HOLLFELDER - Основной каталог - 2013 EN

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                HPC milling cutters

                Cutting data recommendations, Application examples

The cutting data recommendations in the table are only guide values
and depend to a high degree on the stability of the machine, xture and workpiece.

Cutting groups  Material group  Composition / structure               Tensile strength Hardness          Cutting speed  Feed rate fz mm/z
                                                                                                            vc m/min

                                                                       RM     HB                         PCD / PCD 3    W 9930-…. W 9931-….
                                                                      (MPa)  HRC

21 Aluminium                                 not heat treatable               60                         -6000           PKD 0,05-0,20  0,1-0,25
22 forging alloys                                                            100                         -6000           PKD
                                         heat treatable/heat treated          75                         -6000           PKD
23                                                                            90                         -6000           PKD
       Aluminium                <12% Si      not heat treatable              130                         -2000          PKD 3

24                              <12% Si heat treatable/heat treated
       casting alloys
                                >12% Si      not heat treatable
25

Sealing surface milling

Workpiece                       Oil sump
Material                        GD-AlSi8...

Tools                           HPC milling cutter, dia. = 63 mm,
                                no. of cutting edges = 12, HSK 63-A

Cutting speed                   vc = 2,980 m/min

Revolution                      n = 9,500 rev/min

Feed per tooth                  0.16 mm

Feed rate                       32,000 mm/min

Achieved surface nish quality Rz = 15

12

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