fused deposition modeling, or fdm, is a layeradditive manufacturing process that uses production-grade thermoplastic materials to produce both prototypeand end-use parts. this technology is known to accurately producefeature details and has an excellent strength-to-weight ratio.fdm is ideal for concept models, functional prototypes, manufacturing aids and low-volumeend-use parts. the fdm process begins by "slicing" 3dcad data into layers. the data is then transferred to a machinewhich constructs the part layer by layer upon a build platform.thin thread-like spools of thermoplastic and support material are used to create each cross-sectionof the part.
similar to a hot melt glue gun, uncoiled materialis slowly extruded through dual heated nozzles. the extrusion nozzles precisely lay down bothsupport and thermoplastic material upon the preceding layers.the extrusion nozzle continues to move in a horizontal x-y plane and while the buildplatform moves down, building the part layer by layer.the finished part is removed from the build platform and cleaned of its support material.raw fdm parts have visible layer lines. however, service providers such as solid conceptsoffer multiple finishing options to create smooth, even surfaced parts including handsanding, assembly and cosmetic paint.
ppt on 3d printing technology,since fdm parts are constructed with production-gradethermoplastics including abs, polycarbonate
and ultem, they are both functional and durable.fdm is utilized in a number of industries including aerospace, automotive, industrial,commercial and medical. http://www.solidconcepts.com
