Chamfer of root of P25 rotor leaf machines an experiment

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080, to knife, close solid. Show with two dial gauge on tool carrier transverse, fore-and-aft shift is worth. Pigheaded decide bolt closely, even if sneak away,chain board. The production of molded lines lathe tool because molded lines of foliaceous root chamfer is very complex, requirement of dimension public errand is much, very strict. Prove via relapsing, use the left and right sides lathe tool of total molded lines is more reasonable, can avoid a lot of relevant measure out of tolerance so, affect product quality. Cutting tool material chooses W18Cr4V/40Cr, the cutting part after heat treatment amounts to HRC63 ～ 66, if pursue,3 are shown. The experiment cutting means of cutting means and cooling fluid can adopt tangent and the first having the same consonant as the given character and the second having the same vowel and tone two kinds, choose more appropriate plan from inside a variety of cutting fluid, undertake machining an experiment finally. Below the condition that the experiment of cutting parameter maintains no less than falling long in intensity of molded lines lathe tool and cutting function, try V(m/s) of check cutting speed and feed S(mm/r) repeatedly. As a result of the N in 1000v PD type of N= 60 × -- main shaft rotate speed, r/min D -- the biggest diameter sums up workpiece cutting part namely the influence of N, S to cutting function, assure good surface roughness Ra1.

6, define optimal program finally. The influence of 2 tests result and appearance of cutting part of lathe tool of analytic molded lines and angle to cutting function pledges as a result of material relatively stick, hard, difficult treatment, to make lathe tool easily cutting, be about to beg the horn before its to answer bigger, at the same time to increase cutting blade strength, the horn after answering to just be elected as choose, before horny size. Integrated above asks, before horn, hind horn all is taken for 10 ° ± 10 relatively reasonable. Additional, molded lines is long, cut bits much, of face of the knife before be opposite wear away serious, because this undertakes to cutting tool cutting part chemical liquid medicine handles: "Iron bully " quench of chemical liquid medicine 48 hours. Experimental result, cutting tool service life raises 3 ～ 4 times. Cutting means and cutting fluid pass the spot to machine an experiment to the influence of cutting function, below identical cutting parameter, use a traditional method of indicating the pronunciation of a Chinese character by using two other Chinese characters to have the following advantage than tangent: A traditional method of indicating the pronunciation of a Chinese character by using two other Chinese characters raises the exterior surface roughness of foliaceous root chamfer effectively. As a result of a traditional method of indicating the pronunciation of a Chinese character by using two other Chinese characters cutting bits is direct slide downward, cannot the workpiece surface that cut already machined, this is its cutting function relatively the main reason of beautiful. A traditional method of indicating the pronunciation of a Chinese character by using two other Chinese characters can reduce the vibration of stage of cutting tool, knife, machine tool than tangent. Because molded lines is long, penetration of a cutting tool fights muscularity, oscillatory value also increases accordingly. In spot treatment two transverse, fore-and-aft dial gauge show, below identical cutting parameter, value of vibration of a traditional method of indicating the pronunciation of a Chinese character by using two other Chinese characters can get alleviating effectively. Prevent to machine exterior occurrence crackle not only so, raise surface roughness, and can reduce blade of point of a knife, cutting wear away, prolong the service life of cutting tool. Use liquid of sulfurized oil cutting, machine exterior surface roughness to rising, of face of the knife before reducing pair of cutting tool wear away the effect is very good. The influence course that cutting parameter reachs stability to machining function relapses cutting experiment, as main shaft rotate speed rise, of arbor vibratile increase, treatment surface is easy occurrence ripple. Additional, as the accretion of cutting deepness, penetration of a cutting tool fights force to increase, same, treatment surface surface roughness is reduced. Craft feasibility test and verify for test and verify the feasibility of afore-mentioned craft parameter, have test of cutting of imitate of chamfer of root of integral rotor leaf, process of cutting of odd side molded lines times with observation example detect, stop with odd side connect example to examine. Bilateral molded lines cutting ends, with double-faced stop connect example to examine, all satisfy the requirement of dimension public errand of the design. Show with detector of exterior surface roughness, ra1 of prep above of surface roughness of part of molded lines of foliaceous root chamfer.

6. The 3 conclusion treatment to chamfer of root of leaf of 34CrNi3MoA whole rotor, the experiment reachs a complete cutting machines plan: Cutting means: A traditional method of indicating the pronunciation of a Chinese character by using two other Chinese characters; Cutting tool: Use lathe tool of or so molded lines, knife face immerses via chemical liquid medicine before processing; Cutting fluid: Sulfurized oil; Cutting parameter: N=(2 ～ 3)r/min; T=s=0.

05mm; Cutting surplus is less than be equal to 0.

When 10mm, n=1r/min, t=s=0.

01mm. Machine method of the observation in the process: Vertical, transverse dial gauge monitors the displacement of cutting tool, half tine observes example monitors molded lines of foliaceous root chamfer; Final inspection: Example of odd side, total molded lines. Press above regulations, complete the treatment of chamfer of root of P25 rotor leaf effectively, dimension public errand and surface roughness all can satisfy the technical requirement of the design. CNC Milling