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Advantages And Advantages Of Sla Rapid Prototyping
Jun 15, 2017

Sla rapid prototyping technology (also known as light curing rapid prototyping technology) is based on the principle of photopolymerization of liquid photosensitive resin work. This kind of liquid material in a certain wavelength and intensity of ultraviolet light (such as λ = 325nm) irradiation can occur under the rapid photopolymerization, molecular weight increased dramatically, the material from liquid to solid. Its core technology is computer technology and material technology. Laser molding technology to abandon the traditional mechanical processing methods, according to CAD parts generated geometric information, control three-dimensional CNC forming system, through the laser beam to the material accumulation and the formation of parts. Molded in this way, without the need for time-consuming, costly mold or special tool design and machining, greatly improving the production efficiency and manufacturing flexibility.

Sla Rapid Prototyping Laser Principle:

First, in the liquid tank filled with liquid light curing resin, the laser beam under the action of the deflection mirror, the liquid surface can scan, scan the trajectory and the presence or absence of light by the computer control, spot hit the place, the liquid Curing. At the beginning of the molding, the working platform is at a defined depth under the liquid surface, and the focused spot is scanned at the liquid level by the computer's instructions, that is, point by point. When a layer of scanning is completed, the place where it is not irradiated is still a liquid resin. And then lift the platform to drive the platform down a layer of height, has been formed on the level of a layer of resin covered with a high degree of viscosity of the resin surface flattened, and then the next two layers of the scan, the new solidified layer Firmly attached to the previous layer, so repeated until the entire part is manufactured, get a 3D solid model SLA process forming parts with high accuracy.

SLA rapid prototyping features:

1, high precision machining, can reach 0.1mm;

2, can create a complex shape (such as hollow parts), especially fine (such as jewelry, handicrafts, etc.) parts, suitable for mobile phones, radios, walkie-talkie, mouse and other fine parts and toys and high-tech electronics industry, Models, motorcycles, auto parts or models, medical equipment, etc.

3, manufacturing parts speed, can be 0.1-0.15mm layered scan;

4, the surface quality is good, can produce very fine details of thin Bi structure, post-processing easily;

5, processing in place, a lot of CNC hand processing can not be processed part of the details can be processed, thereby reducing the workload of the post-processing;

6, shortcomings: laser molding selected photosensitive resin material is relatively simple, and SLA hand plate toughness and strength are not as good as CNC hand plate, buckle easy to break.

SLA rapid prototyping materials (photosensitive resin) features:

Similar to the traditional engineering plastic ABS, with a certain viscosity of the transparent or beige liquid, made of the workpiece is translucent or beige, the strength is better, can be assembled, playing tapping screws, painting, silk screen, the disadvantage is intolerable high temperature.

Our company has a first-class SLA rapid prototyping center, with many years of SLA laser molding experience, to complete the various products SLA rapid prototyping services, production accuracy up to ± 0.1mm.