The selection of parameters in aluminum alloy processing is a key factor that affects the efficiency and quality of aluminum alloy parts processing
reducing manufacturing costs and improving equipment service life. Multi-objective optimization of the parameters of 6061 aluminum alloy milling process was studied. With the five process parameters of spindle speed
feed speed
axial feed
radial feed and tool diameter as experimental factors
a five-factor and five-level orthogonal experiment of 6061 aluminum alloy high-speed milling was performed. The experimental results were analyzed by GA-BP prediction model to
establish the non-linear relationship between milling parameters and surface roughness. On this basis
a multi-objective optimization model was developed aiming at the maximum material removal rate and the lowest surface roughness
and the model was solved by the gamultiobj function based on the NSGA-II algorithm. The results show that the optimized process parameters of 6061 aluminum alloy high-speed milling range at the spindle speed of 12000~13000 r·min
–1
with radial feed of 0.19~0.21 mm
feed speed of 1272~1300 mm·min
–1
axial feed of 6~8 mm
and tool diameter of 4 mm.
关键词
Keywords
references
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