Mathematical Model for the Establishment of the Materials Machinability*

Application of the Performance Selection Index Method for Solving Machining McDm Problems

“…The machinability of a material represents complex technical characteristic, expressed by the measure in which the material can be satisfactorily machined [7]. The machinability aspect is of considerable importance since it is necessary for production engineers to know in advance the machinability of work materials so that machining can be planned in an efficient manner.…”

“…Enache et al [7] proposed a new mathematical model for the establishment of the partial and global machinability of materials. The mathematical model is verified experimentally in the case of turning of titanium alloys using different cutting tools of different geometries.…”

“…SEC and SR occur. Enache et al [7] determined criteria weights as w TWR =0.688, w SEC =0.231 and w SR =0.081 and the same were used by Rao and Gandhi [12], Rao [3] and Chakraborty and Zavadskas [4] while applying graph theory and matrix approach (GTMA), TOPSIS and WASPAS methods, respectively.…”

“…For solving these types of optimization problems, a number of methods have been developed and these are in literature known as multi criteria decision making (MCDM) methods. In open literature, solving machining MCDM problems using MCDM methods is mainly related to machinability of materials and selection of cutting fluids [1,[3][4][5][6][7]. Past research investigated the applicability of a number of MCDM methods including graph theory and matrix approach (GTMA), technique for order preference by similarity to ideal solution (TOPSIS), weighted aggregated sum product assessment (WASPAS), and preference ranking organization method for enrichment evaluation (PROMETHEE).…”

Machinability of C45e Steel - Application of Minimum Quantity Lubrication and High Pressure Jet Assisted Machining Techniques

“…Lee and Shaffer [17] suggested that machinability can be defined by the thermodynamic number. Enache et al [18] developed a global model of machinability which contains more criteria. Rao and Gandhi [19] used the principles of the matrix and graph theory for defining the absolute material machinability, named "matrix model".…”