Open Access
Review
Table 5
Classification of the of the modelling studies on the SLM AM process.
| Reference number | KPI | Process parameter (Variable) |
|---|---|---|
| [55] | Surface roughness | Surface sloping angle |
| [56] | Porosity, roughness | Scanning speed, powder layer thickness, laser power |
| [31] | Residual Stresses | Exposure strategy of the laser beam |
| [32] | Residual stresses, distortions | |
| [57] | Melt pool width | Scanning speed |
| [58] | Stress field, thermal history, | Laser scanning speed |
| [59] | Rate of temperature change, melt penetration/width, percentage of evaporated powder, build rate, volume shrinkage | Distance from melt pool, laser power, scan speed |
| [60] | Track formation shape | Laser power, scan speed |
| [61] | Melting, wetting, solidification | Powder-layer thickness, moving heat source intensity, scan spacing, scanning velocity |
| [62] | Residual stresses, tensile stress | Heating of base plate, heat treatment type, re-scanning |
| [63] | Stiffness, yield strength, plateau stress, energy absorbed, densification strain | Unit cell aspect ratio |
| [41] | System temperature | |
| [49] | Heat transfer related | |
| [50] | Part Temperature history | Layer position in the part under construction |
| [64] | Temperature, melt pool, liquid lifetime | Scan speed, laser power |
| [65] | Width of the melt track, temperature distribution | Scan speed, laser power |
| [66] | Melting depth/width, temperature distribution | Scanning speed, laser power |
| [67] | Absorbed lateral radiation | Beam shape characteristics |
| [68] | Effective thermal conductivity of support structures, temperature | Volume fraction, number of cells |
| [69] | Thermal modelling, melt pool shape characteristics | Evaporation, laser power |
| [70] | Thermal history, melt pool dimensions, computational speed | Laser power, scan speed, meshing size adaptation |
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