# Surface roughness of imperceptible milling surface is forecasted with the experiment

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- source:ELAND CNC Machining

2 μ M. Raise milling rate to be affected to reducing exterior surface roughness it is thus clear that remarkable. (2) graph 30 μ of ＝ of the 3 P that it is α M, cut namely deeply below condition of 0 levels cutting, the response of milling rate and every tine feed to exterior surface roughness curved surface. In ＝ of V of low milling rate 18.

84m ／ Min, along with the addition of every tine feed, exterior surface roughness is worth change not remarkable. Dan Zaixi is cut when rate is older, exterior surface roughness is affected along with the addition of every tine feed remarkable. In milling rate when Min of ／ of 40 ～ 50m, exterior surface roughness is worth stability to be in 0.

Inside 4 μ M, the effect that suffers other parameter is lesser, right now, can acquire stabler treatment surface quality. (3) graph 4 for V ＝ when Min of ／ of 37 68m, namely milling rate falls for condition of 0 levels milling, the response of cutting deepness and every tine feed to exterior surface roughness curved surface. Curve degree to be able to see from what answer curved surface 2 times, the addition of cutting deepness and every tine feed makes the value increases exterior surface roughness significantly, among them cutting deepness ages than every to the influence of exterior surface roughness feed wants many remarkable, cutting be worth the least state of affairs greatly to fall with every tine feed, can obtain the smallest surface surface roughness to be worth. 5 conclusion (1) be based on orthogonality to return to what the law answered curved surface law to build surface roughness of the surface below imperceptible milling condition respectively with 2 to forecast a model, undertook relevant experiment studies, via examining 2 times to answer curved surface model to have inside experiment condition taller degree of confidence is mixed practical, forecast precision and method of regression of orthogonality of as apparent as the registration of actual result excel, comfortable be forecasted at cutting parameter choosing to undertake optimizing to exterior surface roughness before treatment and control as a result. (2) the significance of 2 the linear effect that analysed milling parameter to affect exterior surface roughness through answering curved surface 2 times to forecast model and test result, effect and alternant effect. Compare integratedly, imperceptible milling is affected to exterior surface roughness in 3 cutting parameter bigger is milling rate, it is every tine feed next, cutting deepness is the weakest to the influence of exterior surface roughness. Below experiment condition, raise milling rate, reduce every tine feed and cutting deepness to be able to reduce surface roughness of imperceptible milling surface effectively to be worth. (3) the exterior surface roughness that is based on orthogonality to rotate 2 times when combine a design to answer curved surface law to build forecasts a model, in have taller degree of confidence while, can add the information content of the experiment effectively, rise forecast precision, reduce experiment number, this kind of method also can be used at building to forecast a model otherly, but must notice its suitable scope. CNC Milling