3D printing technologies – 3D4ALL

The 3D printing industry has witnessed remarkable growth in recent years, revolutionizing the possibilities for creating objects. This rapid development has introduced a multitude of techniques to transform raw materials into finished products. Some of these methods involve melting or softening materials to build objects layer by layer, with technologies like FDM (Fused Deposition Modeling) and SLS (Selective Laser Sintering) leading the way as some of the most prevalent in the field. Below, we’ll take a closer look at the most widely used 3D printing technologies and explore their unique features in greater detail.

FDM – Fused Deposition Modeling – Thermoplastic Extrusion Modeling

Rapid prototyping technologyA FDM (fused deposition modeling), In translation Modeling by thermoplastic extrusion (deposition of molten material) is the most usedA additive manufacturing technologyA Thank youA simplicity ANDamong other things accessibilityATIII This. It is usedyour Iin modeling, in prototyping but ANDI INo applications From production. Other names used are: MEM (Melting Extrusion Modeling), thermoplastic extrusionA TPE (Thermoplastic Extrusion), FFF (Fused Filament Manufacturing).

With the help of a applications dedicated software, the desired 3D model is sliced initial Iin cross sections called layers. Consistent printing technologyA in the passage of a plastic filament through an extruder Ithe warm up Puntil lof the melting point, applying it then uniformly (by extrusion) layer upon layer, with sea precision to physically print the compliant 3D model the file CAD.

The head (extruder) is heated to melt the plastic filament, moving-if BOTH horizontallyA As ANDI’m verticalA under the coordination of a command mechanismA numericAdirectly controlled by APPLICATION Printer CAM. Iin movement the head deposits a ANDit is a thin extruded plastic that the cooling with strengthens immediately, attaching to the previous layer to form the desired 3D model

SLA – Stereolithography – Stereolithography

Stereolithography (SLA or SL) is a rapid prototyping technologyA usedA on a large scaleA bigA Iin the industrial environment for implementation diesmodels ANDand also the components functional. KnownA ANDand under the name of photosolidification or optical fabricationA stereolithography involvedA using a laser beam with lightA ultravioletA for the solidification of a resins liquid photopolymers found In cave of construction of the printer. Under the action ultraviolet laser light This resin negotiableA (sensitiveA to ultraviolet lightA) is solidA Iin successive layers give– then the solid 3D model.

The desired 3D model is cut initial INo section transversal that traces the laser beamA on the surfaceyour resin liquids. Exposure to ultraviolet laser lightA solidify the designed model resin liquidA resulting a solidly constructed (3D printed) layer that is addedA to the previous built level.

DupA END Buildingthe 3D model obtained this immersed Iin a bathroom CHEMICAL separateAFor Cancellation the excess of resin dupA that is treated Iin an oven with radiation ultraviolet for reinforcements finalA.

DLP – Digital Light Processing – Digital ExpunereaA of light

DLP (Digital Light Processing) printing technology representsA an additive manufacturing processA based on using UV light to solidify some of them resins liquid polymers. DevelopedA by Texas Instruments, DLP technology has as its main element the DMD chip (Digital Micromirror Device) – an array of micro-mirrors used for fast spatial modulationA of light.

Initialthe 3D CAD model is converted by the 3D printer software application INo section transversal (slices) of the object, then the information is sent to the printerA ANDand the DMD chip.

For each section transverseA of 3D CAD model, UV light emittedA by a projector it is modulatedA ANDand designedA via the chip on surface resin found polymericAnd In cave of construction. Every micromirrorA individualA of the DMD chip designA pixels from section transverseA of the 3D model. Under the action UV light, resin liquidA photoreactiveA (sensitiveA to ultraviolet lightA) is solidA Iin successive layers.

Why Ithe whole centuryANDa transverse oneA it is designedA Intr-or separateA exposure, speed of construction of a layer (section) is constantA regardless of the complexity of the geometry. Regardless cA a simple piece is printedA or 10 complex parts at the same time, the printing speed remains constantA.

SLS – Selective Laser Sintering – Selective Laser Sintering

Rapid prototyping technologyA SLS (Selective laser sintering), translatedA by selective laser sinteringAit was patentedA THE END the 80s ANDand it’s closeA of ALS. ON NEAR the SLS name if usage on the ladderA bigA ANDand the generic nameA LS (Laser sintering) or laser sintering.

SLS technology inclA the use of a high-power laser beam (e.g. a CO2 laser) to melt (sinter) some powders Iin successive layers give– then the desired 3D model.

The desired 3D model is converted initial INo section transversal (slices) of the object ANDthen sent to the printer. On the basis OF INFORMATION received, the moving laser beam loose Selectively (sinter) the powder layer on the platform construction from inside the tub, second EVERYTHING IS FINE section transverse.

DupA END the sectionit is the platform on which 3D models are built DESCEND in VAT As SA can drinkA be accomplishedA following section transverse. I’m applyingA a new layer of powder which will then be uniformedA dupA which the process repeatsA Until at the end Inaccording to 3D model trade the file CAD.