Ball Mill Surface Finish

The fake ball nose dia calc is designed to give you an accurate calculation of the adjusted diameter for calculating surface finish.

Ball mill surface finish. Calculate the amount of material removal required to obtain g spec balance for milling applications. The tool radius on each side of the cut will leave stock referred to as a scallop. The finish of the part will be determined by the height of the scallop amd the scallop will be determined by the stepover distance. A 45 degree face mill produces a much nicer finish than a 90 degree square shoulder face mill.

The surface finish calculator also includes a stepover adjustment calculator for internal and external radii. And positive rake all lead to better surface finish. If your after a real good surface finish and you feel the part geometry needs to be surfaced with a ball endmill a very good alternative is the flat ball from lmt fette. Ball nose milling without a tilt angle.

As a result a small cusp of material called a scallop will remain between these cuts on any surrounding walls or on the machined surface if a ball end mill is used. A smaller ball interpolated exposes more of the surface to a. Calculate surface finish when using a ball nose end mill. Simply tell it you have a ballnosed endmill and the surface finish calculator appears at the bottom.

Remember the part of the ball near the axis moves slowly. It is basically a ball endmill with a very tiny flat cutting portion on the nose to avoid the zero surface feet at the tip for example a 6mm dia ball has around a 1mm flat. The ball mill finish calculator can be used when an end mill with a full radius a ball mill is used on a contoured surface. But it gets even better.

Calculate surface finish when using a ball nose end mill. Calculate tangential force torque and machining power for end milling applications. G spec balance formula. Give it a specific scallop height and it will tell you the stepover needed to achieve it as well as the resultant ra and rms surface finish.

Ball nose end mills are ideal for machining 3 dimensional contour shapes typically found in the mold and die industry the manufacturing of turbine blades and fulfilling general part radius requirements to properly employ a ball nose end mill with no tilt angle and gain the optimal tool life and part finish follow the 2 step process below see figure 1. Force torque and power. Calculate surface finish when using a ball nose end mill. Ball nose surface finish.