论文部分内容阅读
爆炸成形是利用炸药爆炸,瞬时释放巨大的能量,产生很大的压力(达几千大气压),在很短时间内(仅千分之几秒)使板料成形。爆炸成形具有许多优点,它显著地提高毛坯的变形系数(如碳钢、不锈钢和钛钢,其变形系数分别提高到一般成形方法的2.3倍、1.1倍和1.5倍),提高成形零件的质量,模具简单,不需压力设备,成本低廉,能成形极复杂形状的零件等。因此,这项新工艺近年来获得极迅速的发展。从模具的结构特点,爆炸成形可分为有模腔爆炸和无模腔爆炸成形(自由成形)两种。前一种是利用凹
Explosion forming is the use of explosive explosions, instantaneous release of huge energy, resulting in a lot of pressure (up to several thousand atmospheres), in a very short period of time (only a few thousandths of a second) to shape the sheet. Explosive forming has many advantages, such as significantly increasing the deformation coefficient of the blank (such as carbon steel, stainless steel and titanium steel, the deformation coefficient increased to 2.3 times the general forming method, 1.1 times and 1.5 times), improve the quality of the formed parts, Die is simple, no pressure equipment, low cost, can shape very complex shapes of parts. As a result, this new process has achieved extremely rapid growth in recent years. From the structural characteristics of the mold, the explosion forming can be divided into a cavity explosion and no cavity explosion forming (freeform) two. The former is the use of concave