On the road to real applications, although there are lots of efforts focusing on mechanical and physical features in the literature, their machining abilities were examined in a very limited manner. In this study, machining properties of pumice reinforced AA7075 syntactic foams manufactured via the newly offered sandwich infiltration technique were investigated by performing face turning. Physical and microstructural (optical and SEM works) analyses were conducted on fabricated foams to carry out sample characterization. All machining forces were measured for different cutting speeds (25, 50, and 100 m/min) and feed rates (0.05, 0.10, and 0.15 mm/rev). After the turning operation, areal surface roughness values were measured using a 3D surface profilometer and material removal rate (MRR) values were calculated. Besides, chip mixtures including pumice and metal fragments were collected to probe chip morphology in detail. The results showed that machining forces were affected by the operation parameters differently, and the lowest surface roughness was detected at the cutting speed of 100 m/min and 0.05 mm/rev feed rate. Furthermore, the shape of the metal chips changed from long/continuous characteristic to saw-tooth morphology depending on increasing cutting speed levels while pumice particles exhibited breakaway tendency as the feed rates went up.

在通往实际应用的道路上，尽管文献中有很多关注机械和物理特征的努力，但对它们的加工能力的研究却非常有限。在这项研究中，通过执行面车削研究了通过新提供的夹层渗透技术制造的浮石增强 AA7075 复合泡沫的加工性能。对制造的泡沫进行物理和微观结构（光学和 SEM 工作）分析以进行样品表征。在不同的切削速度（25、50 和 100 m/min）和进给速率（0.05、0.10 和 0.15 mm/rev）下测量所有加工力。车削操作后，使用 3D 表面轮廓仪测量表面粗糙度值并计算材料去除率 (MRR) 值。除了，收集包括浮石和金属碎片的芯片混合物以详细探测芯片形态。结果表明，加工力受操作参数的影响不同，在切削速度为 100 m/min 和进给速度为 0.05 mm/rev 时检测到最低表面粗糙度。此外，随着切削速度的增加，金属切屑的形状从长/连续特征变为锯齿形态，而随着进给速度的增加，浮石颗粒表现出脱离趋势。