Cutting treatment entered period of high speed cutting

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  • source:ASEM CNC Machining
One, cutting treatment entered period of high speed cutting (technology piece) in numerical control technology and cutting tool technology drove next cutting treatment to already entered period of high speed cutting jointly. Nearly 20 years cutting rate rose 5 to 10 times, cutting treatment efficiency rose 50% to one times. After cutting rate increases fair numerical value as cutting speed increase cutting force to drop instead, below higher cutting rate the temperature rise of workpiece also is reduced subsequently. Cutting tool of coating of new-style now hard alloy, all sorts of exceeding strong cutting tool is used extensively already at the industry such as car, aviation, spaceflight and mould the treatment of high speed cutting of all sorts of material, include to do treatment of heavy cut and cutting, hard cutting, rose effectively to machine efficiency and product quality. The 3% ~ that charge of the cutting tool in modern treatment holds production cost only 4% , but its influence to always making cost is gotten greatly much. Treatment efficiency raises 20% finished cost to be able to be reduced 15% , and 20% finished cost can drop cutting tool price fall only 0.

6% , cutting tool life lengthens one times finished cost to also be reduced only 1.

5% . Some of planned economy times machines enterprise formulate cutting tool to use up norm to undertake cost is controlled, solder in what low property uses on efficient entrance equipment even cutting tool, develop equipment performance to create bigger waste instead hard. More and more people realise now: Increase cutting tool investment to undertake high speed cutting is machined, it is to raise treatment efficiency and the significant step that reduce manufacturing cost. This is in recent years progress of cutting concept. Somebody of the abroad a few years ago is fatidical " exceed pottery and porcelain of strong cutting tool, tall tenacity material and the future that exceeding hard coating is cutting treatment " . Contemporary automobile manufacturing industry and aerospace are industrial the speed of aluminium alloy of milling of PCD cutting tool achieves 4000 ~ 7000m/min; The speed of cast-iron crock aperture achieves boring of essence of CBN cutting tool 2000m/min, use successfully at the rough machining of hard roll of temper by dipping in water; New-style the hardness that exceeds hard coating brand amounts to HV400O, can bear the high temperature of 1100 ℃ of 800 ~ . As the rapid development that exceeds material of strong cutting tool and coating technology, high speed cutting will receive wider application. 2, of cutting concept what promoted treatment efficiency newlier is ceaseless rise (concept piece) advanced cutting tool has base of 3 old techniques: Material, coating and structure innovate. At present the cutting tool material of our country and coating technology and abroad still have bigger difference, below the circumstance that machines equipment in use convention, the structural innovation that pays attention to cutting tool is likewise those who improve cutting efficiency is effective with more feasible method. For example every tine feed achieves the big feed milling cutter of Iscar company 3.

5mm, the cutting tool of compound aperture treatment of Seco company walks along a knife to be able to be finished auger, bore hole to pour horn to wait with end panel. The technology progress that crankshaft machines has conviction more, from inchoate crankshaft car treatment develops inside mill treatment, and the land increased the invention tenfold of broach of car of 90 time crankshaft crankshaft machines efficiency. Appeared again now the milling cutter of crankshaft high speed with taller efficiency, take a knife achievable the treatment of neck of 7 main shaft. Factory of cutting tool of quantity of east wind Motor Corporation was domestic car plant successfully to develop crankshaft car broach and high speed milling cutter to be used successfully at production. Tool of 90 time Chengdu studies the century on the individual technology that is in coating, material is not dominant below the circumstance, depend on the cutting tool design of own intellectual property and engineering technology, those who add coating, material and skill of innovation of cutting tool structure is integrated apply, success of well-known to abroad company came true to surmount on thread tool of vitta of high strenth stone. Still a lot of example explain cutting tool structure innovates to improve cutting efficiency effectively. High speed cutting just raises one of measures of cutting efficiency, we should use a variety of methods such as high speed cutting and innovation of cutting tool structure to realize efficient cutting, arrive from high speed cutting efficient cutting, be cutting concept progress again. We notice nearly 20 years cutting rate rose 5 ~ 10 times, but treatment efficiency rose only 50% to one times. The result that because one of is in,improves at cutting efficiency formerly was offsetted by many blame cutting time. The time that Japanese MAZAK company says to their machining center has 30% only is creating benefit for the company. The factory imports Oriental turbine the cutting time of automatic record on Swiss machining center also has 30% to control only. Cutting technology is developing ceaselessly, the understanding of people also is deepening ceaselessly: In increasing the effort that machines efficiency not only it is high speed cutting and efficient cutting, the latent capacity that increases cutting to manufacture efficiency through cutting application technology is very large still. The factory popularizes Oriental turbine in recent years but dislocation cutting tool improves manufacturing efficiency 30% . Then they have time of structural innovation fluctuation in the knife again, with joint development of Inc. of cutting tool of cutting of diamond of individual plant continent is advanced cutting tool, still make transforming improve manufacturing efficiency in order to use advanced cutting tool to vintage equipment. They returned configuration of pair of entire plant technology to undertake optimizing, strengthen the method such as the management, computer simulation that uses network process designing and cutting process to reduce blame cutting time, "Want beneficial result to the time of 70% " . Reduce blame cutting time proportional method is very much, if machine is knife of transfer to other localities, automatic fork-lift truck, random measure, the setting assembles and unassemble labour, purchase the equipment with high reliability to reduce maintenance machine down time to wait a moment, craft is optimized on administrative measure it is configuration, good to do working procedure balance is versed in with shortening a have enough to meet need and latency time are effective method. Using while advanced cutting tool realizes efficient cutting, apply relevant technology and administrative measure to optimize whole treatment process to realize efficient treatment even. Arrive from high speed cutting efficient cutting, arrive again efficient treatment, we call 3 progress of cutting concept this procedure. Put forward concept of these 3 cutting to be implementation " development cutting technology, construction produces power " the target pointed out diversiform way, each enterprise should be adopted according to respective condition agree with the efficiency that oneself method improves treatment effectively. 3, talent, innovation, foundation, practice (return uncut jade to return true piece) cutting concept progresses 3 times, apply cutting technology, relevant technology and administrative measure to raised treatment efficiency to offer new thinking in the round better for us. Obtain the result to promote this 3 concepts better, should value a handsome appearance innovation of education, technology, foundation study, pay attention to practice. The development change quickly of technology of current numerical control and cutting technology. Addend of linkage of shunt-wound machine tool, linear electric machinery, 5 axes accuses but the feed speed of the cutting speed of the circumgyrate main shaft, high speed main shaft that exceeds strong cutting tool, new-style coating, 40000r/min, 7000m/min, 20m/min, more be like the ground cutting is steely setting like cutting timber to make a person dazzling... product of advanced cutting tool emerges in endlessly, advertisement conduct propaganda blots out the sky and cover up the earth, before the service that creates benefit for the user in the supplier, company of a few treatment is executed " buy creed " raise manufacturing efficiency get effect instantly. After spend money in us nevertheless and solving treatment difficult problem, can you feel some are spellbound? Domestic tool industry is overtaking hard world advanced level, saying objectively basically is to dogging at present advanced technique and product. The cutting tool that uses in the CNC Machining of the industry such as car, mould, aerospace still is the product of foreign company for the most part, lack own innovation to make the difference of advanced level of we and world has help big trend, whether does the market competition that faces product of high-end cutting tool have again some but? The century on after-thought 559 time, a batch of model workers, skillful craftsman and expert scholars created a large number of advanced tools, found a state to driving very big effect arrives since nascent mechanical manufacturing industry. If Beijing always decides blessing of annals of machinery plant Ni,create group auger, the deep hole that Ma Xueli of factory of heavy-duty machine tool creates all-purpose tool embryo that Wang Chonglun of total plant of saddle steel machine creates and Wuhan covers makings knife to wait a moment. Comrade Ni Zhifu is performed in the Eastern European country group sensation was caused when getting. More than 40 years past, cutting technology obtained huge progress undoubtedly, but we are overtaking world advanced level is mixed enjoy the most advanced cutting tool to undertake efficient when treatment, comparative the case at that time feels what lack motivation of the innovation that break ― and innovation person with ability somewhat to be short of however break. The problem depends on us valueing the advanced level of foreign cutting tool more relatively, less however advertent its are advanced sexual bearing -- talent, innovation, foundation, practice. We should raise cutting level to had used advanced cutting tool, should develop advanced cutting tool to overtake world advanced level, get from make basically. Want education to have innovation dynamic talented person above all, and study and practice are a talent grow surely the road of classics. Metallic cutting has the academic base that compares a system as a traditional technique, in order to coachs we undertake cutting is machined effectively. Cutting process is very complex nevertheless and the effect that suffers a lot of random elements uses a few formula and well and truly description very hard to have its uncertainty again. The key depends on the union of theory and practice, want to apply cutting theory ABC to solve the ability of real problem in the escalate in practice. Tool industry of abroad takes cutting theory ABC seriously very much, but our college machinery is professional however former the cutting principle of 160 class hour and add up of cutting tool design are cut to inadequacy 20 class hour. Some colleges graduate connects fundamental cutting theory base to be not had, how to develop our cutting technology? To enhance integrated cutting knowledge groom, cooperate Chinese knife assist we wrote 20 projects " base of technology of cutting tool application " teaching material, groom with the contemporary cutting tool that at China Dao Xieju does with seminar, the fundamental technique that attempt general and cutting tool application concern is brought into groom the content with delibrate, everybody cares jointly and take the ABC of cutting tool seriously in order to cause. Teaching material from system of cutting processing technique form and the introduction of 3 element begins technology of cutting tool application, to workpiece material but the choice of parameter of parameter of geometry of cutting of material of cutting sex, cutting tool and coating and choice basis, cutting tool and structure and choice, cutting, way that improves cutting to machine undertook relatively of the system elaborate. Teaching material still combined the development of contemporary cutting technology to add the skill related to high speed cutting, it is high speed rotates respectively the dynamic balancing technology of cutting tool, safe technology and outfit clip technology. Our target is to be an enterprise to groom the ABC that understands contemporary cutting technology and newest development, the talent that masters the fundamental theory of cutting application technology to be able to solve real problem -- the is cutting engineer and new generation cutting tool king that we weigh. Go innovating through the talent, go carrying out, go overtaking world advanced level. Arrive again to efficient cutting from high speed cutting efficient treatment, as the every time of cutting concept progress machines efficiency to also rise ceaselessly. We should be static now next hearts come from basic problem proceed with, take ― of talent, innovation, foundation, practice seriously to call the promotion with cutting new concept, what lead in order to drive the greater progress of cutting technology and treatment effect is farther rise, just also can overtake world advanced level. 4, epilogue these a few years we from pay attention to cutting technology to arrive to pay close attention to cutting concept at the same time only, promoted 3 progress of the cutting concept that is a delegate to efficient treatment from high speed cutting, efficient cutting, those who advanced cutting to machine efficiency is farther rise. Present reflection is from make at all, in cutting technology height development and cutting concept update a foundation to go up ceaselessly, cutting concept will return uncut jade to return true, call the promotion with new concept of the cutting on the higher administrative levels from foundation of talent of ― of concept of cutting of cutting technology ―. "Person of 10 years of tree, hundred years tree " , we should overcome the thought of float dry psychology and eager for quick success and instant benefit, heavy foundation carries out effort to bring up again one large quantities of control base of advanced cutting technology, understand advanced cutting concept, have innovation the cutting tool king of consciousness and the cutting engineer that solve real problem ability and new generation. This ability is the manufacturing efficiency that improves cutting treatment further and faster ground overtake cutting cutting tool is advanced basic approach of the level. CNC Milling