论文部分内容阅读
对受拉、受压和扭曲加载的ＬＹ１２铝合金板被连续ＣＯ２激光辐照后的热力机械响应、应力状态、变形及破坏等进行了研究，同时研究了各种不同加载形式下的激光辐照破坏的工艺参数范围，分析了激光辐照破坏区的微观结构。研究表明，在激光辐照和机械加载的联合作用下，激光辐照烧斑区产生部分熔化和凹陷，在辐照区的边缘产生裂纹和皱折，最终导致破坏。另外，还具体分析了几种试件的破坏特征。
The thermal mechanical response, stress state, deformation and failure of LY12 aluminum alloy plates subjected to continuous CO2 laser irradiation under tension, compression and torsion were studied. The effects of laser irradiation under different loading conditions The damage of the process parameters range, analysis of the laser radiation damage zone microstructure. The research shows that under the combined action of laser irradiation and mechanical loading, the laser burns out the partial burning and sag in the burning area, and the cracks and wrinkles are formed on the edge of the irradiated area, finally leading to the destruction. In addition, the damage characteristics of several specimens are also analyzed in detail.