Tailoring Material Properties of Aluminum by Local Laser Heat Treatment
Tailoring Material Properties of Aluminum by Local Laser Heat Treatment
复制标题
通过局部激光热处理调整铝的材料性能
DOI：
10.1016/j.phpro.2012.10.034
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
M. Lechner
中科院分区：
文献类型：
--
作者：
M. Merklein;W. Böhm;M. Lechner
对可沉淀硬化的铝合金进行局部激光热处理，可以定制材料特性，并为白色车身制造轻质和防撞部件。对于传统的铝金属板和型材，可成形性通过间接方法来增强。因此，产品的特定部分被软化，以改善材料在成形操作期间朝向裂纹关键区域的流动。对于在累积辊压焊工艺中生产的具有纳米晶晶粒结构的创新型高强度铝金属板，除了间接方法之外，还可以通过再结晶效应直接增强可成形性。
The local laser heat treatment of precipitation hardenable aluminum alloys enables the tailoring of the materials properties and the manufacturing of lightweight and crash-proof components for the body in white. For conventional aluminum sheet metals and profiles the formability is enhanced by an indirect approach. Thereby specific parts of the products are softened in order to improve the material flow towards crack critical areas during the forming operation. For innovative high-strength aluminum sheet metal with nanocrystalline grain structure produced in the Accumulative Roll Bonding process in addition to the indirect approach a direct enhancement of the formability by recrystallization effects is possible.