• Anqing CSSC Diesel Engine Power Matching Co., Ltd

    3D Technology Introduction

    3D printing (3DP) is a rapid prototyping technology, it is a digital model based on the file, the use of powdered metal or plastic and other adhesive materials, through the layers of the way to build objects to the technology.

    3D printing is usually done using a digital technology material printer. Often in the mold manufacturing, industrial design and other fields are used to manufacture the model, after the gradual use of some products for the direct manufacture, has been used to print this technology from the parts. The technology is used in jewelry, footwear, industrial design, construction, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms and other fields.

    Print process

    Three-dimensional design

    Three-dimensional printing design process is: first through the computer modeling software modeling, and then build the three-dimensional model "partition" into a layer by layer, that is, slices, to guide the printer layer by layer printing.

    The standard file format for collaboration between the design software and the printer is the STL file format. An STL file uses a triangular face to approximate the surface of an object. The smaller the triangular surface, the higher the resulting surface resolution. PLY is a scanner that generates 3D files by scanning, and its generated VRML or WRL files are often used as input files for full color printing.

    Slice processing

    The printer prints the sections in layers by liquid, powdery or sheet-like materials by reading the cross-section information in the document, and then laminating the sections in a variety of ways to create an entity. This technique is characterized by its ability to create almost any shape of the article.

    The thickness of the cross section of the printer (ie, the Z direction) and the plane direction, that is, the resolution in the X-Y direction, is calculated in dpi (pixels per inch) or micron. The general thickness of 100 microns, that is 0.1 mm, there are some printers such as ObjetConnex series and three-dimensional Systems' ProJet series can print a thin layer of 16 microns. And the plane direction can be printed with the laser printer similar to the resolution. The printed "ink droplets" are usually 50 to 100 microns in diameter. Creating a model in a traditional way usually takes several hours to several days, depending on the size of the model and the complexity. And three-dimensional printing technology can be shortened to a few hours, of course, it is by the printer's performance and model size and complexity of the.

    Traditional manufacturing techniques such as injection molding can produce polymer products at a low cost, while 3D printing technology can produce relatively small quantities of products with faster, more resilient and less costly methods. A desktop size of the three-dimensional printer can meet the needs of designers or concept development team manufacturing model.

    Complete the print

    The resolution of a 3D printer is sufficient for most applications (which may be rough on a curved surface, like a sawtooth on an image). To get a higher resolution item can be done by using the current three-dimensional printer Playing a slightly larger object, and then slightly through the surface polished to get the surface smooth "high-resolution" items.

    Some techniques can be printed at the same time using a variety of materials. Some techniques use the support during printing, such as the need to use something that is easy to remove (such as soluble things) as a support when printing something that has an upside-down.