1、吉林化工学院机电工程学院毕业 设计（ 论文 ）译文 The closely clean forming technique The closely clean forming technique is after the part take shape, the worker only needing a few processes or not in addition, and the mechanical forming technique constructing the part of available works. Having transformed Mao Pis formin
2、g technique of tradition on it is to build at the new material and the new sources of energy and the mechanical and electrical integration and precise many branches of learning high and new technology achievements foundation such as mould technology , computer technology , automation technology , nu
3、meric analysis and simulation technique etc , cause that makes roughly takes shape the forming technique that becomes the high quality and high efficiency , high precision and the gently quantification and the low cost . The rough degree on surface of bit precision reconciliation that it makes that
4、the shaping machinery constructs the size precision that piece possesses the accurate appearance and high and the shape. Specialty domains such as this technology including the closely clean shape casts shaping , accurately plasticity is shaping , accurately connection , precisely heat treatment is
5、modified and superficial modified and high precision mould etc , and is new technology and new clothes fully and newly material as well as all new the synthetically integration technology of technology achievements . Since following the 70s , a large number of funds and manpower has been dive into w
6、ith the closely clean forming technique of industry bound pair in each industry advanced country government , and making this technology get very fast the development , because the protruding contribution to the competition ability in market of this technology , the quilt is American and Japan gover
7、nment and enterprise list the key technology that the 90s influenced the competition ability , his output value increase range also far mores than the manufacturing industry output value increases the range . Major development trend has: Constantly developing closely cleanly to take shape the new te
8、chnology industry advanced country devotes self to continuously to develop closely clean to take shape the new technology, and all there is a very big progress in the various domain in that this special subject involves, thus the closely clean formation specific gravity that the shape occupies and s
9、haping precision as well as the complicated level of shaping part all has raising very greatly. Such as automobile jar aspect cast has been accomplished that the wall thickly at 3 - 4mm,s car gear wheel has had a lot can to use cold press production, tooth shape not in addition worker. The part that
10、 the speed universal joint parts such as car etc are very complicated can use accurate plasticity forming technique next life to produce. The car connecting rod not only size precision is high, and the weight deviation is also small, and the car connecting rod weight precision can have been controll
11、ed below 3 - 4%, and these technology has all pushed forward car self-respect reduction and the capability is raised, and raises along with the shaping precision having developed one batch of near clean shaping technology. New the development and is used closely clean takes shape, has also introduce
12、d one batch of new near clean shaping technology. All these all make this technology form the five colors confusedly to assume and compete the aspect developed. At the closely 吉林化工学院机电工程学院毕业 设计（ 论文 ）译文 clean forming technique of our country the specific gravity occupying in whole shaping manufacturi
13、ng production is still fairly lower , and shaping precision overall standard equally hang down 1 - 2 grade than the advanced country , and some newly technology has only a small number of enterprises to use , and a lot complicated hard shaping our country still can not produce , partly advanced equi
14、pment and manipulator robot taking shape , very greatly one part high the horizontal automation production line internally still can not form a complete set to provide , therefore the overall standard than abroad is behind 15 - 25 years . The forming technique that optimizes the clean shaping techno
15、logy parameter tradition is the technology built on experience and experimental data foundation to application technology simulation technique , and lays down the new part technology taking shape often still carrying on the large numbers modifications debugging when production . The especially compu
16、tational techniques development of nonlinearity problem makes simulation analysis and the optimization of shaping course become possibility to computer and the computational techniques development , abroad by way of large numbers works to have formed casting , forgings and answers the multiple items
17、 commerce software such as press and mould CAD/CAM etc , the strong promotion the near clean forming technique development , our country has done a lot working at the aspect of simulation analysis research , but physical strength is scattered , and the input of every unit is all inadequate , and ind
18、ividual event research is many , becomes commodity software few , now abroad takes shape the software enters the internal market in succession , also expose cost indisposed closing the problems such as national condition etc . Setting out from national condition, and organizes the superiority unit,
19、developing the technology imitation and optimizes work, the development first-in is suitable software, and is the problem should solve at present time. Constantly developing to suit closely clean shaping production with robot and manipulator closely cleanly to take shape is large quantities of capac
20、ity are produced usually , need to the construction automate production line , need to there be corresponding a manipulator and robot . The work at high temperature is gone off work usually again to diversify nature owing to the work environment. Therefore there are different characteristics in the
21、robot of cold working and assembly usefulness of closely clean shaping manipulator and robot with generally. At the abroad difference being directed against shaping technology need to , works and has grasped the design manufacture technique of a series of shaping manipulator and robots by way of man
22、y years , the development that our country production is used shaping robot and the manipulator except partly recommends the digestion development and by self can provide the enterprise need to , most products still need to researches and develop or by way of recommends digests absorb develops , for
23、ms the seriating step by step. Developing and use closely clean one-tenth opens that the automatic production line and flexible production line builds thread and control technique , and constantly raises the near clean shaping majority that large quantities of capacity of production efficiency abroa
24、d were produced having used the transfer machine to produce , and studying and build in this kind of production line in the industry advanced country has 吉林化工学院机电工程学院毕业 设计（ 论文 ）译文 tens calendar history to the merits such as stabilizes thus possessing productivity quality and the working condition is
25、 good etc , and along with the requirement to the product individualization of people , has appeared some flexible production lines . Some emphatic enterprises of our country recommend equipment and have built some closely clean shaping production lines , ( such as two vapor was purchased 12000 tons
26、 of hot contour forging press production transfer machines into German Austria Muds section corporation not phase in the 70s ) one after another in the 70s - 80 earlier stages dependence . Later the development with decides for self by way of recommends , our country can completely rely on the hot c
27、ontour forging production line of internal technology and equipment construction in the 90s early . Still having a lot of production line construction technology , the internal control not yet must be grasped these technology in next beginning of the century 10 years , can be according to the intern
28、al enterprise requirement , and the production line and flexible production line of different automation level are built . Attaching importance to the quality control of closely clean shaping production process , and raise the abroad enterprise of quality compatibility , and doing quite producing fu
29、ll the quality control of course for on the one hand the guaranty product quality is strengthened the management , on the other hand by way of the automation in the production process with the intelligence control in order to pledge that the closely clean shaping production quality is stable , and v
30、arious online checkouts of development and cannot harm checkout technology and instrument , and has carried on research and the application of statistics course control technique , thus quality and precision that makes the shaping part are reliable . Still there is the not truant distance in mention
31、ed above several key technology our country, and also needs to grasp as quickly as possible, thus pledges final quality taking shape. Developing the development invented manufacturing of recent years and network manufacturing that invented manufacturing and the network of closely clean forming techn
32、ique was made along with computer and the network technology begins getting in the abroad attaching importance to and developing, and the universal scope of closely clean shaping enterprise of our country is smaller, and the technical force is inadequate, and the information is not capable to work.
33、Because the rapid development of recent years our country network message industry , one batch of scientific research organization in our country and school and accumulated the gentle part of one batch of research achievements , if by way of the association and the association and productive forces
34、promotes many kinds of ways at the center enterprise and research unit and school organization , open-minded invented manufacturing and the network makes , carries on the service with compensation , and is effective way of scientific research achievements Commoditization probably , also will be effe
35、ctive way that raises the entire technology standard of trade . By way of the science and technology storming a strategic pass and the industrialization , and makes the closely clean forming technique can catch up with or be close to the international advanced standard at the aspect that major , and the innovation is had in the part of technology； Since by way of storms a strategic pass technology , industrialization , complete set foliation and can provide advanced
