Page 177 - DJJ 40173 compile notes - E-BOOK NEW EDIT WITH INDEX_Neat

Material Extrusion

◦ This common AM process uses spooled polymers which are either extruded or
drawn through a heated nozzle which is mounted on a movable arm.

◦ This builds melted material layer by layer as the nozzle moves horizontally and
the bed moves vertically.

◦ The layers adhere through temperature control or chemical bonding agents.

◦ The Material Extrusion process uses polyers and plastics. Eg.;Polymers: ABS,

Nylon, PC, PC, AB

◦ Fuse deposition modelling (FDM) is a common material extrusion process and

is trademarked by the company Stratasys.

Figure 3.0 : Material Extrusion