The treatment program of material of aerospace special type

07mm. But want to notice, in this group of material, used a variety of different types stick receive a dose, and every kinds stick the rate that receives an agent to need to differ severally and feed rate. These stick the speed when the melting point that receives a dose decides cutting composite material normally and feed rate. In addition, fiber content and fiber way are right also treatment craft (rate of decision cutting speed, feed and method of optimal cutting tool) having distinct effect. To aerospace application, the bore in composite material must complete, be patient of is interfered and do not affect follow-up component to machine working procedure coarse or tatty fiber. Composite material gets two when cut common difficult problem is material statified did not cut off with fiber, be in especially the back side of workpiece or export side. Get when cutting, the active force of cutting tool presses material downward, stand by export side as broach, too large active force can bring about broach to push the last share of broken aperture curtly, the result can cause composite material fiber coarse or wear away, is not clean ground cutting, bring about material thereby statified. Depend on the hard metal of whole of C1 diamond film that is used at processing composite material broach, shangaodi offerred to have two part that get a tip (the center is 130, broach pours horn to be 60) groove. When treatment, the intermediate dot of broach is exited from aperture extreme first, the partial data of cut away aperture. Such, when 60 parts are exited, broach crosses the feed active force of material to be able to decrease significantly. Accordingly, material is statified and not the fiber of cutting will be fewer. Besides broach of film of 2 blade diamond, hill still was composite material high to develop awl of a kind of distinctive 3 blade PCD head chamfer. Chamfer of broach of this kind of new-style PCD working requirement and broach of standard composite material are identical, but its effect is better, because its cutting blade is more. Broach has sharper cutting blade and every change the line of production unripe feed active force is smaller, retreating Kong Shi especially. In addition, compare with diamond film photograph, this broach has complete PCD to get a tip, below most circumstance cutting tool life can be lengthened amount to 4 times. Graph the treatment that the rough machining of 2 new-style double helix that contain bits chamfer establish alloy of titanium of milling cutter JC845nextpage is in aerospace industry, titanium alloy uses at 3 to use a field basically normally: The low temperature of plane structural member, reaction engine paragraph component and landing gear system. A kind of commonly used titanium alloy is 5553, belong to close - β photograph alloy, use at making landing gear normally spare parts. TiAl6-4 belongs to α - β photograph alloy, it is one of titanium alloy data with the most extensive application, apply to production structural member especially. Your titanium alloy is machined hard, have inferior machinability can main factor is the element such as its inferior heat conduction function, taller adhesion sex and treatment sclerosis. Titanium alloy has low thermal conductivity, this means the quantity of heat that produces in cutting process to conduct cutting tool in, is not the bits that be cut take away from cutting area. The tall adhesion sex of titanium alloy is meant cut bits to often can be stuck on cutting tool, thereby generation pole cuts bits longly, is not a hope of constant people place more easily of eduction shorter cut bits. When sclerotic function can be being machined, the treatment of this material happens, bring about material surface to appear as a result of the pressure effect that machines generation thin thin sclerotic layer. What although can be used,suit to process a variety of data is general-purpose cutting tool of integral hard alloy undertakes machining to titanium alloy, but the cutting tool of those in the light of the fabricating characteristics of titanium alloy special designs can provide more outstanding treatment result commonly. This kind of special cutting tool has admirable property, but when handling a variety of different material, its versatility may be poorer. Consequently, the high-speed steel that hill is titanium alloy with stainless steel design high only (HSS) cutting tool. Jabro HPM (high-powered treatment) the partial cutting tool in series also is to be the specific data brand such as titanium alloy to design only. This kind of cutting tool used special slot model with the design, suit to machine titanium alloy particularly. Groove include the big helix angle between 40~50 with the design; Inside cold passageway, can make cut bits to won't be stuck to edge to discharge bits quickly, still conduce to cooling cutting area at the same time; Not equal pitch, vibration can reduce in cutting deep course high; Spend hard alloy and nitrogen couple of photograph of aluminous chromic film. Did not use nitrogen to change titanium, this can prevent chemical reaction produces between cutting tool and material. In aerospace domain, most aperture is very small. To be less than 1mm, the biggest the diameter that does not exceed 20mm, broach of integral hard alloy uses extensively at titanium alloy and chromic nickel ferroalloy auger cut a field. Like milling titanium alloy, in getting the quantity of heat that cuts craft generation to also enter cutting tool easily, is not to be being cut take away inside bits. To solve this one problem, broach chamfer have very sharp cutting blade normally. Normally, because need very sharp cutting blade, the bit that is used at titanium alloy does not have film. Additional, film can increase attrition on certain level, increased quantity of heat to generate. More important is, after treatment material can contract. Accordingly, get the need on body bigger pour awl. Graph ferronickel alloy machines the chromium of JC840 of milling cutter of essence of life of film of Dura of 3 pairs of helix in aerospace manufacturing industry, spare parts of chromic ferronickel alloy normally very costly, it is the cost of material itself not just, still include the time that spends to produce them before entering treatment phase. The place of certain likeness exists between chromic ferronickel alloy and titanium alloy. But with respect to machinability character, chromic ferronickel alloy (alloy of nickel radical high temperature) the material that is the most difficult treatment. They have extremely low thermal conductivity and sclerosis of extremely tall meet an emergency, even alloy of prep above titanium. Chromic ferronickel alloy still has tall adhesion sex, because this is being used at the tradition machines a method, cutting speed can exceed 25~30m/min rarely. The cutting tool chamfer that is used at machining chromic ferronickel alloy with the chamfer that is used at titanium alloy treatment model have very big different, chamfer of chromic ferronickel alloy have very steep hind horn. This kind of chamfer but the contact that utmost reduces cutting tool and material. This are crucial, because chromic ferronickel alloy has plasticity and tall memory sex, this means it to be able to be in be curved a little when the active force of cutting tool. Accordingly, the osculatory time of cutting tool dip and material is longer, the abrasion of cutting tool happening is bigger, and its service life is briefer. To reduce cutting tool and the attrition between chromic nickel ferroalloy further, hill Gao Cai used nitrogen to convert aluminous titanium film. This film already undertook polishing, have extremely flowing and fine surface quality. When getting alloy of the ferronickel that cut chromium, need uses inferior speed and feed, because this data is harder, more hard cutting. Alloy of as chromic as milling ferronickel is same, getting when cutting, the cutting function of this material also can produce effect. In aerospace application domain, the hole depth of component of chromic ferronickel alloy does not exceed 3xD normally. The alloy of titanium of method of 4 kinds of treatment of titanium alloy and chromic nickel ferroalloy and chromic ferronickel alloy have 4 kinds of main processing technique or method. The first kind is conventional treatment, this method needs to be in Ae: Ap is 1: The balance is sought below the circumstance of 1, that is to say, treatment is used it is wide, certain to be cut completely cut deep (most greatly cutter hub diameter 1 times) lead with average feed; The 2nd kind is high-powered treatment (HPM) , this method needs to use the cutting tool that is titanium alloy and design of chromic ferronickel alloy only, for example the HPM series cutting tool with tall hill. These cutting tool are being used cut deep Ap greatly (most greatly 1.

5*Dc) fall with the condition that cuts wide Ae completely move. A large number of metals can be excised inside short time, promote productivity thereby; The 3rd kind is tall feed treatment (HFM) , the axial of this method use minimum is cut deep Ap and cut wide Ae completely, because this is cut wide for 1*Dc. The chamfer of specific cutting tool that this method uses can lead cutting force machine tool main shaft to go up, because because cutting tool is dangerous,this suits especially stretchy with complex application (if deepness is the chamfer of 5*Dc and above) and cause not stable treatment operating mode; The 4th kind is high speed treatment (HSM) , this method uses quite low Ae radial to cut cut greatly with huge Ap deep. Because radial is cut deep relatively inferior, because this has lesser osculatory arc, this conduces to the quantity of heat that reduces the generation inside cutting area (because osculatory time is shorter) , allow higher cutting rate to undertake compensate and improving productivity thereby. The development of machine tool and cutting cutting tool makes these methods are able to come true. Like hill chamfer of tall HPM cutting tool have special character, be like helix angle of not equal pitch, bent, this provided necessary stability for high-powered treatment method. In tall feed and high speed treatment, the ability that these methods rely on a machine tool normally and cutting tool chamfer. Greatly, machine tool and the specific data that cutting tool needs to coordinate the job to satisfy aerospace manufacturer machine a requirement. Correct machine tool and correct cutting tool must be had. This is in tall feed and high speed treatment particularly such, this kinds of treatment needs to have the machine tool that tall feed leads not only, the CNC that still needs to be able to handle the larger order related to tall feed and treatment of high speed milling and NC document accuses. The challenge sex material that in wanting to process aerospace trade efficiently, encounters at present, the key is to achieve complete treatment solution, is to acquire a product not just. Complete cutting tool solution includes necessary slot not only model with the design, still include to use project support. The substantial knowledge of personnel and experience and advanced product photograph are united in wedlock, can form a complete solution to achieve ideal result. Requirement manufacturer has spare parts quality and craft security to be specific applying only, no matter be alloy of alloy of composite material, titanium, chromic still ferronickel and the optimal cutting tool of the design, in order to achieve best performance. CNC Milling