Application of the hottest laser sintering technol

2022-08-02
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The application of laser sintering technology in manufacturing

electronic manufacturing means that rapid, flexible and cost-effective production can be carried out directly from 3D CAD data

many industries are faced with the problem that the production cycle of products is becoming shorter and the development cycle continues to rise. In addition, customers began to demand that products be made according to their requirements. As a result, many companies are not ready to develop a product when the customer requires it. To avoid this disadvantage, many companies have added a considerable number of product parameters to their business. This leads to an increase in the complexity of product development, production and sales without an increase in market opportunities. In this way, the profit time of each commodity put into the market becomes shorter

a possible solution is to adopt new means to develop, produce and sell products. The common feature of these means is that they rely heavily on customers to participate in the process of adding value to the company. The extreme case is the so-called "open technological innovation". The customer cooperates with the company to create his/her own technological innovation. However, "open technological innovation" requires a production method that can support intuitive product design. Laser sintering is such a technology. It allows production directly from CAD data, so it allows free design, because product design is not restricted like the traditional design process based on machining

how laser sintering works

since the early 1990s, laser sintering has become a successful tool for product development. As a technical solution of rapid prototyping design concept, based on 3D CAD data, it can get fully functional prototypes, molds or models in a few days, which helps greatly reduce the time to market. The improvement of this technology and the increase of relevant knowledge have expanded its scope of use in many ways. At present, laser sintering is the key technology of electronic manufacturing. It can produce rapidly, flexibly and cost effectively directly from CAD files

laser sintering is a layered manufacturing technology. The premise of this technology is that the three-dimensional data of the object is available. Then the three-dimensional description is transformed into a set of slices, and each slice describes the cross-section of the part with a certain height. The laser sintering machine accumulates these slices layer by layer to obtain the desired object. In each layer, laser energy is used to melt the powder. With the help of the scanning device, the laser energy is "printed" on the powder layer, thus producing a solidified layer, which then becomes a part of the finished object together with the engineering technology research center of the Chinese Academy of Sciences. The next layer continues to be processed above the first layer until the whole processing process is completed

processing of plastic parts

the hearing aid industry strongly requires that its products can be customized. Because successful hearing aids rely heavily on its adaptation to the anatomical characteristics of the ear canal, the industry cannot provide any large-scale products

the process of using laser sintering to produce hearing aids is as follows:

1 Make a copy of the anatomy of the ear canal with wax casting

2. The wax casting was scanned with a scanner to obtain three-dimensional data

3. An identification code is added to the three-dimensional data, which can be used to help identify the obtained hearing aid shell after the laser sintering process

4. Laser sintered housing

5. Combine the laser sintered shell with the electronic components

in the hearing aid industry, laser sintering has become the choice of manufacturing process

the manufacturing process works with the same efficiency, whether it is the same batch of products or different (write once) products. Hundreds of hearing aid shells can be placed in the shape envelope of the laser sintering system, so that hundreds of products can be produced in one night. Electronic manufacturing fully embodies its potential: in the absence of two identical parts, it is a key function to directly use 3D CAD data for manufacturing process. At the later stage of product production, the data can be reused to manufacture spare parts with the same geometry as the original. Each part has a serial number in the shell as the identification code used by the patient

at the current level of laser sintering technology, each plastic laser sintering machine can produce 100000 hearing aid shells per year

h there was an error in the talent introduction policy of enterprise ammtronic joystick "Hi drive intelligent drive"

fit successfully applied the direct metal laser sintering technology (DMLS). This business unit provides rapid development and economical small batch production of innovative and complex joystick steering systems for a construction vehicle. The joystick assembly line consists of 15 plastic components and other electronic devices, mechanisms and switches. Technical requirements include: high reliability in harsh construction sites, complex geometric devices require high precision of electronic tensile testing machine components, which are widely used in plastics. In addition, due to participation in the exhibition, the required development cycle is very short

fit decided to use DMLS technology to construct 14 tools. More than 70000 injection molded parts were manufactured using laser sintering tools. Another module directly utilizes the laser sintering technology of plastics. The whole operation time is nine weeks, including three weeks of delay due to customer design changes. By choosing the laser sintering technology as the production method, fit can reduce the project cost by 50% compared with the traditional process

the use of laser sintering for electronic manufacturing has become a feasible solution in many different industries. It should be emphasized that this technology is feasible not only in the rapid prototyping environment, but also in a series of production of multiple varieties of complex products. In those areas where products can be produced by laser sintering technology, electronic manufacturing has the greatest impact. By avoiding the consumption of time and cost caused by tool processing, the use of laser sintering target products can improve the competitive advantage of some industries compared with competitive industries

just like the above application examples, laser sintering can promote economic benefits by providing fast and appropriate tools. If the required tool complexity is very high, this technology shows its advantages. From the example of hammtronic joystick, it can be seen that using laser sintering to produce tools can reduce the valuable time in the development process

laser sintering is not only an effective tool for rapid prototyping, but also increasingly becomes the choice of manufacturing process in industries facing a large number of different and complex products

fit decided to use DMLS technology to construct 14 tools. More than 70000 injection molded parts were manufactured using laser sintering tools. Another module directly utilizes the laser sintering technology of plastics. The whole operation time is nine weeks, including three weeks of delay due to customer design changes. By choosing the laser sintering technology as the production method, fit company can reduce the cost of the project and reduce the common fault 3: 50% lower than the traditional process

the use of laser sintering for electronic manufacturing has become a feasible solution in many different industries. It should be emphasized that this technology is feasible not only in the rapid prototyping environment, but also in a series of production of multiple varieties of complex products. In those areas where products can be produced by laser sintering technology, electronic manufacturing has the greatest impact. By avoiding the consumption of time and cost caused by tool processing, the use of laser sintering target products can improve the competitive advantage of some industries compared with competitive industries

just like the above application examples, laser sintering can promote economic benefits by providing fast and appropriate tools. If the required tool complexity is very high, this technology shows its advantages. From the example of hammtronic joystick, it can be seen that using laser sintering to produce tools can reduce the valuable time in the development process

laser sintering is not only an effective tool for rapid prototyping, but also increasingly becomes the choice of manufacturing process in industries facing a large number of different and complex products. (end)

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