Which kind of 3D printing technology belongs to, and what are the classifications of 3D printing tec

3D printing, a type of rapid prototyping technology, is a technology that uses adhesive materials such as powdered metal or plastic to construct objects based on digital model files.

3D printing is usually achieved by using digital technology material printers. In the past, it was often used to make models in the fields of mold making and industrial design, but now it is gradually being used in the direct manufacturing of some products, and there are already parts printed using this technology.

3D printing (3DP) is a type of rapid prototyping technology, which is a technology that uses adhesive materials such as powdered metal or plastic to construct objects based on digital model files.

3D printing is usually achieved by using digital technology material printers.

Rapid prototyping (RP) technology is an advanced manufacturing technology developed in the nineties, and is a key common technology for the development of new products for manufacturing enterprises, which has a positive role in promoting product innovation, shortening the new product development cycle and improving product competitiveness. Since the advent of this technology, it has been widely used in the manufacturing industry in developed countries, and a new field of technology has emerged from it.

It can directly accept product design (CAD) data without the need to prepare any molds, tools and fixtures, and quickly manufacture prototypes, molds or models of new products. Therefore, the popularization and application of RP technology can greatly shorten the development cycle of new products, reduce development costs, and improve development quality. by the traditional"Removal method"to this day"Growth method"From molded manufacturing to moldless manufacturing, this is the revolutionary significance of RP technology to the manufacturing industry.

1. The full name of FDM is 'fuseddepositionmodeling', which translates to: fused deposition molding technology.

The FDM fusion lamination molding technology of 3D printing is to heat and melt the filamentous hot melt material, and then the three-dimensional nozzle is applied to the workbench according to the cross-sectional contour under the control of the computer, just like squeezing toothpaste; Once one layer is formed, the machine table descends one height (i.e. layer thickness) to form the next layer until the entire solid shape is formed. The principle is as follows:

**。2、sla

The full name is 'stereolithography', which translates to: photosensitive resin selective curing technology.

The principle of this 3D printing technology generally uses photosensitive resin materials, and the printing process is as follows: the machine emits a laser beam and scans along the liquid surface according to the three-dimensional cross-sectional profile in the computer; The photosensitive resin will cure quickly when it encounters a specific wavelength of light beam, resulting in a thin section of the section; The workbench lowers the height of the thickness of one layer of cross-section, and then solidifies another layer of cross-section, so that the reciprocating layers are superimposed to form a three-dimensional solid. The dynamic schematic is as follows:

**。3、sls

The type and principle of SLS's 3D printing technology is very similar to SLA, the biggest difference is the material, one is liquid, and the other is solid (powder). The molding principle and process of this technology are as follows:

A layer of powder lays down the upper surface of the molded part and is heated to a temperature just below the sintering point of the powder;

The system controls the laser beam to scan the powder layer according to the three-dimensional cross-sectional profile in the computer, so that the temperature of the powder rises to the melting point, sinters and bonds with the formed part below;

After one layer is completed, the workbench lowers the thickness of one layer, and the spreading roller spreads a layer of uniform dense powder on top of it, and a new layer of cross-section is sintered until the whole model is completed.

Depending on how you divide it, it is divided into industrial 3D printers according to the original printing purpose: printer printer 3DLP 3D printer printer, etc.

Desktop-class educational 3D printers, commercial and 3D printers.

fdm、sla、dlp、sls、slm。Basically, there are more of these categories on the market now.

There are two main types of Aurora Erwo 3D printers: FDM and SLA. The machine is stable.

3D printing (3DP) is a type of rapid prototyping technology, which is based on digital model files, using adhesive materials such as powdered metal or plastic, to construct objects by printing layer by layer.

3D printing is usually achieved by using digital technology material staging stove printers. It is often used in mold manufacturing, industrial design and other fields to make models, and then gradually used in the direct manufacturing of some products, and there are already parts printed using this technology. The technology is used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical production or manufacturing, education, GIS, civil engineering, firearms, and other fields.