Investigation of HAZ and Its Influence of Laser Cutting 2A12 Aluminum Alloy[J]. Aeronautical Manufacturing Technology, 2010, (9). DOI: 10.16080/j.issn1671-833x.2010.09.006.
Investigation of HAZ and Its Influence of Laser Cutting 2A12 Aluminum Alloy
采用脉冲 CO2 激光对 2mm 厚 2A12 铝合金进行了切割试验,研究了切口表面的形貌及成分,以及热影响区的尺寸和显微组织;以水切割为对照,分析了热影响区对试件单向拉伸性能和疲劳寿命的影响,并对疲劳断口进行了显微分析。
Abstract
The pulsed CO2 laser cutting experiment of 2A12 aluminum alloy is carried out to study the morphology and element of fracture surface as well as the size and microstructure of hear affected zone. Then
compared with water-jet cutting
the influences of heat affected zone on single-direction tesile properties and fatigue life of specimen are analyzed
and the factigue fracture is studied using microscope.