“…Many life attributes can be also determined by how well the surface finish is maintained. Many surface roughness prediction systems were designed using a variety of sensors including dynamometers for force and torque (Lin et al, 2001;Azouzi and Guillot, 1996), accelerometers for mechanical vibrations (Abouelatta and Madl, 2001;Choudhury and Sharat, 1993;Jang et al, 1995;Kirby et al, 2006), acoustic emission for (AE) sensors (Sundaram et al, 2007;Sundaram et al, 2008;Collacott, 1975) and current probes for current/power measurement of spindle and feed motors (Sundaram et al, 2008). The purpose of using these sensors in machining processes is to increase part quality while decreasing cost and time of manufacture.…”