3D printing Australia, much like anywhere else around the world, is a dynamic industry serving as one of the important backbones of the business and manufacturing sector. As an additive manufacturing process, it involves the production of physical objects from a computer system’s input digital file.
What does “additive manufacturing” exactly means? It is a method of production of solid items carried out by adding the material’s successive layers until that object is fully formed into its proper shape or figure. These layers added successively are usually sheets of the material that will form the required shape by the designer.
Any 3D printing project commences with creating first a virtual design which can be done with the help of Computer Aided Design (CAD) software. Experts in the field of designing with CAD on their own personal computer first prior to uploading their print file into the 3D printer. Say for instance that you are wanting to print an existing object, there has to be a digital copy for that object first. So you have to use a 3D scanner for that object first prior to feeding that into a 3D modelling software. 3D printers are making use of different kinds of technologies to help them to put into reality a digital input file. We are going to tackle some of these technologies below.
Selective Laser Sintering or SLS
Powerful laser beams are involved in the use of SLS technology and they are helpful in fusing together the small particles of the object you are wanting to print. Some of the most widely used materials for this purpose includes ceramic, plastic, metals and glass. In powder form, they are being fed to the printer and it fuses them together after the layers generated by the 3D modeling system scanned them.
After scanning a layer, one layer of thickness is being added on the powder bed. This should in stepping up along the process in the production. This whole process will be repeated over and over until such time that the entirety of the object is completely finished. Should there be any excess amounts in the powder during the production of an object, it can be used for another production and get recycled.
This method greatly resembles the photo polymerization where from liquid you can produce something that is solid. This technology makes use of a vat of resin of ultraviolet curable photopolymer together with an ultraviolet later in building up the successive layer of an object.
In order to come up with a particular layer, a cross-section of your design on the liquid resin surface will be picked out by the laser beam. They will be exposed later on to ultraviolet light to cure and solidify it, prior to being added again to the previous layer.
Fused Deposit Modeling (FDM)
Involved with this technology is the use of a plastic filament or metal wire which are usually uncoined from its coil. They are being used to supply the necessary materials needed in an extrusion nozzle which can turn the flow on and off. You need to heat up the extrusion nozzle so as to melt the input material. It also comes with a mechanism that will allow it to move vertically or horizontally, and will do so depending upon the instruction it obtains from the CAM or computer-aided manufacturing software package. As the heated material is force its way out through the nozzle and form successive layers, its natural tendency is to harden up right away so that it will stick instantly to the previous layer that it produced.
In conclusion, the above mentioned technologies are 3 of the most employed technologies used by various 3D printer manufacturing firms. Even though each one of them is employing different 3D printing software tools in Australia, anyone can easily navigate their in using them.