Abstract
AbstractUsing additive manufacturing technology, objects can be created layer wise by a single machine rather than utilizing molds and dies. A digital-projection light source is used to cure the surface of a liquid photopolymer in digital light processing (DLP) technique. This method is best for items with complicated structures and small cross-sectional areas that demand a high level of surface finish and strength. Objects are created for variety of angles using a variety of input parameters. 3D printing technologies based on DLP printing are commonly utilized to fabricate complex items without the use of tools or machining. Numerous variables influence the design of 3D printed parts, and they differ for each design and process. The layer thickness, pattern diameter, pattern spacing, and hollow thickness are the initial factors to be considered for DLP printed test coupons. In the present paper, DLP 3D coupons are printed using ultraviolet sensitive resin (λ = 405 nm). The primary objective of the work is to study the influence of support orientation on the surface finish and toughness of the DLP 3D printed test coupons as per ASTM standards.KeywordsAdditive manufacturingDLPHardnessSurface roughnessImpact strength ultraviolet-sensitive resin
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