![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
7. Conclusion
By eliminating the need to manufacture objects layer by layer, volumetric stereolithography produces 3D objects as a unitary operation. Several methods for localizing energy in a volume (rather than on a surface) have thus been developed: superimposition of optical fields, concentration of beams, simultaneous production of free radicals carrying polymerization chains and inhibiting this same polymerization, exploitation of the non-linearities of polymerization reaction kinetics, and so on. Currently, volume additive manufacturing can produce complex parts at high throughput (> 10
5
mm
3
per hour according to Huang, Qin and Wang
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