As a rapidly developing advanced technology, rapid prototyping technology is widely used in many fields of production, and the popular result of this technology in furniture production is 3D printing furniture. In order to let you better understand the types and principles of rapid prototyping, we take the production of classical furniture model as an example to see its technical characteristics and look forward to the future furniture production.
Rapid prototyping technology, also known as rapid prototyping technology, was born in the late 1980s and has been considered as a major achievement in the manufacturing field for many years. It integrates mechanical engineering, CAD, reverse engineering technology, layered manufacturing technology, numerical control technology, material science and laser technology. It can automatically, directly, quickly and accurately transform the design idea into a prototype with certain functions or directly manufacture parts, so as to provide an efficient and low-cost implementation method for the prototyping of parts and the verification of new design ideas.
According to the different forming principles and materials, Shandong rapid prototyping process used in the current design and manufacturing process can be divided into the following four types:
1. Melting deposition process
Melt deposition (FDM) process is to melt the filiform thermoplastic material at a specific temperature to keep the material liquid and extrude it at a constant speed through the extrusion head. Under the control of molding data, selective deposition is carried out on the working platform, and immediately after deposition, it is cooled and solidified.
2. Stereoscopic light curing process
Stereolithography (SLA) process uses the material properties of photosensitive resin, that is, under the irradiation of UV light with a certain wavelength and intensity, it can realize the phase transition from liquid to solid. The trajectory of the UV beam is controlled by the molding data, and the photosensitive resin surface is selectively scanned to realize point by point curing molding.
3.3D printing process
The principle of three-dimensional printing (3DP) process is that powder materials are bonded and formed under the action of adhesives. First lay a layer of powder on the workbench, and then use the nozzle to distribute the adhesive to the powder area that needs to be formed, so as to realize the bonding and forming of powder.
4. Selective laser sintering process
The principle of selective laser sintering (SLS) process is the fusion of powder materials under laser sintering. First, lay a layer of powdery material close to the melting point on the workbench, and then selectively scan this layer of powder with a laser.
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