What is additive manufacturing? It is generally known that additive manufacturing is 3D printing , and in fact 3D printing is only one type of additive manufacturing process, it is not an accurate technical name. Additive manufacturing refers to the technique of forming a three-dimensional entity by layer-by-layer accumulation of materials by discrete-stacking. According to its characteristics, it is also called additive manufacturing, rapid forming, arbitrary molding and so on. Advantages of additive manufacturing Additive manufacturing reduces manufacturing costs and increases production efficiency by reducing mold costs, reducing materials, reducing assembly, and reducing development cycles. The specific advantages are as follows: Small-volume customized products are economically attractive compared to traditional mass production methods; Producing directly from a 3D CAD model means no tools and molds are required, no conversion costs; Designed in the form of digital files for easy sharing, facilitating modification and customization of components and products; The additivity of the process allows for material savings while reusing waste materials (such as powders, resins) that are not used in the manufacturing process (recyclability of metal powder is estimated to be between 95-98%); Novel, complex structures, such as free-form closed structures and channels, are achievable such that the porosity of the final part is very low; Ordering reduces inventory risk, there are no unsold finished products, and the revenue stream is also improved because the goods are paid before production; Distribution allows direct interaction between local consumers/customers and producers. Additive manufacturing technology inventory 1. Photopolymerization technology SLA: Stereolithography is the first practical rapid prototyping technology. The specific principle is to selectively focus on the surface of a photocurable material (such as liquid photosensitive resin) with a laser of a specific wavelength and intensity to cause polymerization, and then from point to line, from line to surface, to form a layer of drawing. Work, then the lifting platform moves the height of one ply in the vertical direction and then solidifies the other. Such layer stacking constitutes a three-dimensional entity. 2. Based on sintering and melting SLS: Selective Laser Sintering, (selective laser sintering) process is formed using a powdered material. Spread the material powder on the upper surface of the formed part and flatten it; use a high-strength CO2 laser to scan the cross section of the part on the freshly laid layer; the material powder is sintered together under high-intensity laser irradiation to obtain The section of the part is bonded to the formed part below; when the section is sintered, a new layer of material powder is applied and the lower section is selectively sintered. The biggest advantage of the SLS process is the wide selection of materials. 3. Based on powder-adhesive principle 3DP: Three Dimensional Printing is very similar to flat printing, even with a flat-panel printer. Similar to SLS, the material of this technology is also powdery. Unlike SLS, the material powder is not joined by sintering, but the cross section of the part is "printed" on the material powder by means of an adhesive with a nozzle.
Types of Outdoor Sports Backpacks,Mainly include mountaineering bags, travel bags, bicycle special bags, backpack bags, etc.
mountaineering backpack has two categories: one is a large backpack with a volume between 50-80 liters; the other is a small backpack with a volume between 20-35 liters.Large mountaineering bags are mainly used to transport mountaineering materials in mountaineering, while small mountaineering bags are generally used for high-altitude climbing or assault peaks.The backpack for mountaineering is designed to cope with extreme environments. It is exquisite and unique. Generally, the body is slender and long. The back of the bag is designed according to the natural curve of the human body, so that the body of the bag is close to the back of the person, so as to reduce the pressure on the shoulders by the straps.
Sports Duffel Bags,Mountaineering Bag,Mountaineering Rucksack,Mountain Hiking Backpack Longzhao Technology (Guangdong) Company Limited , https://www.gdprincebag.com
Additive manufacturing 6 major technical inventory