İşleme Kesme-İlerleme Zamanı Hesap Çizelgesi
Belgelenmiş bir ilerleme yolu mesafesini belgelenmiş doğrusal ilerlemeye bölün veya bir torna geçişi için devir başına ilerlemeyi sabit iş mili devri ile çarpın. Hesap çizelgesi yalnızca girilen kesme ilerlemesinde hareket edilen süreyi tahmin eder.
Tekrarlanan bir ilerleme hareketi durumunu belgeleyin
Önce birimleri ve modeli seçin. Seçicilerden herhangi birini değiştirmek, zaten girilen sayıları dönüştürmez—yorumlar. Geçişler farklı uzunluklara veya ilerlemelere sahipse, bunları ayrı ayrı hesaplayın ve sürelerini toplayın.
Toplam kesme-ilerleme zamanı
Eşit geçiş başına süre
Geçiş başına ilerleme mesafesi
Etkin doğrusal ilerleme
Eşit geçişler
Model
Denklemler ve birimler
| Model | Denklem | Gerekli yorum |
|---|---|---|
| Geçiş başına mesafe | Lm=L+Lek,ilerleme | Her iki mesafe de aynı girilen kesme ilerlemesinde kat edilir. Hızlı boşaltma hariç tutulur. |
| Belgelenmiş doğrusal ilerleme | ther biri=Lm/vF | Mesafe ve ilerleme aynı uzunluk birimini kullanmalıdır; sonuç dakikadır. |
| Sabit hızda torna | vF=fnn; ther biri=Lm/(fnn) | Fn is length/rev and n is rev/min. Constant n and a single feed direction/path are assumed. |
| Repeated identical traverses | ttoplam=N ther biri | N is a positive integer. For unequal segments use ttoplam=ΣLi/vi. |
Internal working distances use millimetres. Exact conversion:1 international inch=25.4mm. Minutes and seconds use exactly60s/min.
Düzeltilenler
The former page called the result “total machining time” while correctly admitting elsewhere that rapid positioning,tool changes and idle time were absent. The result is now consistently labelled cutting-feed time. “Approach distance” was also said to include rapid clearance,but the code added all of it at the cutting feed. The replacement input accepts only additional distance actually traversed at that same feed.
Negative additional distance,negative or fractional passes,numeric prefixes such as 200mm and silent fallback to one pass were formerly accepted. Strict whole-value validation now rejects them. Fixed 2–5mm guidance,pre-filled examples,quick presets and generic advice to increase speed/feed were removed because safe cutting data depend on the workpiece,tool,engagement,holder,fixture,machine,coolant and production objective.
Kaynak ve uygulanabilirlik sınırı
Sandvik Coromant,Formulas and definitions for turning—metric publishes Tc=lm/(fnn) with lm in mm,fn in mm/rev,n in r/min and Tc in minutes. Its milling metric sheet defines table feed vF=fznzc;the inch sheet uses the equivalent inch/min convention.
Kennametal’s official speed/feed calculator states that theoretical calculations are for planning and actual results vary;its guidance also ties suitable data to the material,tool,machine and workholding. This worksheet therefore does not recommend a feed or cutting speed.
Manufacturing Processes-I Virtual Lab published example uses a150mm turning length,0.4mm/rev and500r/min,obtaining t=150/(0.4×500)=0.75min. That example is included in the independent test set. The arithmetic is general engineering kinematics,not a formula attributed to ISO.
Use a different model when
- Turning uses constant surface speed or RPM changes materially during facing,contouring or diameter change.
- Toolpath segments have different feeds,feed limits,arc corrections,ramps or controller look-ahead effects.
- Multiple passes have different distances,feeds or entry/exit motions.
- The desired result is quote/cycle time rather than ideal motion time at cutting feed.
