本研究探討雷射加工製程中不同加工條件下對材料移除率之影響。首先在銑削加工中加入雷射來改善材料之切削性，探討有無雷射輔助銑削對加工穩定性的影響，並觀察雷射輔助加工前後對材料移除率的關係。根據實驗結果得知經過連續波雷射輔助後切向比切削係數明顯下降，並在銑削穩定性實驗中發現經過雷射輔助後其臨界切深有變大趨勢，因而在固定徑向切深與加工進給下有較佳之材料移除率。接著以不同雷射參數加工材料表面，觀察表面形貌並探討雷射加工參數對材料移除率之關聯性。由田口實驗可知對溝槽深度、寬度影響最大之因素為光斑進給，其次為峰值功率，最後為脈衝頻率；而材料移除率最大值發生在峰值功率、光斑進給及脈衝頻率皆最大處。

This study investigated the effect of different processing conditions on the laser machining material removal process. First, laser added to improve the Machinability in Laser-assisted milling experiments to explore the influence of laser-assisted milling on the processing stability and compared with the relationship of material removal rate without laser-assisted machining. According to cutting coefficients experiments, the tangential cutting coefficients decreased significantly with laser assisted milling, and the results of milling stability experiments found that using laser assisted most effective way to increased critical depth of cut, thus the case had a better material removal rate in same radial depth of cut and feed processing. Then laser machining experiments with different laser parameters processed material surface, to observe the surface morphology and to explore the relationship of laser processing parameters on material removal rate. Taguchi experiment shows that pulses feed rate effect depth and width of groove most, pulse frequency effect least, and peak power between them. The maximum of material removal rate occurs at peak power, pulse feed rate and pulse frequency is high.

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