Solid Carbide Endmills B

TroublePossible causes Bright, but Wavy surfaceCountermeasures ¡Reduce feed per tooth. ¡Increase fl utes; E.g. 2 fl utes/3fl utes, or 4fl utes.
Poor surface fi ihSmall chips are welded on surface.¡Increase cutting speed. ¡Use coolant or air blast, or increase coolant. ¡Make slight honing on the edge. ¡Upward milling/Down cutting. ¡Increase feed per tooth. Increase Depth of Cut.
i nsScratches on the surface¡Make slight honing on the edge. ¡Use non-water soluble coolant. ¡Down cutting/Upward milling.
Poor surface by over cutting¡Reduce depth of cut. ¡Increase cutting speed. ¡Reduce feed per tooth.
Finish size becomes a minus tendency.¡Upward milling/Down cutting. ¡Reduce depth of cut. ¡Replace chuck or collet to new one. ¡Reduce overhang length. ¡Increase cutting speed.
Poor accuracyPoor straightness¡Reduce depth of cut. ¡Replace chuck or collet to new one. ¡Reduce overhang length. ¡Increase cutting speed. ¡Increase fl utes; E.g. 2 fl utes/4fl utes. ¡Reduce feed per tooth. ¡Check the edge. Change tool, when needed.
Chattering¡Increase feed per tooth. Reduce feed per tooth, when current feed is more than 0.07 mm/t. ¡Change cutting speed. ¡Replace chuck or collet to new one. ¡Reduce overhang length. ¡Use 2 fl utes tool in roughing. Use 4 fl utes tool in fi nishing. ¡Down cutting/Upward milling.

J

K

L

M