發(fā)布時間：2018-01-20 15:07

  本文關鍵詞： 可轉(zhuǎn)位銑刀片 波形刃 銑削力 刀具磨損　出處：《華東理工大學》2017年碩士論文　論文類型：學位論文

【摘要】：波形刃銑刀作為一種新型高效高性能刀具,具有銑削力小、耐磨損性能好、加工穩(wěn)定性好、分屑效果好以及加工效率高等諸多優(yōu)點,因此廣泛應用于粗加工領域。由于波形刃結構的獨特性和復雜性,國內(nèi)對可轉(zhuǎn)位后波形刃銑刀片的研究較少。本文以可轉(zhuǎn)位后波形刃銑削刀片為研究對象,從銑削力、切屑形態(tài)、銑削振動和刀具磨損等方面對其銑削機理展開理論分析和實驗研究。首先從理論上分析了波形刃銑刀片的銑削作用機理和受力特點,并建立了波形刃銑刀的銑削力數(shù)學模型和銑削加工動力學模型。其次研究了銑削參數(shù)對波形刃銑刀片銑削力和銑削振動的影響規(guī)律,獲得了銑削力的經(jīng)驗模型。實驗結果表明:1)銑削力和銑削振動位移隨每齒進給量、軸向切深和徑向切深的增大而增大,垂直于進給方向的振動隨銑削速度的增大而減小;進給量對銑削力的影響最大,銑削速度對銑削力和進給方向振動的影響很小。2)在相同條件下,與直線刃銑刀片相比,波形刃銑刀片的銑削力減少了 10%～20%,且具有更好的加工穩(wěn)定性;波形刃具有良好的分屑作用,其切屑為細小的鱗片狀。最后對比研究了波形刃和直線刃銑刀片刀具磨損。實驗結果表明:與單齒銑削相比,采用雙齒銑削時,波形刃銑刀片的耐磨性能明顯提高,且明顯優(yōu)于直線刃銑刀片。本論文的研究工作為結構復雜的可轉(zhuǎn)位銑削刀片的開發(fā)和刀具性能的改善提供了一定的理論依據(jù)和指導。
[Abstract]:As a new type of high efficiency and high performance cutting tool, wavy edge milling cutter has many advantages, such as low milling force, good wear resistance, good machining stability, good chip separation effect and high machining efficiency. Therefore, it is widely used in rough machining field. Because of the unique and complexity of waveform edge structure, there is less research on indexable post-waveform edge milling cutter in China. In this paper, the indexable post-waveform edge milling blade is taken as the research object. Theoretical analysis and experimental study on milling mechanism are carried out from milling force, chip shape, milling vibration and tool wear. Firstly, the milling mechanism and mechanical characteristics of corrugated milling cutters are analyzed theoretically. The milling force mathematical model and milling dynamic model are established. Secondly, the effects of milling parameters on milling force and milling vibration of corrugated milling cutters are studied. The experimental results show that the milling force and milling vibration displacement increase with the increase of feed, axial and radial depth. The vibration perpendicular to the feed direction decreases with the increase of milling speed. The effect of feed rate on milling force is the biggest, and the effect of milling speed on milling force and feed direction vibration is very small. 2) under the same conditions, compared with linear edge milling cutters. The milling force of the corrugated edge milling cutter is reduced by 10% and 20%, and has better processing stability; The corrugated edge has a good chip separation effect, and the chip is small scale. Finally, the wear of the wavy edge and the linear edge milling cutters is compared. The experimental results show that: compared with the single-tooth milling, the double-tooth milling is used. The wear resistance of corrugated edge milling cutters is improved obviously. The research work in this paper provides some theoretical basis and guidance for the development of indexable milling blade with complex structure and the improvement of tool performance.
【學位授予單位】：華東理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TG714

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本文編號：1448644