24-03-2012, 01:26 PM
Rapid prototyping
RIPED PROTOTYPE.ppt (Size: 1.73 MB / Downloads: 105)
Technology which considerably speeds the iterative product development process
Classification of Rapid Prototyping
Rapid prototyping is classified to 3-major groups
Subtractive ( Removal of material )
Additive ( Adding of material )
Virtual ( Advanced computer base visualization)
Additive Process
Build parts in layer by layer (slice by slice as stacking a loaf of bread)
The computational steps in producing a stereolithography file a) Three dimensional description of part b)The part is divides into slices (only one in 10 is shown) c)support material is planned d)A set of tool directions is determined to manufacture each slice. Shown is the extruder path at section A-A from c) For a fused-deposition-modeling operation
Fused Deposition Modeling
A gantry robot controlled extruder head moves in two principle directions over a table
Table can be raised or lowered as needed
Thermo plastic or wax filament is extruded through the small orifice of heated die
Initial layer placed on a foam foundation with a constant rate
Extruder head follows a predetermined path from the file
After first layer the table is lowered and subsequent layers are formed
RIPED PROTOTYPE.ppt (Size: 1.73 MB / Downloads: 105)
Technology which considerably speeds the iterative product development process
Classification of Rapid Prototyping
Rapid prototyping is classified to 3-major groups
Subtractive ( Removal of material )
Additive ( Adding of material )
Virtual ( Advanced computer base visualization)
Additive Process
Build parts in layer by layer (slice by slice as stacking a loaf of bread)
The computational steps in producing a stereolithography file a) Three dimensional description of part b)The part is divides into slices (only one in 10 is shown) c)support material is planned d)A set of tool directions is determined to manufacture each slice. Shown is the extruder path at section A-A from c) For a fused-deposition-modeling operation
Fused Deposition Modeling
A gantry robot controlled extruder head moves in two principle directions over a table
Table can be raised or lowered as needed
Thermo plastic or wax filament is extruded through the small orifice of heated die
Initial layer placed on a foam foundation with a constant rate
Extruder head follows a predetermined path from the file
After first layer the table is lowered and subsequent layers are formed