REVIEW ON ADVANCES IN MANUFACTURING “ 4D PRINTING ”

3D printing, is additionally mentioned as “Additive Manufacturing Process”, move from digital blueprints to physical objects by crating them layer by layer. The 4D printing is predicated on this technology. along one major distinction: It utilizes exceptional materials and refined plans that are "customized" to incite your 3D print to shift its shape. In this way, essentially, 4D printing might be a headway of 3D printing wherein unique materials to print protests that change structure after creation. A trigger could even be water, warmth, wind and different sorts of energy.. 4D printing is also be an extra evolution of 3D printing and is  nearly close to completely alter how we create and produce materials by adding the dimension of transformation over time into the creation process