Laser Cutting Speed

MANUFACTURING – POWDER COATING, FINIHING & PAINTING CALCULATOR Laser Cutting Speed A precise tool.
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What is the Laser Cutting Speed & How does it work?
Laser cutting speed determines how quickly a sheet can be processed and is influenced by material properties, thickness, and the available laser power. Higher laser power and optimal beam efficiency allow faster cuts, but the material’s thermal conductivity and reflectivity also play crucial roles. By combining these factors into a single expression, manufacturers can estimate the feasible cutting speed for a given setup.
v = \frac{P \times \eta}{k_{m} \times t}
v = cutting speed (mm/min)
P = laser power (W)
\eta = system efficiency (0‑1)
k_{m} = material coefficient (W·mm⁻¹)
t = material thickness (mm)
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Parameters
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Frequently Asked Questions
How does laser power affect cutting speed?
Higher laser power generally allows for faster cutting speeds because it provides more energy to melt or vaporize the material.
What role does material thickness play in cutting speed?
Thicker materials require more time and energy to cut, resulting in lower cutting speeds compared to thinner materials.
How do I calculate the beam efficiency for laser cutting?
Beam efficiency is typically provided by the laser manufacturer and can be used directly in the formula as Ξ· (eta).
What is thermal conductivity, and why is it important in laser cutting?
Thermal conductivity measures how quickly heat moves through a material. Higher thermal conductivity means the material cools faster, potentially slowing down the cutting speed.
Can reflectivity of a material affect the cutting speed?
Yes, materials with high reflectivity can reflect some of the laser beam, reducing its effectiveness and potentially decreasing the cutting speed.
How do I adjust the formula for different materials?
To adjust the formula for different materials, substitute the specific values for thermal conductivity (k_m) and reflectivity into the equation.
What are some common units used in this laser cutting speed calculation?
Common units include mm/min for cutting speed, watts for power (P), and W/mmΒ² for beam efficiency (Ξ·).

Results are for informational purposes only and do not constitute professional advice.