Additive Manufacturing

Additive ManufacturingProf. J. RamkumarDepartment of Mechanical EngineeringIIT KanpurOctober 3, 2017 OutlineIntroduction to Additive ManufacturingClassification of Additive Manufacturing SystemsIntroduction to Reverse EngineeringAdditive ManufacturingIAdditive Manufacturing (AM) refers to a process by whichdigital 3D design data is used to build up a component inlayers by depositing term AM encompasses many technologies includingsubsets like 3D Printing, Rapid Prototyping (RP), DirectDigital Manufacturing (DDM), layered Manufacturing andadditive application is limitless. Early use of AM in the form ofRapid Prototyping focused on preproduction visualizationmodels. More recently, AM is being used to fabricate end-useproducts in aircraft, dental restorations, medical implants,automobiles, and even fashion Manufacturing structure of Additive Manufacturing and itssubcategoriesSome ExamplesSome Examples Examples Examples vs Subtractive ManufacturingAdditive vs Subtractive Manufacturing of AM TechnologiesEvolution of AM Technologies and Potential industries for AdditiveManufacturingPros and Cons of AMAM Benefits: Weight ReductionAM Benefits: Complexity for FreeAM Benefits: Customized Medical ProductsFuture: Home ManufacturingGeneric AM ProcessGeneric AM process path for a

additive manufacturing processes, the 3D CAD solid must be mathematically split into the same layers as those produced physically by the AM machine. This process is known as "slicing." I There are two basic methods of doing this: 1) Triangulation, which leads to the STL format 2) Direct cutting in the CAD system, which leads to the CL (SLI) format

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