Radius Tools
Our radius tools are designed and made-to-order to meet your specific requirements.
Here is a quick breakdown of factors to consider when determining what tool you need:
Clearance Shape
Conical
The optimal choice for controlled
waviness
tools with a neutral top
rake.
Radius size
gets slightly smaller with each
relap.
Cylindrical
Edge radius will have a somewhat
elliptical
shape.
Radius size
stays the same,
relap
after relap.
Hybrid
This is a combination of
conical
and
cylindrical
shapes.
Angles
Clearance Angle
Clearance angle is an important specification on every tool.
The clearance depends on the geometry the tool will cut, as well as the
material
of the workpiece.
Clearances from 5° to 15° are common and clearances up to 45° can be achieved, if necessary.
Top Rake Angle
Top rake angle depends on the workpiece
material.
Crystalline materials need steep negative rakes.
Softer materials require slightly positive or neutral rakes.
Rake angles can range from +5° to -45°.
0° rake is most common.
Included Angle
The included angle dictates the maximum sweep or window for the tip radius.
The angle is chosen based on the workpiece geometry and is typically 35° to 75°.
Tools with included angles as small as 10° can be made when needed and even smaller in some cases.
Radius Size
Radius size is chosen based on workpiece geometry and
surface finish requirements.
We produce radius sizes from 1 micron to 100mm.
Waviness
Controlled waviness tools can have peak-to-valley waviness of 0.50μm, 0.25μm, 0.10μm, or even down to 0.05μm (50nm).
Window
Window (or sweep) is also determined by workpiece geometry.
100° is the most common window size and they can be up to 160°.