Analysis of Hole Quality and Chips Formation in the Dry Drilling Process of Al7075-T6

Millions of holes are produced in many industries where efficient drilling is considered the key factor their success. High-quality possible with proper selection process parameters, appropriate tools, and machine setup. This paper deals effects parameters such as spindle speed feed rate on chips analysis hole quality like surface roughness, size, circularity, burr formation. Al7075-T6 alloy, commonly used aerospace industry, was for process, dry experiments were performed using high-speed steel drill bits. Results have shown that roughness decreased increase increased rate. The size high speed, whereas impact circularity error found insignificant. Furthermore, short segmented achieved at a low speed. percentage contribution each input parameter output evaluated variance (ANOVA).