Каталог Sumitomo фрезы со сменными пластинами - страница 59

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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 800 3rd Step 2,500 Back Force Cutting Distance (mm) ○：No breakage, edge OK Cutting Force (N) 2,000 600 ×：Breakage, 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 200 ap=10mm ap=10mm Dry 500 Dry Work Material：S50C Work Material：S50C H Tool Diameter：80mm Tool Diameter：80mm 0 0 Sumi Power Mill Competitor A Competitor B Sumi Power Mill Competitor A Competitor B PWS Type (Screw-on) (Tangential) PWS Type (Screw-on) (Tangential) ● Performance Comparison with Nicked R Type Inserts Cutters Milling Nicked R Type Inserts General-Purpose G Type Inserts ■ Comparison of Cutting Force Reduced cutting power and excellent vibration resistance! Face 7,000 Milling R Type Reduced 25%!! G Type Shoulder 6,000 Milling 5,000 High Feed Small chips! Cutting Force (N) 4,000 Radius 3,000 Multi- Purpose Cutting Conditions vc=200m/min R/ 2,000 fz=0.15mm/t Profiling ae=20mm ap=10mm Groove/ 1,000 Dry T-Slot Work Material：S50C 0 Tool Diameter：100mm Chamfering Nicked R Type General Machining (G-Type) Aluminum/ Cautions when Using Nicked RType Inserts 4 Nicks 1）Note for inserts set-up Light Alloys (Corners 1 and 4)  When using R type nicked indexable inserts, attach them so that High-Speed the nicked grooves alternate as shown in the image to the left. Cast Iron 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