PROJECT 2

Product that we are manufacturing: Propellar

There were a few processes that we could have done for this part, but we narrowed it down to the best solution which is:

Fused Depostioning Manufacturing (FDM)

Design Information: How is it Transmitted

• an .stl file is made in an AutoCad software program
• the program quickslice then slices the model into layers for the building process.
• the program determines whether external supports are needed

How Does This Process Work and How Are the Parts Built?

• the process used is a heated material extrusion process
• there are two main structures: support bed and extrusion head assembly
• the extrusion head is guided along three axes and deposits the semi-liquid material on a flat base in thin layers
• the thin base layers move down to prepare for the next layer which bonds to the previous to form a solid

Size and Shape Limitations of FDM

• varies with tthe time of the machine
• ranges from 12" x 8" x 8" to 23.6" x 19.7" x 23.6" with an accuracy of 0.005"
• up to five files can be done at once, if they fit into the space
• no hollow shapes

Materials Used By This Process:

• must be able to have a melting pointe between 180 and 220 degrees Farenheit, so that they are liquid when extruded
• thermoplastics: ABS plastic, ABS medical plastic, elastomers, investment casting wax, polyethylene, and polypropylene

Cost and Time:

• depends on the size of the object
• the material wafers are about $2 each
• the product usually ends up costing under $50

Some links to find out more about Fused Depostion Manufacturing:

GO TO STRATASYS

Fused Deposition

Deposition Systems

 

Email the TEAM:

Kristin Paluchak Emily Hunter