Sumitomo - Полный каталог инструмента - 2016 EN

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Recommended Grades and Chipbreakers                                                                                                              Cast IronCastIron

Grades               AC405K / AC415K / AC420K                                                                                                                                                                Insert
                                                                                                                                                                                                          Selection
AC405K:	Suitable for high-speed continuous cutting. Excellent resistance to wear and plastic
            deformation.

AC415K:	First recommended grade for cast iron turning. Provides stability and long tool life in a wide
            range of processes.

AC420K:	Superior fracture resistance provides excellent stability in interrupted unstable cutting and
            when cutting mill-scaled work.

l Improvements to super FF-TiCN coating grain and hardness provide significantly improved wear resistance.
   Newly developed stress control technology enhances micro-grained  Alumina (FF-Al2O3) coating for superior reliability.

l Coating Structure

                              Micro-grained  Alumina (FF-Al2O3)                          Coating stress control technology reduces abnormal
                                                                                          damage caused by chipping.
                             Improved adhesion and peel-off
                             resistance.                                                                                                                                   Chipping

                              Super FF-TiCN

                             Ultra-fine grained, ultra-hard TiCN coating
                             increases wear resistance 1,5 times.

                                                                                                                                                 AC400K Series                    Conventional
                                                                                                                                                     Coating                         Coating

           AC405K / AC415K Wear Resistance                                                                                                       AC415K Chipping Resistance

                                                                         Competitor‘s                                                                                                Chipping resistance
                                                                         Product A (K05)                                                                                        improved 1,5 times
                                                                         Competitor‘s
                                                                         Product B (K10)
Cutting Speed
                                                                                                           No. of Impacts until Chipping Occurs

           Flank Wear Width (Vb) = Cutting Time until 0,3mm(min)                                                                                         AC415K      Conventional   Competitor‘s
                                                                                                                                                                         Tool      Product C (K10)

Work Material: 	 GGG-40,3 (Round Bar)                                                     Work Material: 	 GGG-40,3

Insert: 	        CNMG120408                                                               Insert: 	                                                      CNMG120408
Cutting Conditions:	 vc=200 ~ 400m/min, f =0,30mm/rev, doc =1,5mm, Wet                    Cutting Conditions:	vc=300m/min, f =0,25mm/rev, doc =1,5mm, Wet

                                       AC420K Fracture Resistance

GGG-40,3 Grooved (Heavy Interrupted Acceleration Test)                                    Edge Wear Comparison (After 150s)

AC420K                                               Great improvements                                                                          AC420K           Competitor‘s      Competitor‘s
                                                     in fracture resistance                                                                                      Product D (K15)   Product E (K20)
Competitor‘s
Product D (K15)              Tool Life sec.

Competitor‘s
Product E (K20)

                                                                                          Work Material: 	                                               GGG-40,3

                                                                                          Toolholder: 	                                                  PCLNR2525-43, Insert: CNMG120408
                                                                                          Cutting Conditions:	vc=350m/min, f =0,25mm/rev, doc =1,5mm Wet

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