【正文】
的使用壽命 有了顯著 提高,預鍛時要控制合模高度,在預鍛時形成合理的飛邊,能有效提高終鍛的成形性和模具的使用壽命。 太原科技大學畢業(yè)設(shè)計(論文) 31 參考文獻 [1]呂 炎主編 .鍛模設(shè)計手冊 . 北京:機械工業(yè)出版社, 2020. [2]張志文主編 . 鍛造工藝學 [M]. 北京:機械工業(yè)出版社, 1983. [3]鍛壓技術(shù)手冊編委會編.鍛壓 技術(shù)手冊.北京:國防工業(yè)出版社, 1988. [4]張振純主編 . 鍛模圖冊 [M]. 北京:機械工業(yè)出版社, 1980. [5]李尚健主編 . 鍛造工藝及模具設(shè)計資料 [M]. 北京:機械工業(yè)出版 1982. [6]高錦張主編 . 塑性成型工藝與模具設(shè)計 [M]. 北京:機械工業(yè)出版社, 2020. [7]濮良貴主編 . 機械設(shè)計 [M]. 北京:高等教育出版社 , 2020. [8]姚澤坤主編 . 鍛造工藝學與模具設(shè)計 [M]. 西安:西北工業(yè)大學出版, 1998. [9]《鍛工機械》編寫組編 . 鍛工技術(shù) [M]. 北京:國防工業(yè)出版社 , 1976. [10]殷玉鳳主編 .機械設(shè)計課程設(shè)計 [M]. 北京:機械工業(yè)出版, 1999. [11]大連理工大學工程畫圖教研室編 . 機械制圖 . 北京:高等教育出版社, 2020. 太原科技大學畢業(yè)設(shè)計(論文) 32 致 謝 本次畢業(yè)設(shè)計歷時三個月,通過對 轉(zhuǎn)向右節(jié)臂 模鍛工藝過程的制訂與系列模具(錘鍛模、切邊模、校正模)的設(shè)計,使我對大學四年所學知識有了更高層次的綜合運用,培養(yǎng)了工程觀點和嚴謹務實的工作態(tài)度,為即將走上工作崗位做了較好的準備。劉老師嚴謹求實的治學態(tài)度和一絲不茍的工作作風使我受益匪淺,在此 向 劉老師表示最衷心的感謝! 同組的同學在設(shè)計過程中也為我提供了不少幫助,在此一并表示感謝!由于本人知識水平有限,設(shè)計之中 難免有諸多不足之處 ,懇請各位老師批評指正。 State Development Planning mission, The Ministry of Science and Technology issued the current priority to the development of the hightech industry focus areas Guide has identified priority areas of the automobile is mainly concentrated in the automobile parts manufacturing industry. Auto industry, the small, lightweight and highspeed The direction of development, provides great opportunities for the development of the auto parts 60% is fing methods of production. The expert analysis: the United States, Japan, Germany’s, auto industry is so advanced, benefit from the fing technology and equipment of the leading position. China39。s automobile industry has bee a diversified trend, particularly the development of family cars, to meet the demands of different consumers, the car market has bee a multibrand, multispecies mon development pattern, so fings will inevitably lead to the diversification of demand, in order to meet market demand. Fing industry should give priority to how to make production more flexible to acmodate multiple varieties and Small Batch timely production requirement in nearly 10 years. Ⅱ The fing industry sector’s technological progress 太原科技大學畢業(yè)設(shè)計(論文) 37 Fing Industry major technological advances in the performance of new materials, new techniques and new equipment. Application of new materials. According to the information shows that the production in Germany at fing increasingly widespread use of microalloy steel. Due to Process in the followup to cancel the heat treatment process, the fing of such costs has dropped, Steel used in the manufacture of fings Fing immediately after rapid cooling, so cyanide will be enhanced by finegrained, thus decided the fing’s better mechanical properties. Lightweight vehicles also will lead the high proportion of employ magnesium, aluminum, titanium increasing. At the sometime nonferrous metal fings demand is rising. Alloy has a lower temperature in fing. Moreover it has a small temperature range, between its starts and ends. So that Forming velocity and the forming equipment which corresponded to are higher pared with the ordinary Fing. The application of new materials improve the fing equipment and process requirements, and thus their value to their products has been high. According to statistics, the United States, Canada accounted for fing 5% of the total steel fings sales accounted for fing total sales of 20%. Application of new technology. The socalled precision that is widely used for shape technology, through the application of new technology to achieve little without the purpose chip. For instance the shaft wedge rolling, roll fing technology。 fork parts of the pieces, multimode Boring forming technology。 fing equipment is developing gradually to the high efficiency, high accuracy, high reliability, low energy consumption direction. China fing industry factories scattered, backward technology, fing aging equipment, general Fing’s production capacity is very surplus, but the capacity is obviously inadequate, that can achieve the standard of DIN7526E precision fings level of productivity which Germany will be able to achieve. With a big gap between the foreign, in 太原科技大學畢業(yè)設(shè)計(論文) 38 order to meet demand of the international market and fing industry promote a reform of specialization。 At the same time, fing industry should vigorously promote the reform process, and use new equipment, actively realize modernization fing industry has bee large enterprises fing go out into the world and meet the world and pete with the peer. Ⅲ Fing hammer’s status and adaptability in the modern industrial technology development Fing hammer is a multifing machines’ pioneer which has been 100 years of history. Despite various fing new techniques and new equipment are constantly emerging, fing hammer still plays a very important role because of its simple structure, convenient operation, Forming fast, strong adaptability and the advantages of low investment. Especially the emerging of the programmable hydraulic fing hammer, that has made fing hammer a renaissance in modern technology development. Hammer has a distinct advantage against faster, thus mold exposure time is short. So it is particularly suited to the requirements of highspeed deformation mold filling occasions. For example, with thin bars plate, the plex shape and weight tolerances are required fings. Because of its rapid and flexible operating characteristics, its adaptability is very strong, and it was known as the universal equipment. Therefore fing is particularly suitable for multiple varieties and small batch production. Hammer is the optimal costforming equipment. Hammer Rapid Prototyping characteristics has been brought into full play not only in the hot fing forming technology, but also Cold Forming in the application of the process. According to re