Chip Load and Feed Rate Calculator
Perfecting the Cut!
Tool Diameter | Hard Wood | Softwood And Plywood | MDF/ Particle Board | High Pressure Laminate | Phenolic |
|---|---|---|---|---|---|
| 1/8” | .003” – .005” | .004” – .006” | .004” – .007” | .003” – .005” | n/a |
| 1/4” | .009” – .011” | .011” – .013” | .013” – .016” | .009” – .012” | .004” – .006” |
| 3/8” | .015” – .018” | .017” – .020” | .020” – .023” | .015” – .018” | .006” – .008” |
| 1/2” & up | .019” – .021” | .021” – .023” | .025” – .027” | .023” – .025” | .010” – .012” |
|
Tool Diameter |
Hard Plastic |
Soft Plastic |
Solid Surface |
Acrylic |
Aluminium |
|---|---|---|---|---|---|
| 1/8” | .002” – .004” | .003” – .006” | .002” – .004” | .003” – .005” | .003” – .004” |
| 1/4” | .006” – .009” | .007” – .010” | .006” – .009” | .008” – .010” | .005” – .007” |
| 3/8” | .008” – .010” | .010” – .012” | .008” – .010” | .010” – .012” | .006” – .008” |
| 1/2” & up | .010” – .012” | .012” – .016” | .010” – .012” | .012” – .015” | .008” – .010” |
Our chipload and feedrate calculator provides two methods for identifying optimal feed speeds and RPM as it relates to chipload. We strongly encourage anyone with questions surrounding chipload or feeds and speeds to give us a call at 770.282.1156 or email us at info@qic.tools for assistance!
A few important considerations:
- The chip load calculator on the left is used when you have a target chip load in mind.
- The chip load calculator on the right shows the the optimal feed rate for your entered chip load. You can see the chip load target from the table above based on your tool diameter and material.
- The presented feed rate is for peripheral or trimming cuts, reduced feed rate by 20% if cutting depth is greater than the diameter of the tool.
- If cutting depth is 3 or more X the diameter of the tool reduce the result by 50%
Chipload and Feed Rate FAQ
What is chip load, and why is it important in CNC woodworking?
Chip load refers to the thickness of material removed by each cutting edge of a tool during machining. It is crucial in CNC woodworking as it influences tool performance, surface finish, and overall efficiency.
How is chip load calculated in CNC machining for wood?
Chip load is calculated by dividing the feed rate (how fast the tool moves through the material) by the spindle speed (the tool’s rotational speed). The result is the thickness of material removed per cutting edge engagement.
Why is finding the right chip load important for CNC wood machining?
Achieving the right chip load is vital for optimizing tool life, minimizing tool wear, and obtaining a high-quality surface finish. It ensures efficient material removal without overloading the tool or compromising the end product.
What happens if the chip load is too high in CNC wood machining?
A chip load that is too high can lead to excessive tool wear, heat generation, and even tool breakage. It may also result in a poor surface finish and negatively impact the overall precision of the machining process.
How does chip load affect the choice of cutting tools in CNC wood machining?
The appropriate chip load helps determine the ideal cutting tool for a specific CNC wood machining application. It influences decisions regarding tool geometry, material composition, and the overall tool design to ensure optimal performance.
Can chip load vary for different types of wood in CNC manufacturing?
Yes, chip load requirements can vary based on the type and hardness of wood being machined. Softer woods may allow for a higher chip load, while harder woods may require a lower chip load to avoid excessive tool wear.
How can I adjust chip load in CNC woodworking?
Chip load can be adjusted by modifying the feed rate, spindle speed, or a combination of both. Experimentation and referring to tool manufacturer recommendations can help fine-tune chip load for specific CNC woodworking applications.
Are there recommended chip load values for common CNC woodworking tools?
Tool manufacturers often provide recommended chip load values for their products. It’s essential to consult the manufacturer’s documentation or contact them directly for specific recommendations based on tool type, material, and application.
Can chip load be too low in CNC wood machining?
Yes, a chip load that is too low can result in inefficient material removal, poor surface finish, and increased heat generation. It may also lead to chip recutting, where chips are not effectively evacuated from the cutting area.
How can I monitor and optimize chip load during CNC wood machining?
Regularly monitor tool performance, surface finish, and chip evacuation during machining. Adjust the feed rate and spindle speed as needed to optimize chip load, and consider using specialized software or consulting with experts for further optimization.