Advantages And Disadvantages Of The Melt Deposition Molding (FDM) Process Advantage (1) Due to the simple construction principle and operation of the hot melt extrusion head system, the maintenance cost is low and the system is safe to operate. (2) The molding speed is fast. The product produced by the fused deposition method does not…
DetailsSelective Laser Powder Sintering (SLS) Process The SLS process is called selective laser sintering and was developed in 1989 by C.R. Dechard of the University of Texas at Austin. The SLS process is formed from a powdered material. The principle is to spread the material powder on the upper surface of the formed part and…
DetailsSLS Process Characteristics The SLS process is characterized by a wide range of materials, not only for the manufacture of plastic parts, but also for the manufacture of ceramic, wax and other materials, in particular for the production of metal parts. This makes the SLS process attractive. The SLS process does not require support because…
Details3D Printing (3DP) Process The three-dimensional printing process was developed by the Massachusetts Institute of Technology E-manual Sachs et al. It has been commercialized by Soligen Corporation of the United States under the name of DSPC (DirectShell Production Casting) to manufacture ceramic shells and cores for casting. The 3DP process is similar to the SLS…
DetailsLight Curing (SLA) Technology SLA technology works on the principle of photopolymerization of liquid photosensitive resins. The liquid material can rapidly undergo photopolymerization under the irradiation of ultraviolet light of a certain wavelength and intensity, and the molecular weight sharply increases, and the material changes from a liquid state to a solid state. The laser…
DetailsAdvantages And Disadvantages Of Light Curing (SLA) Technology The SLA method is currently the most studied method in the field of rapid prototyping technology and the most mature method in technology. The parts formed by the SLA process have high precision, the processing precision can generally reach 0.1mm, and the raw material utilization rate is…
DetailsLayered Solid Manufacturing (LOM) Process The LOM process is called laminated solid manufacturing or layered solid manufacturing, and was developed in 1986 by Michael Feygin of Helisys, USA. The LOM process uses sheet materials such as paper, plastic film, and the like. The surface of the sheet is previously coated with a layer of hot…
DetailsRapid Prototyping Process First, the construction of the 3D model of the product Since the RP system is directly driven by the 3D CAD model, it is first necessary to construct a 3D CAD model of the workpiece being machined. The three-dimensional CAD model can be directly constructed by computer-aided design software (such as Pro/E,…
DetailsImportant Features Of Rapid Prototyping Technology 1. Can make arbitrarily complex 3D geometric entities Thanks to the principle of discrete/stacking, it simplifies a very complex 3D manufacturing process into a superposition of 2D processes, enabling the machining of arbitrarily complex shaped parts. The more complex the part, the more it shows the superiority of RP…
DetailsLaser Curing Rapid Prototyping Materials Photosensitive resin is a substrate that is laser-cured and rapidly formed, and its performance characteristics have a decisive influence on the quality of the molded part. Photocuring resins using SL should generally have the following properties: (1) The viscosity is low, and the low-viscosity resin is favorable for the faster…
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