Rapid prototyping technology is also known as rapid prototyping manufacturing technology. Rapid prototyping equipment can directly, quickly and accurately transform the design idea or design scheme into the actual part prototype or directly manufacture parts through the processes of model establishment, approximate processing and slicing processing. It provides an efficient and low-cost implementation means for the prototype production of parts and the verification of design idea, and makes up for the shortcomings of traditional manufacturing methods.
Rapid prototyping technology is based on the principle of discrete / stacking forming. According to the 3D CAD model, the CAD model is layered according to a certain thickness, and the 3D model is changed into a 2D plane model with very thin thickness.
Then the data of the two-dimensional model is processed, and the machining parameters are added. Under the control of the NC system, each thin layer is continuously machined by plane machining and bonded to form.
There are many process methods for rapid prototyping. All rapid prototyping methods manufacture parts layer by layer. The difference is that each method uses different materials and bonding methods. Typical rapid prototyping technologies include light curing rapid prototyping (SLA), melt deposition (FDM), laser powder sintering (SLS) and laminated profile (LOM).
Compared with traditional processing methods, rapid prototyping technology has obvious advantages in speed, integration, applicability, adjustability and automation. For example, rapid prototyping technology realizes complete automatic molding, which only requires the operator to input relevant parameters, and the automatic operation of the whole process can be realized without too much interference.
With the development of rapid prototyping technology, it is widely used in mold manufacturing process. This technology can carry out rapid trial production of new products, and the production cycle is only about 1/4 of that of traditional technology, which can effectively improve the one-time success rate of mold manufacturing.
Shandong rapid prototyping technology integrates the conceptual design and production process of the mold in the CAD system, and uses computer simulation analysis to form a new mold design and manufacturing system. It can manufacture complex curved surfaces without NC machining, which is conducive to improving the manufacturing flexibility and quality of the mold.
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