Dry cutting fights movement

5mg/m3 and working standard arrive 0.

The permission that the law of 25mg/m3 will come to restrict inferior cutting fluid to enrage mist exposes a quantity. Safeguard, the record files and abide by active the price that forcing cutting fluid with the cost that the regulation of the plan produces rises quickly. Large plant pays from tens of thousands of will safeguard cutting to the capital of hundred thousands of fluid and should be installed likely only and use appropriate accessory and oily mist to collect implement and cut bits, drossy the processing that will defer them with the processing of has used cutting liquid. Its are a lot of machine as a result treatment company is passing dry cutting to avoid charge and the secondary action that accompany cutting fluid generation to spread out discuss. Although most factory may admit to have the desire that extinguishs cutting fluid, but they cannot decide can do get. They believe to want to obtain the data with higher rate and harder cutting it is necessary that they must use cutting fluid to maintain competition ability. A lot of from wet treatment transforms the visible cost of dry treatment also is tall. Do not become an issue nowadays. Actually, groovy in a lot of treatment operation should be dry treatment. Moreover, dry car hard data and high speed dry milling are feasible not only and it is profitable. Its skill is correct and compositive cutting tool, machine tool and cutting technology. Cutting fluid has damage and introducing one of obstacles with dry the biggest cutting without help more is cutting fluid better to obtaining bright and clean spend and life of longer cutting tool is necessary traditional knowledge. Although reality is medium,remain to a lot of application necessary, but research makes clear had contemporary cutting cutting tool material and current higher cutting rate is not such. Qualitative order and degree of advanced hard alloy material, especially coating is protected, do not use cutting fluid to be cut more businesslikely actually below high speed high temperature. When interrupted cutting actually cutting area temperature is jumped over tall, cutting fluid becomes improper more. This kind is to follow the reason of instinctive and reverse trend to depend on cutting area becoming very hot it seems that, exceed normally centigrade 1000 degrees, it is especially when high speed cutting and hard data cutting. E.g. , assume cutting fluid can overcome milling cutter high speed to rotate the centrifugal force of generation, cutting fluid is in before reaching cutting area already vaporization is right over there have cooling effect hardly. The result is to have the distinction with the temperature clearer wave motion that cutting a priori of the generation when be being cut when bit. Cool when bit is cut as the whirl of cutting tool, cutting next fashionable be heated again. Although also happen to heat and cool when dry treatment,circulate, but wave motion of the temperature when should having cutting liquid is bigger. The thermal shock of ensue can produce stress on bit and can premature burst. Similar result also happens when turning. For example should be when 130m/min of cutting speed prep above cutting carbon steel, expose in cooling fluid not razor blade of coating hard alloy can bear remarkable thermal shock is little at 40 seconds. This kind of concussion is passed slight face of the knife before increasing wears away and acuteness hind knife face wears away to shorten dramaticly cutting tool life. Because mass production turning is little at 40 seconds, dry to cutting tool life car is normally more desirable. On the other hand, getting when cutting, lubricate to offer and cutting bits to develop cutting fluid from Kong Li is normally must. Without cutting fluid, the meeting that cut bits is blocked up in Kong Li, and average surface surface roughness Ra is wet double of treatment. Cutting fluid gets a needle to also can reduce necessary motor torque through what lubricant brim encounters hole wall. Although coating broach is in,go up somehow the lubricant effect of fluid of can double cutting, but the trend with the most possible coating that reduces cutting force is fall attrition to lowest. Because return the scientific model that was not used at forecasting cutting fluid effect and performance, whether to use dry cutting you are sure depend on particular case. It is material, difficult that lubricating fluid is machined treatment, hard in the light of low speed normally treatment and surface are bright and clean degree have a demand, and the performance that a cutting liquid that has high cooling power can improve high speed to cut problem of the material, simple treatment, tumour that accumulate bits and stringent measure public errand treatment, easily to machine. However the expense with the additional not worth while and additional performance that fluid of cutting of a lot of moment provides. In more and more application, cutting fluid is needless simply or dye-in-the-wood harmful because contemporary cutting cutting tool suits higher temperature and compress air to be able to take away eager bits from cutting area. Coating of coating processing quantity of heat is another reason that makes cutting fluid does not need normally now. They are delivered to the heat of bit or cutting tool from cutting area through restraining will control temperature wave motion. The action of coating resembles heat barrier, because it has a lot of lower than cutting tool matrix and workpiece material thermal conductivity sex. Because this coating razor blade and cutting tool absorb less quantity of heat,can bear higher cutting temperature, this is meant do not sacrifice in turning and milling below the premise of cutting tool life more high-speed cutting. Ply limits acts an important role in cutting tool function in the 2 coating to 18 micron. Because scumble layer compares thick coating to be in,heat lower stress is caused in the process and not easy burst, to interrupted cutting the one aspect of the matter with this ply smaller bandwidth bears temperature is fluctuant and much better. Thick coating experiences identical stress, heat when you or when refrigeration is too fast easy burst. Accordingly, do treatment with scumble layer razor blade normally life of outspread cutting tool is amounted to 40% . This is why round razor blade and mill razor blade use deposit of physical gas phase representatively (a of PVD) main reason. The chemical gas phase with photograph correspondence is deposit (CVD) photograph is thinner than PVD coating, adhesion strength is much better. Besides thinner, their deposit temperature wants a lot of lower. Discover in turning and milling cutting tool more uses sharp cutting so blade and big before horn. Although nitrogen changes titanium (80% what TiN) takes all coating cutting tool, azotic aluminium changes titanium (TiAlN) appeared as the optimal PVD coating that is aimed at high speed finish machining. It exceeds 3 times of TiN function when cutting of in that way as successive as high speed turning high temperature. Because cutting fluid is permeated very hard,cut in as deep as Gan Xi and small diameter Kong Zuan wait for operating mode of high fever stress to issue it to also win out a lot of. Below cutting temperature TiAlN compares TiN harder, it is at present the hottest stability is mixed fight coating of chemical tatty PVD. Its hardness is as high as diamond pyramid hardness 3500, and its working temperature is as high as Fahrenheit 1470 degrees. Although do not have a person to know why to be met such, but bits is being cut when the scientist guesses these character come from a kind to oxidize when surface of the coating below certain high temperature - the alumina film of the noncrystalline that cutting tool interface forms. Application is thinner multilayer PVD coating makes its more agree with the research of dry treatment is undertaking. This kind of deposit craft builds a kind by hundreds only the coating of Mi Hou of a few accept is formed. Contrary, traditional PVD craft is become by the coating deposit of class of a few micron. Although have strong interest to PVD coating, the CVD that answers relatively to it to material of workpiece of most black metal it is welcome all the time. The deposit temperature with CVD very high technology conduces to adhesion and allow matrix to generate metabolic of aggrandizement point and help matrix resistance rich cobaltic area. Because they are thicker than PVD coating, because this needs heavier to cutting blade honing,will prevent coating of as thick as the corner layer flake in that way craze. It may not be a bad idea of this design anti-wear properties and every can exceed to turn in feed 0.

076 millimeter turn to every 0.

89 millimeter leave the job. CVD also is to be used exclusively foregone and optimal heatproof with craft of deposit of coating of oxidation tatty alumina. Alumina heat conduction is poor, the quantity of heat of the generation in because this segregation cuts bits,fashioning a process forces quantity of heat to flow into cut bits. Make it makes the exceedingly good CVD coating that dry treatment suits most in hard alloy. Below high speed it protects matrix, it is to fight abrasive to wear away with crescent moon depression tatty optimal coating. Advanced material likes to although coating material pledges grade has better cutting tool life,do treatment and treatment of type of the specific humidity when doing mill to machine is more reliable, but the economic limit that the requirement that machines to high speed makes cutting temperature surmounts hard alloy cutting tool. For example is in minutely 14000 turn and linear velocity is minutely next 400 meters of dry treatment casting pig, the cutting area before cutting tool can heat 600 arrive between 700 Celsius. Metallic excision rate uses aluminium of milling of more traditional technique to be close to with those, but the temperature that arises to casting pig is being machined for traditional cutting cutting tool is too high. Accordingly, higher cutting rate has the demand taller red rigid more the material of cutting cutting tool of wear-resisting. Cermet, cubic nitrogen changes boron (CBN) and two kinds of pottery and porcelain (alumina and nitrogen change silicon) fit this kind of requirement very much. (Today, term ' pottery and porcelain ' include alumina and nitrogen to change silicon two kinds, is not the alumina that pointed to only in the past. ) although not be to be aimed at black metal stuff, get together brilliant diamond (PCD) also is suit one kind to do stuff of treatment cutting tool. However, in the balance in all material bigger red rigid is mixed fight abrasive to wear away the consequence of function is fragility. Cermet, a kind of advanced hard alloy. Citing is told, cermet is the same as the job below the temperature with higher than can be in photograph of traditional hard alloy, but not as impulse withstand as hard alloy, medium the intensity when the tenacity that falls to burden and low feed and tall feed. However, cermet is in like be the same as traditional hard alloy carry next having gently roughly equal point intensity bears below higher cutting rate temperature and it is better to wear away, duration is longer and the surface is bright and clean degree much better. Good to extending a gender with stuck material, fighting the tumour that accumulate bits is formed and make the appearance good and bright and clean it is better to spend respect cermet to also be behaved. The red rigid with better Nextpage comes from the titanium that constitutes cutting tool material to change thing. Cermet, the initial skeletonize word of a pottery and porcelain and metal, it is one kind includes hard titanium base compound (nitrogen of carbonization titanium, carbon changes titanium and nitrogen to change titanium) agglomeration carbide, it is with nickel or nickel molybdenum is done stick receive a dose and do with cobalt in that way unlike production tradition hard alloy stick receive a dose. Because the metal sticks the temperature limitation that receives a dose, the red rigid of typical cermet material qualitative grade cannot be used at machining hardness to exceed Rockwell the material of 40. Frost of day of filling water of new fund of winter dress of female outfit of the net that clean out treasure recommends the fluid end day frost pink shadow of which kinds of good look fights product of thin leg of film of which brand good side which kinds of good cermet also adjusts oxidation product destroy and the stress that feed causes should be mixed than coating not coating hard alloy. Accordingly, it is mixed in need high accuracy good and bright and clean spend and the job is in tall cutting speed, low feed, small the expression when cutting deep treatment is optimal. Ideal treatment operation is those there is serious spiccato circumstance when cutting. The upper limit to feed of turning carbon steel is every turn normally 0.

63 millimeter, and also can handle main shaft high speed and the common milling below appropriate feed. If maintain,be inside these operation limitation, the cermet below mass-produced circumstance can hold sharp cutting blade in a long time. The cutting tool life that although cermet can fall to be passed only in conventional rate and feed,improves hard alloy and bright and clean spend and be worth to use, but it can be passed rise to 20% speed and treatment carbon steel, stainless steel and nodular cast iron raise 50% rate and improve productivity in wrought alloy steel. Pottery and porcelain, it is a branch of cutting tool material. Cutting tool of cutting of pottery and porcelain is the same as their corresponding cermet likeness, chemical to workpiece material stability is good, cutting tool life long and cutting can fall in high speed. Pure alumina has extremely tall hot impedance but intensity and tenacity are low, if operating mode not the combination of the intensity with the inferior word of beautiful and tenacity can is like so that it destroys easily. To make it is reduced to burst sensitivity, tool manufacturer or adds a few zirconia to raise tenacity, or interfuse 20% change titanium to raise impact resistance and thermal conductivity sex to the carbonization titanium of 40% and nitrogen. But, tenacity still should compare hard alloy a lot of lower. Additionally one kind of method that raises alumina tenacity is the brilliant that embedded carborundum strengthens content unoccupied place or brilliant beard. Although these brilliant need typical average diameter,only one micron length is 20 micron, but they are very firm apparent land increases tenacity and heatproof concussion sex. 30% what brilliant beard can occupy gross at most. With alumina alike, nitrogen changes silicon comparing hard alloy good red rigid can be maintained below the condition with susceptive higher temperature, and it can susceptive thermal shock and mechanical concussion are better. The main drawback that compares it with alumina photograph is treatment steel when chemical stability is good without alumina. Nevertheless, nitrogen changes silicon can with linear velocity minutely casting pig of 435 meters of treatment doing type, nitrogen changes silicon to be used at processing such work normally. Although use metal of cutting tool of pottery and porcelain to excise rate can be very high, but application must be correct. Citing is told, aluminium of treatment of cutting tool of pottery and porcelain is bad, but hard steel of treatment casting pig, nodular cast iron, temper by dipping in water and certain not hard steel of temper by dipping in water and fruit of heat-resisting alloy equivalent are very good. But even if in these material, use whether successfully depend on point is repaired grind, the stability of the cutting tool expression to workpiece, machine tool and clamping apparatus, use correct operation and optimized treatment parameter. CBN, hardness platoon is after diamond. CBN is a kind of extremely hard cutting tool data that is next to diamond, normally material hardness is more than Rockwell hardness 48 when the job is first-rate (the CBN when processing weak data wears away very fast) . Temperature arrives high centigrade 2000 degrees are to still have admirable red rigid. Although be compared with hard alloy photograph more fragile and thermal conductivity and chemical stability under pottery and porcelain, but it has higher than cutting tool of pottery and porcelain impact strength and fight burst sex and inferior to tigidity machine tool also can cutting hard metal. Further, appropriate custom-built CBN cutting tool can bear the stroke of the cutting load of high-power rough machining, interrupted cutting and the heat that finish machining needs and abrasiveness can. Appropriate to appointing working procedure custom-built the tigidity that includes machine tool and fixture, point is repaired grind prevent to enough greatly microscopical flake, and the matrix of cutting tool is the material qualitative order and degree with high content of a kind of CBN. The talent with CBN high content pledges grade appoints working procedure to these is must, the tall thermal conductivity that because they have the high speed below point burden condition,treatment asks and tenacity and use at serious interrupted cutting. These function make this kind of material qualitative the cutting tool material of grade is used as hard steel of rough machining temper by dipping in water and pearlite casting pig. The photograph with the material qualitative rank with CBN low content and CBN high content is compared more fragile, but it is better that they are used at metal of hard black of temper by dipping in water to machine. Their lower thermal conductivity sex and opposite taller bear high speed cutting and compressive strength of caloric of generation of place of the horn before losing. The material of temperature bate workpiece with cutting higher area and help break bits, and cutting tool of aggrandizement of the horn before losing, make cutting blade stable, improve cutting tool life, allow to compare 0.

25 millimeter are cut smally deep. Can obtain excel because of CBN cutting tool 0.

The surface of 4 micron is bright and clean spend and maintain coaxial to spend losing 0.

012 millimeter, hard work of dry car temper by dipping in water is a kind of charming grinding that replaces dirty aggrandizement refrigeration machines plan normally. Although CBN is the cutting tool stuff that a kind of good car and high speed mill like particularly, but the applied limits of pottery and porcelain and CBN has breathtaking jackknife, so very necessary with cost - benefit analysis will decide who can get best result. Performance of PCD treatment nonferrous metal is outstanding. As at present data of the hardest cutting cutting tool, synthesis gets together brilliant diamond bears abrasive wears away optimal. Its hardness and wearability come from between crystal anisotropy and diamond grain firm union prevents burst to expand. Get on solder of PCD knife head to increase intensity and impact resistance and can lengthen cutting tool life to be as high as 100 to hard alloy razor blade times. However, other character prevents it to use go up in most treatment operation. It is the iron in PCD and black metal has firstly add up to a gender in person, from this and the chemical reaction that come makes limitation of material of this kind of cutting tool is on nonferrous metal application. The character that another accepts restriction is it cannot bear the cutting area temperature of more than 600 Celsius. The result is the workpiece stuff with the expensive tensile strength that PCD cannot cut pliable but strong. Although such, the expression when PCD machines nonferrous metal is very good, the most outstanding is to be when aluminium alloy of treatment wear-resisting Gao Gui. Sharp cutting blade and big before horn is planted to cutting this efficiently material and cutting force are the smallest change and restraining is a key for the tumour that accumulate bits. In treatment place of stuff of wear-resisting nonferrous metal shows chemical stability to be mixed high wearability is good, it can hold interest at cutting place must sharp cutting blade. Aggrandizement cutting blade, although,reduce load since their physical function after rolling out rise and the development that uses a field, still compare hard alloy by the cutting tool of make it of cermet, pottery and porcelain, CBN, PCD more fragile and cannot bear likewise great stress. Accordingly, by them the cutting tool of make it is needed to be designed can increase to prop up and release stress. A substantial that designs this kind of cutting tool is the grinding of cutting blade, it makes haul of point of blade of cutting force deviate arrives its matrix. Such 3 point repair grinding is appropriate: Those who lose arris, honing, honing is negative pour arris. Lose arris to pour cornuted plane like a of cutting blade, it replaces fragile and sharp point of a knife. The target of personnel of cutting tool design is the smallest bandwidth of the intensity that discovery makes make sure cutting blade is enough and life and angle here, the razor blade after because width is mixed,angle increases gets aggrandizement but also increased cutting power. Honing turns sharp cutting knife with Yu Dun. Although they do not offer an elephant to lose arris to fight small collapse identically to protect action, dan Hang is ground small to what make by advanced material cut deep small feed in order to hold the finish machining razor blade of force of the smallest cutting very effective. Honing also can before aggrandizement, hind knife face intersects be in the effect that suffers arris. Should use steel of thick car of pottery and porcelain when producing small collapse, razor blade of the stress that honing can release the place, aggrandizement and do not want broaden to lose edge. Besides appoint the optimal point that is aimed at a certain treatment to repair grind, personnel of cutting tool design also must optimize cutting angle and can discharge bits. Pass the horn after increasing to reduce cutting force to let cutting tool the stress that go up decreases and drop the temperature of cutting area. before horny numerical value as far as possible big, it is better to lean cut action also reduces cutting force and broaden coils bits chamfer space relies on to increase eduction method to help the eduction that cut bits, getting especially cut and when thread machining. Those who keep low is tangential another kind of method of cutting force is high speed cutting. The tall feed rate below rotate speed of very tall main shaft is reduced and not be to increase to be amounted to to the concussion of workpiece 75% to 90% , this depends on cutting tool and treatment parameter. Further, there is more accurate size; at least before dry treatment improves the milling cutter of thermal stability; of cutting process to compare 5 years and it is better that contemporary milling and turning machine tool become rigid enough eliminates exceeding vibration. All these development support use fragile but harder more the cutting tool material of wear-resisting. Use a kind to be able to bear one of advantage of the cutting tool of high temperature are to cut bits to form very effective. Citing will tell, the quantity of heat when treatment is cast-iron increases what the plasticity of cutting area material reduces it to succumb intensity. Its are a metal as a result excision rate increases 3 times than traditional rough machining. Because feed rate is high, cutting tool cuts fast as a result of bits of be sure to major heat stays in cut bits in and flow to workpiece without time and cause twist. Although cutting temperature is very high, but the thermal stability of workpiece better and should lead a condition to fall than be being excised in traditional metal more accurate. Low percussive finish machining also makes workpiece, clamping apparatus and machine tool and turn with every below tall linear velocity the static state that lower feed uses the bit body that installs material of little bit low density is out of shape achieve the smallest. Because prop up workpiece to require very small clamping force only, so clamping apparatus can be done simply, do not need a reinforcement, workpiece to support the complex system with clamping unit. The result is a machine tool each face feed to casing spare parts are more. the machine tool likes to do a substantial that treatment is appointed and the machine tool with appropriate equipment also is this strategy. As a result of speed normally very fast, material temperature of very hard, cutting is very normally high, so machine tool must rigid good power is great. Accordingly, tell the person that use to should try hard to shorten to machining center cutting tool is dangerous extend and judge main shaft even besides seeing speed and power show immanent tigidity. On lathe cutting is close to shape with the part with hard temper by dipping in water, tower of the knife after solving cutting force problem can rely on machine tool tigidity to achieve very long cutting distance. The machine tool with a good design will solve those force along short direct access and include the machine tool part that move less as far as possible and supports cutting tool. Mix in balance precision flexible hind, you perhaps think to install the cutting tool group in horizontal tool carrier to be able to remove circumgyrate index mechanism directly. This kind of design makes cutting tool dangerous extend short, balance action makes the area that prop up the smallest to the cutting force on slideway change. To precision thermal stability also is crucial. The mechanical share performance of the machining center that so manufacturer of a few machine tools heats up bulgy method to improve them with software compensation. However, eager bits is discharged to eliminate the main heat source of working system interior outside controlling temperature change to will begin effective ground. The antrum that good machine tool design will cut bits without accumulation and tray have however do not rely on cutting fluid to help can eduction doing cuts bits helix to promote use implement and cut bits to ship unit. If the assistance of the fluid is indispensible word, the consideration uses air to replace a fluid. To protect the dirt in ball guide screw, slideway and jockey induction air, adjustable lid, cover, sealed with cleaner also be need. From wet it is feasible that treatment change is designed to the machine tool of dry cutting, the machine tool that buys a dry treatment is overall will say cost inferior, problem is fewer. Its cleaner and compress air to carry a system wetter than answering relatively also the oily mist that machines need is collected implement with cooling pump petty gain. Moving cost also is eliminated as a result of dry treatment cooling fluid manages and process charge and hang down drop-off. Further, dry treatment makes you use solution of liability rules system to be put with the cutting fluid in the future from now. CNC Milling