Analysis of defects on machined surfaces of aluminum alloy (Al 7075) using imaging and topographical techniques

Aluminum alloys 7075 (Al 7075) are widely used for various industrial components in which machining operations often conducted during their manufacturing process. However, the could introduce defects on machined surfaces of will be carried over and may lead to either issues subsequent fabrication process or failure products' service life. This study investigates surface's Al underwent drilling using imaging topographical techniques include optical microscope, scanning electron microscope 3D surface profiler. Surface roughness was analysed with respect investigate correlation between parameters features surfaces. The found microcrack, adhesion, feed mark burr. highly influenced by particularly mark. Thus, addition measuring roughness, inspection through topographic is important analyzing characteristic order determine defects, hence deducing detailed deformation caused operations.