**3. Conclusions**

Many researchers have studied work on pocket machining with an aim to improve the process in terms of surface quality, the accuracy of pockets and machining time. 2.5D pocket machining has proved to be an efficient process for high-speed machining.After a detailed investigation of the published work, the following conclusions were developed from the existing published work:


*A Review for Feed Rate Optimization of Spiral Tool Path Using Cutter Engagement Angle… DOI: http://dx.doi.org/10.5772/intechopen.81083* 
