Technical Data Troubleshooting in Milling 搠⏙␯⽴䛿⿇┮⡯╙⶜䳥 Trouble / ㉔㹐 Occurrences / ┮⡯ Countermeasures / ⶜䳥 Too high feed Reduce feed 懁仵捞⪹⪶ 柜⃝懁仵捞 Up milling Change down milling 憕搠虃■ᾙ⎖⏙虄 榕搠虃■ᾚ⎖⏙虄 Sharp cutting edgeChipping⎖⏙⎒⪹摡⎸ Honing at the cutting edge-chamfering or roundingif neededⅽ䩷⎖⏙⎒ - ㅔ嬐㟑↡孡㎥↡⢢ ⺸⎒ Chattering Check spindle speed down 梖⑤ ■ᾚ屎㜃Ὴ悇惘憮 Too much overhang Adjust to minimize overhang ⎏⌆䰐⎉捞⪹朆 ⶖ⎏⌆䰐⎉捞屎㜃䉉㢏⶞ 8Q¿[HGFKXFNLQJRI(QGPLOO Check the precision of chuck and collet 搠⎏㢺䏱⢉⫍余 屎㜃⫍㹊⌆乍〵 High Cutting speed Decrease cutting speed ⎖⏙憮〵懝汧 㾪⃝⎖⏙憮〵 Low feed Increase feed Wear 懁仵捞⪹⶞ ⨭␯懁仵捞 䩷㖜 Up milling Down milling 憕搠虃■ᾙ⎖⏙虄 榕搠虃■ᾚ⎖⏙虄 High-hardened work piece Choosing special coating endmill 㣟幹䧻〵懝汧 戇䚷䐈㴙擜匫䠓搠⎏ Too much cutting amount Decrease cutting amount ⎖⏙捞⪹⪶ 㾪ⶠ⎖⏙捞 Tool Breakage High cutting force Feed down; spindle speed up ⎏⌆㐧㝆 ⎖⏙␪懝⪶ 柜⃝懁仵虖㕟汧惘憮 Too much overhang Adjust to minimize overhang ⎏⌆䰐⎉捞⪹朆 ⶖ⎏⌆䰐⎉捞屎㜃䉉㢏⶞ Chattering Change the cutting condition 梖⑤ 㛈崙⎖⏙㨬₅ Surface Roughness Generation of built-up edge㔡ⷠᾜ叾姷棱並乨〵 Increasing cutting speed & Feed rate or downmilling㕟㞖⎖⏙憮〵 & 懁仵䔖㎥榕搠 high feed, low speed Reduce feed & Increase speed 汧懁仵虇⃝⎖⏙憮〵 柜⃝懁仵㕟汧⎖⏙憮〵 ,QFRUUHFW1XPEHUVRIÀXWH 5HSODFHPRUHÀXWHV(QGPLOO $FFXUDF\RI¿QLVKHG ⎒㜇ᾜ⪯ 㢃㕪⪩⎒搠⎏ work piece 'HÀHFWLRQRI7RRO Using big diameter tool & Minimize the overhang ␯⽴乍〵 ⎏⌆⇞⽽ ℎ䚷⪶⎒ㄠ☛䰐⎉捞㾪厂㢏⶞