The current situation of punch technology and development trend

The real progress of the technology of punch of diagnostic 　 　 that punch technology develops, only then the industrialized production at the car. At the beginning of 20 centuries, the industrialized production of American Ford car promoted the research of strong art and development greatly. Research work basically is mixed in technology of board makings figuration two respects spread out figuration sex at the same time, crucial question is burst, corrugate with spring back, involve but figuration sex beforehand the innovation of method of appraise, figuration, and the analysis of figuration process and control. But in the major while in 20 centuries, basically be experience to the control of punch technology model. Analysing a tool is classical figuration mechanical theory, the question that can beg solution is very finite. The key of research is plank punch function and figuration mechanical, far the requirement that cannot satisfy auto industry. 60 time are the important period that punch technology develops, all sorts of new figuration technologies appear in succession. Especially figuration limit pursues (Fld) put forward, drove craft of theory of plate performance, figuration, figuration and quality pilot to coordinate development, become a milepost on punch technology phylogeny. Because 80 time are limited,the in advance of yuan of method and Cad technology develops, make 90 time emulate those who be a center to be able to develop quickly in punch domain and be moved toward with computer application technology with numeric imitate practical change, make the powerful tool that material is out of shape behavior research and process are designed. Car punch technology entered analytic phase truly, traditional board figuration technology begins to be changed scientificly from experience trend. Review on the development course of the century is visible: (1) consider and be being improved of punch function is the development phase with punch technology complementary photograph bear. (2) the flying development of the industry such as car, plane, and the main impetus that element of the sources of energy is punch technology development. Enter new century, environmental element and relevant legal tie are increasingly outstanding, the car is small quantify design and make make current main task. (3) the development that figuration process digitlizes emulation technology, drive traditional punch technology to move toward science to change, enter range of advanced production technology. (4) the development of punch technology involves each aspect such as material, the sources of energy, mould, equipment. The scientific analysis of the innovation of technique and its process and control are the core that the technology develops; Mould technology is punch technology development reflect, it is the main factor that decides the product produces periodic, cost, quality. 2, closely related the develops punch technology development of advanced figuration technology and material and structure. Predicting future 10-15 year, the environment wants the environmental protection legislation with increasingly strict sue for peace, will make automobile data and structure produce very big change. To reduce the discharge capacity of urban Co2, car do one's best is light quantify, its most outstanding development direction is to raise what what use data to be mixed than intensity more efficient than stiffness and development light quantify a structure. In structure of contemporary automobile body, high strenth steel is occupied about 25% . Continueing to develop steel of extra high strength at present while, combinative development is new " efficient structure " with production technology, strive for make automobile body weight reduces 20% above. But the effort of more fetching attention direction is to enlarge the material of low density alloy such as aluminous, magnesium the application on the car. Euramerican considering to develop future model car of family expenses of aluminous automobile body, can make weight reduces 40-50% , 1/3 what bad news oil is active car average only. Current main problem is aluminium alloy of development low cost, development new structure and efficient production method, and improve reclaim technology. Once cost asks the problem was solved, aluminium alloy may make the main construction material of the car. Since 1991, magnesian crop increases 1 times 5 every years, it is the prospective stuff that has an outlook very much, the application that predicts the magnesium after 2003 will have rise apparently, include large automobile body exterior spare parts. Compound plank makings all also has wide application perspective in the respect such as car, plane, medicine, food, chemical industry, commodity. In addition roast sclerosis board, exterior modified board wait for modified material. 80 time, the punch technology of zine plate of Euramerican research plating; 90 time, the punch that the key studies to laser spells solder board and the accurate figuration technology of profile of all sorts of extruding canal base. Aluminous profile framework dosage also is increasing ceaselessly. Structural integration is fundamental development trend, not only to the plane, prospective car also will enlarge application. Apply as the amplification of new material and new structure, urgent need develops technology of corresponding figuration of low cost punch. Current research emphasis: Aluminium alloy covers a punch technology that waits for automobile body spare parts. Abroad already had practical technology and data of mould design data. (2) the punch technology that a variety of ply laser spell solder board base. (3) of extruding canal base inside high-pressured figuration technology. (4) answer the figuration technology of plywood. To aircraft industry, titanium alloy, aluminous lithium alloy is complex appearance spare parts and aluminium alloy are special the figuration technology of structural member is current research emphasis. With the liquid direct or all sorts of hydraulic forming technologies that serve as half model secondhand or pass inductive medium, belong to half model figuration or soft model figuration, have a lot of advantages (already had nearly 60 years of histories) , basically produce a method be spare parts of plane Ban gold. Come nearly more than 10 years after sealed problem resolves high-pressured source and high tension, be able to develop quickly, important applying is obtained in auto industry. Hydraulic forming includes figuration of hydraulic pressure rubber pocket, fill fluid to pull dark take shape and inside high pressure bilges tubal figuration. Figuration of hydraulic pressure rubber already enlarged the figuration of the panel of complex inside and outside of the car from the tradition application of aviation industry, below the pressure of 100-140mpa, figuration quality is very good, apply to trial-produce and small lot production. Burgeoning inside high-pressured figuration technology is already practical change, industrialized, the support that produces engine, vent-pipe, camshaft and frame wait, achieved very good efficiency and benefit to predict form and laser beam welding receive strike out of hydraulic forming, semifinished product spelling solder assembling will be prospective car light 3 constructional crucial technologies. In addition stick medium pressure figuration, magnetism pulse figuration, and the research of technologies of all sorts of the figuration that do not have a model also has very great progress, show more and more technology flexible. 3.

The development that digitlizes figuration technology is advanced figuration technology is to be on the foundation of traditional figuration technology, it is pillar with the computer, use each new and high technology such as project of information, electron, material, the sources of energy, environment and modern management technology integratedly, be helpful for implementing the technology of strike out form that product complete lifetime optimizes integratedly finally, it is to be able to jump over old rate land to achieve " essence of life, province, clean " target, acquire the figuration technology of tall integrated benefit. Develop the key of advanced figuration technology to depend on: The computer analysis that develops process of strike out form energetically emulates a technology (Cae) . (2) collateral project (Ce) , the mode of job of serial and ordinal type that collateral job mode replaces a tradition stage by stage. Auxiliary process analysis emulates the computer (Cae) it is one of technical progress that 20 centuries later period has great sense most to metallic figuration, its core is finite yuan of analysis technology. With finite emulation technology of yuan of the computer in the process of strike out form that the law is a foundation or numeric imitate technology, provide design, punch course design and craft parameter in order to develop tool set to optimize the new approach that offerred science, will be the most significant step that solves design of complex punch course and mould design. The applied pace of foreign large company is very rapid, and auto industry takes advanced line, already matured gradually now, use at mould design and the time that try a model to reduce 50% above. American Gm occupies world lead position. The development trend of numeric imitate technology can generalize as follows: Raise imitate calculative precision and rate further. The key breaks through spring back to be forecasted accurately; Progress is fast and limited yuan of imitate technology, come true " when Nature's engineering Cheng " , even " 2 hours of projects " ; Strengthen basic research at the same time, solve complex be out of shape the fundamental sex problem such as method. (2) reduce the software demand to personnel major quality. Market software function is at present powerful, basically face an analyst, bought advanced software system, can not achieve good imitate result certainly. Face medium and small businesses, promotion is more difficult. (3) reduce the software demand to hardware platform. Current, almost famous strong tool set drafts what software already completed edition of Xiang Wei machine to change. (4) the research that strengthens initialization to design link. Initialization designs link (initiative plan) , regard computation as analytic start and modification basis, the staff that still needs to rely on to have experience up to now is finished. Urgent need develops knowledge base project (Kbe) , expert system (Es) , artificial intelligence technology (Ai) with finite union of yuan of simulation software photograph, implementation intelligence changes initiative job, reduce the dependence of pair of technology experts. (5) strengthen fundamental test. The data such as criterion of condition of this compose relation, attrition, blemish comes from material function experiment, its authenticity, accuracy is the main factor that limits imitate analysis to achieve reliable precision. (6) make a system expand to product punch further, what implementation makes whole process, complete lifetime is integrated optimize. Current, figuration process is analysed, still solving again " form " problem. Future, will at the same time to change " quality " development, those who achieve the performance after be out of shape process of means, figuration reachs figuration is integrated optimize. (7) popularize Cae technology imperative. Cad technology passes 5-10 year gain ground energetically, solved manual plot problem basically. Prospective 5-10 year, of Cae technology gain ground will imperative. Small machine creates a company in many 70, number of company of punch, pattern is very large, the task with technology of tradition of new and high technical reformation is very formidable, combinative industry is adjusted, make overall plans, need carries program. 4, since the development trend of technology of strike out form enters 90 age, new and high technology promoted traditional figuration technology in the round transform those who reach advanced figuration technology to form with development. The punch technology of 21 centuries will develop continuously with rapidder rate, the direction of development will be more outstanding " essence of life, province, clean " demand. (2) technology of strike out form will be changed more scientificly, digitlization, can accuse to change. Science changes main body to be opposite now of quality of figuration process, product, cost, benefit forecast and can charge rate. The numeric imitate technology of figuration process will be in practical change a respect to obtain very great progress, make a system with digitlization well compositive. Artificial intelligence technology, intelligence changes control to will develop to enclothe from figuration of simple appearance spare parts wait for figuration of complex form spare parts, enter practical phase truly thereby. (3) pay attention to a product to make whole process, realize much aim situation as a whole to be optimized integratedly to the greastest extent. Optimize the systematic whole progress that will make whole process and complete lifetime to the product from traditional onefold figuration segment. (4) the fast analysis to product producibility and figuration craft and evaluate ability to will have great progress. So that rise from initial design conceives the product even, can be aimed at a spare parts but figuration sex and the assurance that require performance are spent, make fast analysis evaluate. (5) punch technology will be had bigger flexibility or flexible, the development trend that produces demand of mode and market diversification, individuation in order to get used to mixed flow of much variety of volume of prospective little finger, strengthen an enterprise to answer ability to vicissitude of the market quickly. (6) take seriously compound the development that changes figuration technology. The technology is in the advanced figuration that is a foundation with compound craft to develop to way of direct production part from production semifinished product not only, also be in from make individual spare parts develop to the direction of whole of direct production structure. After joining Wto, the pillar industry such as industry of Chinese auto industry, aerospace is sure to have great progress. The punch industry of our country is full of the good luck of development already, be faced with again farther the grim challenge with technology of tradition of new and high technical reformation. National economy and the development that national defence builds a career to press Xiang Chong figuration technology put forward more to renew higher demand. The board makings of our country machines a domain to must strengthen the combination of force, those who strengthen a technology is integrated with compositive, accelerate traditional technique to change changed course to science from experience. Quicken a talent to foster, promote a technology innovation capability, enhance the integral quality of punch technology team and the competition ability that produce a business.

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