VT^n=C relates cutting speed and tool life.
VTⁿ=C where V cutting speed, T tool life (min), n exponent (HSS 0.1–0.15, carbide 0.2–0.4, ceramic 0.5–0.7). Increasing speed 20% can halve tool life. Economic cutting speed balances tool cost, machine time and changeover. Criteria: flank wear VB=0.3 mm.
With n=0.25, doubling speed reduces life to 1/16.
The Taylor equation relates tool life to cutting speed, so it helps choose a speed that balances productivity and tool cost.
VT^n=C relates cutting speed and tool life.
The Taylor equation relates tool life to cutting speed, so it helps choose a speed that balances productivity and tool cost.
Cutting speed multiplied by tool life raised to a constant power equals a constant, so higher speed sharply reduces tool life.
It describes how strongly tool life falls as cutting speed rises, and it depends on the tool and workpiece pair.
Typical applications include choosing the cutting speed that gives a 60 minute tool life on a turning job, comparing the cost of changing tools frequently against running slower and estimating the effect of raising speed by ten percent on tool life.
Study "Cutting tool materials" first (topic 22 of 102 in Manufacturing, Robotics & Systems). It covers the groundwork this topic builds on.
Wear mechanisms. Minimum cost vs maximum production rate. Extended Taylor with feed and depth.
With n=0.25, doubling speed reduces life to 1/16.
The next topic is "Non-traditional machining", which builds directly on this one.
It is classed as Beginner in Manufacturing, Robotics & Systems (topic 23 of 102). It is an entry-level topic. It relies only on basic school mathematics and the ideas introduced earlier in this discipline.
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