Purposeful work of the enterprise on development of additive technologies has already delivered its benefits: For the first time in Kazakhstan on additive technology devices for full flight simulator of BTR-80, simulators for civil purposes KamAZ, Ural, Tigr, and other full flight simulators of Mi-8 helicopter, meeting all requirements of design documentation, have been produced. This project has been implemented by the Prototyping Center based on the technology of 3D scanning and printing by means of stereo-lithography within the state program of industrial-innovative development “Industrialization Map of the Republic of Kazakhstan”.
Additive technologies involve manufacture (construction) of the physical object (part) by means of layer-by-layer application (addition) of material, in contrast to traditional methods of forming the part by removing (subtraction) of material from the array of the workpiece.
The Center is equipped with advanced equipment and machinery and is one of the few areas in our country that performs all functions in the 3D sphere – scanning and processing, modeling of objects, visualization, 3D printing. The industrial spectrum of additive manufacturing technologies includes technologies of high-precision manufacturing of polymeric plastic products used for creation of functional prototypes, casework products of radio electronics, fasteners and air ducts of complex geometry, master models for casting, etc.
Our design and technological site-center is engaged in working out of the design and process documentation, selection of necessary method, equipment (CNC, 3D printer), working out of technological cycle of manufacture, beginning from raw materials and ending quality assurance of manufactured product. The site in its arsenal has a line of several types of 3D printers.
Stereolithography is one of the most precise technologies of layer-by-layer synthesis, based on layer-by-layer curing of liquid photopolymer resin, the beam of ultraviolet laser. The UnionTech RS3500 printer is the basic model of the company’s industrial stereolithography (SLA) printers. The device is designed for printing various photopolymer resins, including its own production, with high mechanical characteristics and heat resistance. The printer allows getting a variety of complex parts with high accuracy and with great time saving.
The technology of modeling by FDM fusion method allows to create three-dimensional objects by means of 3D-printing. As a consumable material, a plastic thread is used which melts, supplies to work surface and solidifies. So, the first layer is carried out, then from bottom to top by heating and extrusion of a thermoplastic thread the 3D-model is created.
Technologies for creating digital models of physical objects are an integral part of additive technology development. Optical 3D-scanning of objects is the process of obtaining a computer model based on the geometry of the studied product. 3D-scanner allows you to compare the digital model obtained by scanning, and CAD-model, on the basis of which this part was made on the CNC or 3D-printer. Besides, technologies of scanning of physical objects are in demand for reverse-engineering when there is a problem to develop an exact copy of physical object. The CAD-model received by method of 3D-scanning, allows to measure any geometrical parameters of products by means of computer algorithms, and also can be used for manufacturing a copy of a part on the 3D-printer.
The SolutionixRexcan CS+ 3D scanner is a 3D scanning model that combines a Rexcan CS 3D scanner and a fixed platform with workstation. Such combination gives a platform for realization of many plans. SolutionixRexcanCSPlus stably and easily provides high quality digitization of physical objects with the size to 300 mm. 3D scanner RexcanCXPlus provides high three-dimensional scanning. Scanning an entire object can be started with the push of a button. Special software scans and collects the results in a single model.
CreaformHandySCAN 3D Scanner
The first and only manual self-positioning 3D scanner that eliminates the need for fixed tripods, large mechanical arms or external positioning devices that virtually eliminate the need to scan in hard-to-reach places Unique object referencing system that allows you to move the object during scanning and observe the final surface formation in real time on the screen.
Another area of “rapid prototyping” is the production of “rapid fitting”. In some cases, “rapid fitting” is used at the pre-production stage of the project for the manufacture of parts not from model materials, and industrial plastics. Either for the manufacture of knowingly piece or low-volume products – 10-100 pcs.
The casting mould (matrix and punch) is “grown” on a 3D printer, brings the cleanliness of the mould surface manually, is installed on the injection molding machine and gets the final product. Application of methods of reception of casting synthetic moulds and synthesis models at the expense of technologies of layer-by-layer synthesis has allowed to reduce time of creation of new production drastically.
For example, to produce the first prototype of a part typical for the automotive engine industry – a cylinder block – the traditional methods require at least six months, with the main time spent on creating a model tooling for casting “in the ground”. Using technology of “growing” the castingpattern from photopolymer on the SLA-machine with the subsequent casting on the burned modelfor this purpose reduces the term of obtaining the first casting to two weeks.
Opportunities of design and technological department:
Design-technology module or CAD-module – development of 3D models of details, castings, fittings and others.
Computer modeling and design of assemblies and units for mechanical engineering;
3D printingmodule, professional SLA, FDM machines – printing prototypes and functional plastic parts with high precision;
Cast in silicone mould module – creation of silicone press moulds for further wax models or casting plastic and rubber parts from polyurethane compositions.
Burnable modelsmodule – direct production of burnable models for precision casting;
Manufacturing according to drawingsmodule – direct manufacturing of prototypes, functional metal parts, forming parts of fittings on CNC machines.
Synthesizing module – development and production of new materials / raw materials for 3D printers
3D visualization and modeling module – creating complete animation scenes.
