 ○：No breakage, Cutting Distance (mm) edge OK Cutting Force (N) 2,000 ×：Breakage, 600 unusable 1,500 Cutting Conditions Cutting Conditions 400 vc=150m/min vc=150m/min fz=0.20mm/t 1,000 fz=0.20mm/t ae=3mm ae=3mm ap=10mm ap=10mm 200 Dry 500 Dry Work Material：S50C Work Material：S50C 0 Sumi Power Mill PWS Type Competitor A (Screw-on) Competitor B (Tangential) Tool Diameter：80mm 0 Sumi Power Mill PWS Type Competitor A (Screw-on) Competitor B (Tangential) Tool Diameter：80mm H Cutters ● Performance Comparison with Nicked R Type Inserts Milling Nicked R Type Inserts General-Purpose G Type Inserts ■ Comparison of Cutting Force Reduced cutting power and excellent vibration resistance! 7,000 Face R Type Milling G Type 6,000 Reduced 25%!! Shoulder Milling 5,000 High Feed Cutting Force (N) s! ll chip 4,000 Radius Sma 3,000 Multi- Cutting Conditions Purpose vc=200m/min 2,000 fz=0.15mm/t R/ ae=20mm Profiling ap=10mm 1,000 Dry Groove/ Work Material：S50C T-Slot Tool Diameter：100mm 0 Chamfering Nicked R Type General Machining (G-Type) Aluminum/ 4 Nicks 1）Note for inserts set-up Light Alloys Cautions when Using Nicked R Type Inserts (Corners 1 and 4) When using R type nicked indexable inserts, attach them so that High-Speed Cast Iron the nicked grooves alternate as shown in the image to the left. ③ ④ 2）Note for cutting condition In order to attach as shown in the image to the left, the feed rate per tooth is double that when attaching the same-shaped inserts on all teeth. This means ④ that adjustments should be made so the upper feed limit is as shown below. 3 Nicks fz=0.25mm/t (Corners 2 and 3) Example: Use at fz=0.2mm/t Feed when all teeth are normal: 0.2mm/t ③ ③ Feed when nicked: 0.4mm/t ④ Any incorrect use of inserts may damage tools. H59