Rapid Prototyping

Rapid PrototypingCAMContentsDefinitionBasic CategoriesStarting Materials in Material Addition RPThree Dimensional Printing (3DP) - Definition - StepsQuestions and answers (Q&A)

DefinitionA family of fabrication processes developed to make engineering prototypes based on a CAD model of the item.

Traditional method of fabricating a prototype is machining.

Basic CategoriesMaterial removal RP - machining, using a dedicated CNC machine

Material addition RP - adds layers of material one at a time to build the solid part from bottom to top.

Starting Materials in Material Addition RP LiquidPowdersSolid sheetsThree Dimensional Printing (3DP)

Three Dimensional Printing (3DP) Starting materials are powders

Part is built layer-by-layer using an ink-jet printer

Binder is deposited as determined by slicing the CAD geometric model into layers.

Three Dimensional Printing (3DP) The binder holds the powders together to form the solid part, while the unbounded powders remain loose to be removed later.

To further strengthen the part is heat treated to strengthen the bonding.

MaterialCurrently, plastics are the most widely used materials in additive manufacturing, and the important ones are listed below: ABSPLA PVA The StepsFive-step process. The steps are:1. Create a CAD model of the design2. Convert the CAD model to STL format3. Slice the STL file into thin cross-sectional layers4. Construct the model one layer atop another 5. Clean and finish the model

Three Dimensional Printing (3DP)

3DP Steps(1)powder layer is deposited(2) ink-jet printing of areas that will become the part(3) piston is lowered for next layer.

ApplicationsDesign. Engineering analysis and planning. Tooling. Manufacturing.

Q&A1- What is prototyping ?A family of fabrication processes developed to make engineering prototypes based on a CAD model of the item.

2- what is Traditional method of fabricating a prototype ?Traditional method of fabricating a prototype is machining.

3- what is the basics categories of RP ?Material removal RP - machining, using a dedicated CNC machine Material addition RP - adds layers of material one at a time to build the solid part from bottom to top.

4- What is the Starting Materials in Material Addition RP?LiquidPowdersSolid sheets

5- Describe the 3DP process.Part is built layer-by-layer using an ink-jet printer, Binder is deposited as determined by slicing the CAD geometric model into layers.

6- Illustrate the steps of 3DP using neat sketch.

(1)powder layer is deposited(2) ink-jet printing of areas that will become the part(3) piston is lowered for next layer.

7- what are the applications of RP ?Used in Design. Engineering analysis and planning. Tooling. Manufacturing.