Solder the technology studies in the application in aerospace industry
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Technology of 1 electron beam solder falls in vacuum environment, the alignment after high speed electron sheds focusing workpiece undertakes seam, and at this moment the heat energy of kinetic energy translate into of electron beam, metallic workpiece fusion, this kind solders the method calls electron beam solder (EBW) . It also is a kind high-energy bundle shed processing technique, solder with other technical look is very more than having advantage, for example: Energy density is high, solder deep wide than big, be out of shape small, precision is tall, OK still automata. The electron solders technology these advantages, make it waits for an industry in industry of aviation, spaceflight, electron, nucleus respect application is wide. Solder electron beam the technology applies Yu Hang in empty manufacturing industry, make production aircraft engine more accurate, quality is more advanced, also make of a lot of spare partses decrease heavy design, heterogeneous material or hard of the hardware data that whole processes solder be able to come true. In aerospace industry respect, the mainest technique solders namely the characteristic that the spare parts has high strenth, low weight and stability, and electron beam soldered to solve this one problem fitly. This shows, in spaceflight aviation domain, electron beam solders to had made an indispensable technology. 1.
Technology of laser of technology of 2 laser beam welding is relied on above all polarizing lens reflexes device, will stimulate focusing of beam of light to be on workpiece, use the tremendous energy that beam of light produces, the instant can fuse workpiece and evaporate, this kind of technology is laser solders. The plant that place of laser beam welding requires is relatively simple, density of the energy when soldering definition is tall, high, workpiece is out of shape small, and can solder difficult frit spare parts, this kind of technology can undertake below room temperature or special condition. When big to the plane envelope and accessory undertake joining together, often use technology of laser beam welding. Be in early controlled 1970, the United States uses technology of laser beam welding Yu Hang in empty spaceflight industry. The CO2 copy laser beam welding that they made a 15kW engine arc light implement, all sorts of parts that producing a plane and material fortune used technology of laser beam welding, undertake soldering experimenting reaching raising craft level to its. The A340 plane that airbus company produces, the clapboard inside all aluminium alloy in its spare parts is to use laser beam welding to receive a technology to finish, make airframe weight somewhat, manufacturing cost also gets reducing. 1.
of technology of 3 agitate friction welding 1991, england solders institute (English abbreviation is TWI) , research and development technology of a kind of new solid photograph join, name its for technology of agitate friction welding (English abbreviation is FSW) . This technology is the world solders history of the research on technical phylogeny is the shortest but transmission rate is the rapiddest solder technology. Its working principle is, be not the agitate head of consume through a kind, make its high speed rotates, press the interface that wait for solder next, through high speed attrition heats to be produced thereby by solder metal interface thermoplastic. Finally, the spare parts is formed below the joint action of pressure, thrust and extruding force join diffuses between compact metal. The characteristic of this technology is, when soldering need not material, without splatter, need not loss of aeriform protection, spare parts is small etc, also be called from this provide most now solder revolutionarily technology. For example, when Boeing company is producing C-17 and C-130 transport plane, also use this technology solder to receive a floor to replace fastener to join, make floor structure gets simplifying, manufacturing cost gets reducing. Altogether, the industry that friction welding technology will be in agitate to did not come develops tremendous potential in application. 1.
Diffusion welding of technology of 4 diffusion welding says to diffuse again join, it is to point to in vacuum environment or below aeriform protection, heat to mother capable person to melting point the following, will two or surface of many spare partses uses force, make the interface produces microcosmic plasticity to be out of shape form close together contact, maintain some temperature to make atom is in the interface diffuses and, receive the part finally one case repeatedly. Use this to solder method, can solder many connect, the contact quality of the spare parts good, deformation is small, and after solder need not machine treatment. As a result of these advantages, come back in the titanium alloy of helicopter the production of the spare parts such as lamina of casing of crossbeam of lamina of fan of alar paddle hub, interlining, plane, engine, turbine makes a process in, diffusion welding technology had gotten be applyinged extensively. In aerospace domain, solder the technology had made indispensable important link technology, of this technology apply make aircraft weight is reduced somewhat, engine quality rises somewhat, the development that promoted spaceflight aviation industry greatly so rises with what manufacture a technology. Very apparent, industry of aviation of our country spaceflight is in the development in the future, cannot leave to solder technology. Meanwhile, of this technology use the flying development that also can promote spaceflight aviation industry. 2 solder the technology solders with electron beam in the applied ― in aerospace industry the technology is a ceaseless progress as the technology, more and more advanced solder the technology is come out by research and development, reduce the weight of spaceflight spaceflight structure effectively not only, can support through offerring advanced technology more, the promotion that is integral performance of spaceflight aviation aircraft, engine and integral function provides a help. Electron beam solders the technology is aerospace industry in one kind when apply generally solders technology. 2.
1 electron beam solders to apply what body ministry basically uses engine firebox mediumly in engine firebox is stainless steel solders structure and metal of casting of cupreous embryo electrify. But, when undertaking soldering, because suffer respective physico-chemical function to be put in vast difference, increased to solder greatly difficulty, be in memory to produce foreign matter in contact especially. When be put in greater welding stress, contact office appears easily craze. In the meantime, below high temperature circumstance, electroform layer appears easily weaken, come off even. In addition, when using electron beam to solder, also can be come from the magnetic effect of electroform metal layer. Accordingly, using electron beam to solder when the technology undertakes soldering, answer electroform metal layer to undertake integral demagnetization above all, undertake to the method of electron beam magnetic field screen is handled. When soldering, basically use welder of high pressure electron beam to undertake soldering to firebox. The generation when wanting to avoid to solder as far as possible crosses much quantity of heat, avoid to be out of shape, and as far as possible the stress that reduces contact, prevent Yi Rong interlining form, avoid to answer high temperature and the case that occurrence adhesion drops, avoid the occurrence of craze circumstance effectively. 2.
2 electron beam solder to combine a medium application in moire canal moire canal is combined in aerospace engine product it is its one of main component. In the meantime, also be to need to use electron beam to solder the substantial that the technology undertakes soldering. Generally speaking, multilayer metallic ripple is in charge of is spaceflight engine move sealed original basically. Multilayer metallic ripple canal depends on won't appearing as the main dominant position that uses sealed original phenomenon blocking sluggish, photograph contrast is more agile. For this, make sure campaign is slick with good air-tightness it is the crucial location that moire canal sets a production, and this link need comes true through soldering. Use electron beam to solder technology, enhance the contact strength of moire canal effectively, avoiding metabolic as far as possible thereby at the same time, those who assure to solder is beautiful with sealing. 2.
3 electron beam solder to be in the application in pressure vessel in aerospace industry application, the main use of pressure vessel depends on having memory to all sorts of fluid medium. The stand or fall of pressure vessel quality, matter to the stability of dimensional system directly. Electron beam solders to have dominant effect in pressure vessel of production high quality. In boosting a system, fuel store box and gas cylinder are crucial part. Show according to concerning statistical result of the branch, the much hair breakdown of pressure vessel basically is in place of gas cylinder welding line centrally. Accordingly, when undertaking soldering, gas cylinder place solders the demand is extremely high. When using electron beam to solder, can pass bosseyed solder double-faced figuration, the inside and outside of angle control welding line from equipment and craft expresses the occurrence of the blemish gnawing an edge of the face. In addition, as in recent years check material gas cylinder is added gradually much, its are formed two layers by inside and outside. Among them, lining is metallic lining, and outer composite material layer. Former action depends on airtight action, and latter check material basically shoulders load of major internal pressure. Solder through electron beam the technology basically is aimed at the lining in gas cylinder, namely metallic liner undertakes soldering, the metal of this part employs titanium alloy commonly or aluminium alloy is made, photograph contrast is consequently thinner. It is OK to pass vacuum electron beam more accurate undertake soldering, avoid stomatic flaw. 3 last words solder the important link technology that the technology is aerospace domain, the progress that it makes a technology in stimulative aerospace, implementation is aero decrease heavy, efficient in the effect with be being developed mainer and mainer. Can foreknow, industry of our country aerospace is in of advance rapidly solder of the technology drive next deciding to will obtain rapid development. We believe, solder as the technology ceaseless progress of the technology, standard of industry of our country aerospace also will get apparent promotion. CNC Milling