Kaba i\u015flemede \u00fcretkenlik genellikle iyile\u015ftirilir, ancak ekonomi ve i\u015fleme maliyeti de dikkate al\u0131nmal\u0131d\u0131r; yar\u0131 fini\u015f i\u015fleme ve fini\u015f i\u015flemede, i\u015fleme kalitesinin sa\u011flanmas\u0131 \u00f6nc\u00fcl\u00fc\u011f\u00fcnde kesme verimlili\u011fi, ekonomi ve i\u015fleme maliyeti g\u00f6z \u00f6n\u00fcnde bulundurulmal\u0131d\u0131r. Spesifik de\u011fer, tak\u0131m tezgah\u0131 k\u0131lavuzuna, kesme verileri k\u0131lavuzuna ve deneyime g\u00f6re belirlenmelidir.<\/strong><\/strong><\/p>\n\n\n\n
Tak\u0131m \u00f6mr\u00fcnden ba\u015flayarak, kesme parametrelerinin se\u00e7im s\u0131ras\u0131 \u015f\u00f6yledir: \u00f6nce geri beslemeyi belirleyin, ard\u0131ndan ilerlemeyi belirleyin ve son olarak kesme h\u0131z\u0131n\u0131 belirleyin.<\/strong><\/strong><\/p>\n\n\n\n
(1) \u0130\u015f par\u00e7as\u0131n\u0131n y\u00fczey p\u00fcr\u00fczl\u00fcl\u00fc\u011f\u00fcn\u00fcn Ra12,5 \u03bcm ~ 25 \u03bcm olmas\u0131 gerekti\u011finde, NC i\u015flemenin i\u015fleme pay\u0131 5 mm ~ 6 mm'den azsa, bir kaba i\u015fleme beslemesi gereksinimleri kar\u015f\u0131layabilir. Bununla birlikte, pay b\u00fcy\u00fck oldu\u011funda, i\u015flem sisteminin sertli\u011fi zay\u0131f oldu\u011funda veya tak\u0131m tezgah\u0131n\u0131n g\u00fcc\u00fc yetersiz oldu\u011funda, besleme birka\u00e7 kez tamamlanabilir.<\/strong><\/strong><\/p>\n\n\n\n
(2) \u0130\u015f par\u00e7as\u0131n\u0131n y\u00fczey p\u00fcr\u00fczl\u00fcl\u00fc\u011f\u00fcn\u00fcn 3,2 \u03bcm ile 12,5 \u03bcm aras\u0131nda olmas\u0131 gerekti\u011finde, kaba i\u015fleme ve yar\u0131 fini\u015f i\u015fleme olarak ikiye ayr\u0131labilir. Kaba i\u015flemede geri kesme miktar\u0131 eskisi ile ayn\u0131d\u0131r. 0.5mm ~ 1.0mm tolerans\u0131 kaba i\u015flemeden sonra b\u0131rak\u0131lacak ve yar\u0131 son i\u015fleme s\u0131ras\u0131nda kesilecektir.<\/strong><\/strong><\/p>\n\n\n\n
(3) \u0130\u015f par\u00e7as\u0131n\u0131n y\u00fczey p\u00fcr\u00fczl\u00fcl\u00fc\u011f\u00fcn\u00fcn Ra0.8 \u03bcm ~ 3.2 \u03bcm olmas\u0131 gerekti\u011finde, \u00fc\u00e7 ad\u0131ma ayr\u0131labilir: kaba i\u015fleme, yar\u0131 ince i\u015fleme ve ince i\u015fleme. Yar\u0131 finisaj i\u00e7in 5 mm ~ 2 mm. Bitirirken, arka b\u0131\u00e7ak 0,3 mm ~ 0,5 mm'dir.<\/strong><\/strong><\/p>\n\n\n\n
Besleme h\u0131z\u0131 esas olarak par\u00e7alar\u0131n i\u015fleme do\u011frulu\u011fu ve y\u00fczey p\u00fcr\u00fczl\u00fcl\u00fc\u011f\u00fc gereksinimlerinin yan\u0131 s\u0131ra tak\u0131mlar\u0131n ve i\u015f par\u00e7alar\u0131n\u0131n malzeme se\u00e7imine dayan\u0131r. Maksimum besleme h\u0131z\u0131, tak\u0131m tezgah\u0131n\u0131n sertli\u011fi ve besleme sisteminin performans\u0131 ile s\u0131n\u0131rl\u0131d\u0131r.<\/strong><\/strong><\/p>\n\n\n\n
1) \u0130\u015f par\u00e7as\u0131n\u0131n kalite gereksinimleri garanti edildi\u011finde, \u00fcretim verimlili\u011fini art\u0131rmak i\u00e7in daha y\u00fcksek bir besleme h\u0131z\u0131 se\u00e7ilebilir. Genellikle 100-200m\/dk aral\u0131\u011f\u0131nda se\u00e7ilmektedir.<\/strong><\/strong><\/p>\n\n\n\n
2) Keserken, derin delik i\u015flerken veya y\u00fcksek h\u0131z \u00e7eli\u011fi tak\u0131mla i\u015flerken, genellikle 20 ~ 50M \/ dak aral\u0131\u011f\u0131nda daha d\u00fc\u015f\u00fck bir besleme h\u0131z\u0131 se\u00e7mek daha iyidir.<\/strong><\/strong><\/p>\n\n\n\n
3) \u0130\u015fleme do\u011frulu\u011fu ve y\u00fczey p\u00fcr\u00fczl\u00fcl\u00fc\u011f\u00fc gereksinimleri y\u00fcksek oldu\u011funda, besleme h\u0131z\u0131 genellikle 20 ~ 50M \/ dak aral\u0131\u011f\u0131nda daha k\u00fc\u00e7\u00fck olmal\u0131d\u0131r.<\/strong><\/strong><\/p>\n\n\n\n
4) Tak\u0131mda strok olmad\u0131\u011f\u0131nda, \u00f6zellikle uzun bir mesafede s\u0131f\u0131ra d\u00f6nd\u00fc\u011f\u00fcnde, tak\u0131m tezgah\u0131n\u0131n NC sistemi taraf\u0131ndan ayarlanan maksimum besleme h\u0131z\u0131 se\u00e7ilebilir.<\/strong><\/strong><\/p>\n\n\n\n
Mil h\u0131z\u0131, izin verilen kesme h\u0131z\u0131na ve i\u015f par\u00e7as\u0131 (veya tak\u0131m) \u00e7ap\u0131na g\u00f6re se\u00e7ilmelidir. Hesaplama form\u00fcl\u00fc a\u015fa\u011f\u0131daki gibidir:<\/strong><\/strong><\/p>\n\n\n\n
V — cutting speed, M \/ min, determined by tool life;<\/strong><\/strong><\/p>\n\n\n\n
N — spindle speed, unit: R \/ min;<\/strong><\/strong><\/p>\n\n\n\n
D — diameter of workpiece or cutter, unit: mm.<\/strong><\/strong><\/p>\n\n\n\n
Son olarak, tak\u0131m tezgah\u0131n\u0131n talimatlar\u0131na g\u00f6re i\u015f milinin n h\u0131z\u0131 se\u00e7ilmelidir.<\/strong><\/strong><\/p>\n\n\n\n
K\u0131sacas\u0131, kesme parametrelerinin \u00f6zel de\u011feri, makine performans\u0131na, ilgili k\u0131lavuzlara ve pratik deneyime g\u00f6re benzetme yoluyla belirlenmelidir. Ayn\u0131 zamanda, en iyi kesme parametrelerini olu\u015fturmak i\u00e7in i\u015f mili h\u0131z\u0131, kesme derinli\u011fi ve ilerleme h\u0131z\u0131 birbirine uyarlanabilir.<\/strong><\/strong><\/p>\n\n\n\n