Investigations of Forming Behaviour in Laser Shock Forming
Investigations of Forming Behaviour in Laser Shock Forming
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DOI：
10.2374/sri08sp148
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发表时间：
2009-05
影响因子：
2.2
通讯作者：
H. Wielage;F. Vollertsen
中科院分区：
文献类型：
--
作者：
H. Wielage;F. Vollertsen
小型化的持续趋势已经导致需要用于处理小部件的新的成本有效且快速的方法。本文提出了一种新的非机械成形工艺--微拉深成形工艺。这种新的深拉工艺利用激光在目标处引发等离子体冲击波，从而形成片材。可以在一个点上施加几个脉冲，因此可以在不增加能量密度的情况下达到高成形程度。在本文中的冲击波的压力进行测量，以便在未来的过程中进行优化。此外，将介绍对拉深杯形件的厚度分布的分析。给出了由Al99.5、Cu和不锈钢板制成的厚度为20 μm和50 μm的试样的激光深冲成形。最后计算了激光冲击成形的效率。
The continuing trend of miniaturization has entailed the need for new cost efficient and fast methods for processing small parts. In this paper a new non‐mechanical process for the forming process of micro deep drawing is presented. This new deep drawing process utilizes a laser initiated plasma shock wave at the target, which forms the sheet. Several pulses can be applied at one point and therefore high forming degrees can be reached without increasing the energy density. In this paper the pressure of the shock wave is measured in order to enable optimizations of the process in future. Furthermore, an analysis of the thickness distribution over the deep drawn cups will be introduced. Laser deep drawing of samples made of Al99.5, Cu and stainless steel sheet metal with thicknesses of 20 μm and 50 μm are shown. Finally the efficiency of the laser shock forming process in calculated.