立式内孔壁激光熔覆系统四维机械运动系统的设计及模具设计毕业设计+开题报告+外文翻译.doc

燕山大学 毕业设计（论文） 立式内孔壁激光熔覆系统四维机械运动系统的设计及模具设计 学院（系）机械工程学院 年级专业 04级锻压 学生姓名 田 晓 虎 指导教师 高 士 友 答辩日期 2008.06.26 摘 要 激光是自1960年问世后就很快在实际中得到应用研究的高技术.其后,随着对有关基本理论研究的不断深化,各类激光器不断地发展,从而使其应用领域不断拓宽,应用规模逐渐扩大,获得的经济效益和社会效益更加显著. 如今,激光已经在工业、农业、医学、军工科学研究以及人们的现代生活中得到了广泛应用.从激光微细加工到激光核聚变,从视听装置、激光通讯到捕捉跟踪测量飞行目标,从激光育种到激光美容,激光技术都大有用武之地. 作为高技术重要组成部分之一的激光技术,是20世纪科学技术发展的重要标志和现代信息社会光电子技术重要支柱之一.其发展不仅受到技术先进国家的高度重视,而且也受到许多发展中国家的高度重视,并给予高强度的投入.20世纪80年代以来,不少国家把激光技术列入国家级发展计划,这些计划的实施使激光技术得到迅速发展,并且已经成了一个生机勃勃的新兴产业.同时,激光技术的发展大大促进了多种学科、多种技术和多种生产水平的进步和提高,其影响之大举世瞩目. 关键词　激光 高技术 重视 新兴 影响 Abstract The laser is a high-technology that was quickly used in application and research since it came out in1960. Since then, as the basic theoretical research was on the continuous deepening,various types of laser-machines were developed continuously.,Thus their application areas are continuously expanding, and the scale of application are expanding gradually. The economic and social benefits which it gains are more significant. Today, the laser has been applied in the industry, agriculture, medicine, military research and peoples modern life. From the laser micro-processing to laser fusion, from the audio-visual devices, laser communications to capture target tracking and measuring flight,laser technology has a great use. As an important component of the high-tech ,laser technology is an important symbol of the development of science and technology and and an important pillar of the photonics technology of the modern information society.Its development is not only attached great importance by the developed countries,but also by many developing countries which provide high-intensity input.. Since the 1980s, the laser technology of many countries has been included in the national development plan, The implementation of these plans carvede out a way for the rapid development of laser technology, and it has became a exciting industries. At the same time, laser technology has greatly promoted the development and impro