ABSTRACT
Machined part accuracy is affected by the machine tool, part and fixture stiffness, cutting tool characteristics, cutting conditions, ambient environment, and external vibrations (Figure 16.1). Many key factors such as resolution of the machine tool, the type of workpiece, the machining sequence and program, the cutting tools and cutting conditions, the fixture characteristics, etc., are generally determined based on previous experience, modeling, or analysis as discussed in previous chapters. However, once these parameters are defined, the accuracy and repeatability of the machine tool will determine its ability to precisely position the cutting tool tip at the specified part location. Therefore, the machine tool characteristics have a major contribution to part accuracy and thus are analyzed in the chapter.
