七十年代以来,美国及西欧工业发达国家为适应大口径弹体现代化生产的要求都先后研制和采用了新型多工位压力机。例如,西德和法国采用组合式多工位液压压力机,而美国现行生产中使用的是多工位机械压力机和新设计的四工位弹体成形专用机械压力机。这些高效率、高精度的新型设备,在目前国际市场材 Since the 1970s, the developed industrial countries in the United States and Western Europe have successively developed and adopted new multi-station presses to meet the requirements of the modern production of large-caliber projectiles. For example, the combination of multi-station hydraulic presses in West Germany and France, and the current production in the United States are multi-station mechanical presses and newly designed four-station elastomer forming special presses. These high-efficiency, high-precision new equipment, materials in the current international market