Influence machining center machines the main factor of efficiency and product quality

CNC Machining technology serves as a of advanced production technology important sign, mainer and mainer effect is being produced in the industry domain such as mechanical, mould and aerospace. Beautiful, day, Europe developed machine tool of new generation numerical control and numerical control system in succession. Rotate speed of main shaft of its machining center already amounted to 15000~10000r ／ Min, feed speed is as high as 80m/min, empty traversal speed can amount to 100m/min; Treatment precision respect already raised 5 Zuo by 10 Zuo , exact form machining center raises 1~1 from 3-5 Zuo .

5 Zuo . People has realised treatment efficiency and treatment quality opposite produce the tremendous effect of cost and product competition ability. Influence treatment efficiency and the main factor that produce character amount have semifinished product of machine tool, tool, work, technique and treatment environment to wait for a respect. Want to improve treatment efficiency and treatment quality, must take proper step to afore-mentioned each respects, if reduce a machine tool,choose cutting tool working error, correctly, raise craft of semifinished product quality, reasonable arrangement, improvement ambient conditions. 1.

Choose appropriate machine tool basis to be machined the size dimensions of the object, definite place uses the norms of machining center; According to the treatment of workpiece precision asks, choose the machining center of different precision type; According to the result that to be being machined object craft analyses, determine an amount, decide knife storage capacity is measured then. 2.

Use efficient cutting to machine a method method of efficient cutting treatment basically has high speed cutting, puissant cutting and oscillatory cutting to wait. The majority quantity of heat that high speed cutting produces by cut bits to take away, quantity of heat won't gather in treatment area, at the same time feed speed should make than groovy feed speed much, quantity of heat more gather not easily, material heat is out of shape small, carry more constant cutting condition, rose to machine efficiency already thereby, assured the treatment precision of workpiece again. Puissant cutting shows big feed or the cutting that bear amount of penetration of a cutting tool greatly are machined. Compare with high speed cutting, the cutting temperature of puissant cutting is inferior, life is longer, cutting efficiency is taller. Oscillatory cutting is direction of edge knife feed, add low frequency or high frequency and oscillatory cutting are machined, can improve cutting efficiency. Cutting of low frequency vibration has the very good effect that break bits, but need not stop bit unit, make cutting blade intensity increases, the general power when cutting uses up the common cutting that stops bit unit than containing to reduce 40% the left and right sides. High frequency and oscillatory cutting also calls ultrasonic oscillatory cutting, conduce to reduce the attrition between knife and workpiece, drop cutting temperature, reduce the adhesive wear of the knife, improve cutting efficiency and treatment surface quality thereby. 3.

Choose knife knife correctly to having crucial effect in cutting treatment process. The stand or fall of the knife affects treatment efficiency and treatment quality directly. 1) chooses the knife stuff with good performance. Knife material must have very tall high temperature hardness and wearability, necessary bending strength, chemical laziness and concussion toughness, good craft sex, be out of shape not easily. 2) chooses high accuracy razor blade. Bit precision is low, jumpy amount is large, machines flat surface surface roughness is worth big. The jumpy quantity of high accuracy razor blade should be controlled in 2~5 Zuo . As the development of numerical control machine tool, appeared the technology of exterior modified coating of bit, measure the data of horniness stage gold with extensive bedding face to reach especially all sorts of new-style but the occurrence of dislocation razor blade, raised the precision of bit, the production that satisfies treatment of cutting of high speed, high quality ceaselessly asks. 3) choice appropriative is new-style knife. The characteristic of effect of new-style knife up and innovation craft, be led to heightening treatment effect and very main effect arrived since craft of treatment of treatment quality, innovation, if be inserted for what mould industry develops milling cutter, muti_function milling cutter, big feed milling cutter. 4.

The treatment craft with logical choice and treatment kind are right machining center, outfit clip can complete the treatment of working procedure of conventional technology much talk. Because this makes the treatment of reasonable, forthright,technology program is to assure to machine quality and the base that improve efficiency. Weave should assure to machine precision and requirement of exterior surface roughness when craft, shorten as far as possible treatment course, reduce workpiece to install a number, reduce process designing workload to wait. CNC Milling