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FDM Rapid Prototyping Process
May 21, 2018

FDM rapid prototyping process


Fused deposition molding works on the principle that the hot melt material (ABS, wax) is melted by a heater, the material is first drawn into a filament, and fed into a hot melt nozzle through a wire feeding mechanism, and is heated and melted in the nozzle, and the nozzle is along the part section. Contour and fill trajectory movement, while the semi-fluid state of the material in accordance with the CAD layered data control path extrusion and deposition in the designated location solidification forming, and bonding with the surrounding materials, stacked layer forming.


The melt extrusion molding process is more suitable for the development of new products in household appliances, office supplies, and mold industries, as well as for the production of three-dimensional solid model based on digital imaging technology for prosthesis, medicine, medical treatment, geodetic measurement, archeology, and the like. This technology does not require a laser system and therefore is inexpensive, has low operating costs and is highly reliable.


Currently, it has played an important role in the following areas in industries such as automobiles, home appliances, power tools, medical care, machining, precision casting, aerospace, crafts, and children's toys.


1.Product samples, design reviews, performance tests, and assembly experiments. The user reviews the design plan according to the rapid manufacturing molding, simulates the performance test and simulates the assembly test, then evaluates the possibility of production, and finally provides the improvement information to the designer for later modification and optimization.


2.Combining FDM technology with traditional mold manufacturing technology, rapid mold manufacturing technology can shorten the development cycle of the mold and increase production efficiency.


3.In the field of biomedicine, based on the human layered cross-sectional data obtained by scanning, a model of the human body's local tissue or organ is created, which can be used for the diagnosis of complex surgical procedures for the diagnosis of clinical medicine, ie the manufacture of anatomical in vitro models (in vitro models) Tissue engineering cell carrier scaffolds (human organs) can also be manufactured as a key technology in biomanufacturing engineering.


4.In terms of micro-mechanics, using certain processing methods, such as photo-curing methods, rapid prototyping manufacturing techniques can be used for the manufacture and assembly of micro-machines.


5.In other areas, such as rapid prototyping technology can also be used to reproduce artifacts, make prototypes for crafts, exhibition models, etc.