Общий каталог Tungaloy 2020 - 2021 - страница 1654

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Parts for ToolsTechnicalReference User’s Guide - Technical Reference Solid Carbide Endmills Tr o u b l e shooting in Endmilling Trouble Possible causes Countermeasures ¡Reduce feed. ¡At the start of machining ¡Reduce tool overhang length. ¡At the end of machining ¡Exchange to short cutting edge tool. ¡Reduce feed. ¡Managing tool life / Exchange in shorter time. ¡Replace chuck or collet to new one. Breakage When usual machining ¡Reduce tool overhang length. ¡Make optimum honing on the edge. ¡Reduce flutes. E.g. 4 flutes / 3flutes, or 2flutes. ¡Use enough coolant. Change direction of supplying coolant. ¡Use the circular interpolation in NC machine. Stop feed shortly before changing. When change the direction ¡Lower feed around changing part. of feed ¡Replace chuck or collet to new one. ¡Chamfer the corner with hand-stick grinder. Chipping on corner edge ¡Down cutting 㱺 Upward milling. ¡Change cutting direction, Down cutting / Upward milling. Chipping on boundary part ¡Reduce cutting speed. ¡Make slight honing on the edge. Or make honing bigger. ¡Change spindle revolution number. Chipping on central part or ¡Increase cutting speed. all edges. ¡If chattering, increase feed. ¡Use coolant or air blast. Fracture on ¡Replace chuck or collet to new one. cutting edge ¡Decrease cutting speed. ¡Decrease feed. ¡Reduce flutes. E.g. 4 flutes / 3flutes, or 2flutes. ¡Make slight honing on the edge. Or make honing bigger. Fracture on cutting edge ¡Replace chuck or collet to new one. 【For Solid carbide endmill】 ¡Decrease cutting speed. ¡Use enough coolant. Change direction of supplying coolant. ¡Decrease cutting speed. Large wear in ¡Change cutting direction, Upward milling / down cutting.¡Increase feed. short time ¡Use coolant or air blast. ¡In reground tool, grind flank face with FINER wheel. (Continued on next page) L066 www.tungaloy.com