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微細放電加工學
Experimental and numerical investigation of the
effect of spray cutting fluids in high speed milling
Advisor: 戴子堯
Advisee: 呂政泰
Number: M9510244
Date ﹕2007-06-12
Outline
1. Experimental design
2. Emulsion Oil of parameter
3. Position of the nozzle relation
4. Experimental result
5. Conclusions
Experimental design
The MQL system detailed design
pressure regulator
frequency meter
pump
nozzle
Emulsion Oil of parameter
Characteristics of the used lubricants :
emulsion coolant and biodegradable oil，
without water mixture
Table 1
Position of the nozzle relation
Other relation positions have been rejected
because of possible interference between
the workpiece and the MQL flow.
Experimental result(1/4)
Experimental result(2/4)
These different tool wears are due to the fact that in
the 45° position the cutting fluid does not completely
penetrate in tool edges，on the contrary ，the 135°
position allows the MQL jet reaching the tool edges.
Experimental result(3/4)
45°of experimental result
Experimental result(4/4)
135°of experimental result
Conclusions
1.The emulsion coolant is inefficient in high speed
milling ，because it is not able to reach the inner
zones of the tool teeth .
2.The MQL flow penetrates in the cutting zone and it
acts in three different ways，that is ，cooling tool
and workpiece ，lubricating and removing the chips .
3.使用MQL流率系統，在模擬狀況下，冷卻液消耗率為
0.06㎝3/min相當於每小時才消耗3.6 ㎝3
Thanks for your attention
END