Оптимальный выбор Kennametal 2025 - 2026 - страница 246

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HIGH PERFORMANCE HARVI SERIES HARVI II UDDE • Application Data KCSM15/ Recommended feed per tooth (Fz = mm/th) for side milling (A). KC643M For slotting (B), reduce Fz by 10%. Material Group Cutting Speed — Vc A B D1 — Diameter m/min ap ae ap min max mm 6,0 8,0 10,0 12,0 14,0 16,0 18,0 20,0 25,0 5 1,5 x D 0,5 x D 1xD 60 100 Fz 0,029 0,040 0,048 0,056 0,063 0,070 0,076 0,081 0,091 P 6 1,5 x D 0,5 x D 0,75 x D 50 75 Fz 0,025 0,034 0,040 0,047 0,052 0,057 0,061 0,065 0,071 1 1,5 x D 0,5 x D 1xD 120 150 Fz 0,044 0,060 0,072 0,083 0,092 0,101 0,108 0,114 0,124 K 2 1,5 x D 0,5 x D 1xD 110 140 Fz 0,036 0,050 0,061 0,07 0,079 0,087 0,095 0,101 0,114 3 1,5 x D 0,5 x D 1xD 110 130 Fz 0,029 0,040 0,048 0,056 0,063 0,070 0,076 0,081 0,091 1 1,5 x D 0,3 x D 0,3 x D 50 90 Fz 0,036 0,050 0,061 0,07 0,079 0,087 0,095 0,101 0,114 2 1,5 x D 0,3 x D 0,3 x D 25 40 Fz 0,019 0,026 0,032 0,037 0,042 0,046 0,050 0,054 0,061 S 3 1,5 x D 0,3 x D 0,3 x D 25 40 Fz 0,019 0,026 0,032 0,037 0,042 0,046 0,050 0,054 0,061 4 1,5 x D 0,5 x D 1xD 50 60 Fz 0,026 0,037 0,045 0,052 0,058 0,064 0,069 0,074 0,084 H 1 1,5 x D 0,5 x D 0,75 x D 80 140 Fz 0,033 0,045 0,054 0,062 0,070 0,077 0,083 0,088 0,098 NOTE: Lower value of cutting speed is used for high stock removal applications or for higher hardness (machinability) within group. Higher value of cutting speed is used for finishing applications or for lower hardness (machinability) within group. Above parameters are based on ideal conditions. For smaller taper machining centers, please adjust parameters accordingly on >12mm diameter. Side milling applications — for longest reach (L3) tools, reduce Ae by 30%. Slot milling applications — for longest reach (L3) tools, reduce Ae by 30%. SOLID END MILLING HARVI II UCDE & UDDE Adjustment Factor for Feed and Speed Calculation Ae/D 2% 4% 5% 8% 10% 12% 20% 30% 40% 50% 100% Speed factor Kv 2,1–3,6 1,6–3 1,6–2,5 1,6 1,4 1,38 1,3 1,2 1,1 1 0,9 Feed factor KFz 3,58 2,56 2,3 1,84 1,67 1,54 1,25 1,09 1,02 1 1 NOTE: For an Ae/D ratio of 5% or less there is a range given for speed factor Kv, which allows the user to either be more conservative at the lower value or more aggressive with the higher value. This can also be considered based on the machinability of the material, from difficult to free cutting. These calculations are for roughing/semi-finishing cuts when used with the recommended base Fz. For light finishing cuts requiring improved surface quality it is recommended to reduce the base Fz approximately 50% and then apply these factors. To calculate application-specific cutting data, please use Kv coefficient Calculation example: Final cutting data recommendation: table above for adaptation of cutting speed and KFz for feed respectively. Application: D = 20mm, HARVI II UCDE; Vc new = 80 * 1,4 = 112 m/min M2 material group; Fz new = 0,089 * 1,67 = 0,15 mm/min Vc new = Vc * Kv Ae = 2mm Fz new = Fz * KFz Cutting data recommendation: Vc = 80 m/min; Fz = 0,089 mm/th Adjustment coefficients: Ae = 2mm equals 10,0%; Kv = 1,4; KFz = 1,67 C29 kennametal.com