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- 1. 朋友 , 為何 CNC 加工不賺錢
- 2. 不解決傳統刀具路徑的 3 個問題 , 賺不到錢 400NTD./Hr 1 刀具過負載 (路徑途中無法預測的變化負載 ) 2 沒有效率的空刀 (效率流失 ) 非切線連續的刀具路徑 3 (( 刀具移動的前後路徑具有角度關係
- 3. 典型的路徑 , 典型的問題發生在那裡呢 ?
- 4. 標準路徑 : 一致的橫移距離 , 一致的加工進給 使用刀具徑 50% 作為橫 移距離
- 5. 刀具過載 : 發生在往外圈或往內圈移動時 , 或進入狹溝時 100% 刀具徑
- 6. 甚至更糟的情形 : 刀具被材料包夾到超過刀具的強度 100% 刀具徑 刀具總是在這裡斷 ?掉
- 7. 為避免刀具過載 , 多年經驗的你 , 只有二個策略 .1 軸向一層的深度小一點 .2 橫移的距離小一點 刀具夾那麼長幹甚 ?麼
- 8. 瞭解了嗎 ? 錢是你丟掉的 ! .1 軸向一層的深度小一點 , 加倍加工時間 .2 橫移的距離小一點 , 加倍加工時間 .3 刀具斷掉 , 停止加工的風險還只是降低而已
Editor's Notes
- We will examine 3 of the problems with typical tool paths. Over engaged tools(unpredictable loads), cutting air (inefficient), non tangent tool paths.( sharp changes in the tool path)
- Let us take this aerospace component and add some typical tool paths with typical problems and then add iMachining tool paths to the same areas.
- Here is a standard tool path to machine this semi-open pocket using 50% step over. Everything looks fine here.
- But what about the load on the tool when actually cutting the part. Here we can see 100% step over even though we asked for 50%. This is over engaged and unpredictable outside simulation. This could result in a broken tool or excessive wear that could decrease the life of the tool.
- Look how the tool is over engaged for a longer period of time here. This situation is even worse then the previous move, the tool could easily flex and break in this situation.
- More depths means reduced load on the tool . But we are no longer using the entire flute length. Only the bottom of the tool is being used now. The bottom of the tool will obviously wear out before the rest of the tool. This is simply not efficient.
- More depths means reduced load on the tool . But we are no longer using the entire flute length. Only the bottom of the tool is being used now. The bottom of the tool will obviously wear out before the rest of the tool. This is simply not efficient.