建国以来特别是文化大革命运动以来,我国的锻压工业已经有了很大的发展,为要更快地实现四个现代化所要求的目标,还得不断的努力。锻压加工是机械制造工业的一个重要组成部分,锻压工艺和锻压机械密切影响机械产品的质量和加工成本,它的技术水平在一定程度上反映整个机械工业的发展状况。为了更好 Since the founding of the People’s Republic of China, especially since the Great Cultural Revolution, the forging industry in our country has seen tremendous growth. To achieve the goal demanded by the four modernizations more quickly, we must make persistent efforts. Forging processing is an important part of the machinery manufacturing industry. Forging technology and forging machinery closely affect the quality and processing cost of mechanical products. Its technical level reflects the development of the entire machinery industry to a certain extent. To be better