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齿轮精密锻造是锻压少无切削工艺之一,它具有高产、优质、低消耗的特点。国内经过二十年来的研究与发展,目前它已较成熟地应用于各种汽车、拖拉机及其他机械的直锥齿轮的生产中,并已开始掌握了螺旋锥齿轮的精锻技术。所以是目前国内研究发展和推广应用较有成效的项目之一。木文综述了我国精锻齿轮技术的研究发展和生产应用的概况。文中就该技术的发展简史;精锻齿轮的各个主要工艺环节(坯料的制备,少氧化加热,模具设计、制造和材料,润滑、冷却,锻后机加工及使用的锻压设备等);以及在试验研究和理论探讨等方面的最近进展(螺旋锥齿轮精锻,球墨铸铁精锻联合工艺,应用电子计算机的辅助设计(CAD)在精锻齿轮中的初步应用等)进行了介绍。并提出了近期内此项技术发展工作的建议,供有关方面参考。文中列参考文献37篇,图12幅。齿轮精密锻造工艺是锻压少无切削新工艺之一。由于该工艺直接锻出齿形且公差控制严格,所以加工余量小,材料利用率大大提高;它和切削工艺相比,工序简化,工时减少;由于精锻生产的齿轮因金属流线未被切断,故机械性能较佳,其使用寿命提高。因此该工艺具有高产、优质和低消耗的特点。
Precision gear forging is forging less cutting technology, it has high yield, high quality, low consumption characteristics. After two decades of research and development in China, it has been applied to the production of straight bevel gears of various kinds of automobiles, tractors and other machinery. Now it has mastered the precision forging technology of spiral bevel gears. Therefore, it is one of the more successful projects in domestic research and development and popularization and application. Woody summarizes the development of China’s precision forging gear technology and production applications overview. A brief history of the development of this technology is presented in this article. The main technological processes of the forging gear (preparation of blanks, heating with less oxidation, mold design, manufacturing and materials, lubrication, cooling, forging machining and forging equipment used); and Recent progresses in experimental research and theoretical discussion (spiral bevel gear forging, ductile iron forging combined process, application of computer aided design (CAD) in forging gear) are introduced. And put forward proposals for the development of this technology in the near future for the reference of relevant parties. The article listed 37 references, Figure 12. Precision gear forging process is less forging one of the new cutting technology. As the process directly forged tooth profile and strict control of tolerance, so the machining allowance is small, the material utilization is greatly improved; it compared with the cutting process, the process is simplified, reducing man-hours; precision forging production due to metal flow lines are not Cut off, so better mechanical properties, improve its service life. Therefore, the process has high yield, high quality and low consumption characteristics.