FDM technology uses thermoplastic plastics (mainly polymer materials such as PLA, ABS, TPU, PETG, nylon, etc.) as consumables, heats the filamentary consumables to melt and extrude them, forms the material into a specific shape in a plane by controlling the movement of the nozzle, and then realizes additive manufacturing by stacking the planes layer by layer. PLA (polylactic acid), the king of FDM printing consumables, is an environmentally friendly material with good biodegradability, capable of being produced from renewable biological resources (such as corn, cassava and other plants) and being completely degraded by natural microorganisms under certain conditions, eventually producing carbon dioxide and water. Characteristics: PLA has a density of 1.25-1.28g/cm3 and a melting point of 155-185°C. The printhead temperature is usually set at 180-220°C during printing. Because of the low shrinkage of PLA, the possibility of warping is low, so it is possible to either not open the hot bed and play cold, or use a lower hot bed temperature; PLA consumables are easy to absorb moisture, so attention should be

The automotive industry is constantly evolving and needs to incorporate new technologies, and the vehicle production process involves highly complex production processes that face the dual challenges of both traditional and new technologies competitively, while having relatively high access standards. According to the Wohlers 2020 report, the automotive industry has become the largest market for 3D printing technology applications, surpassing aerospace and medical fields. Tesla, BMW, Mercedes-Benz, Volkswagen and other automakers have introduced additive manufacturing technology. 2020 April, foreign engineer Sandy Munro disassembled the Tesla Model Y, in which 3D printed parts were used in the car's HVAC system. This also means that 3D printing technology does not stay in the "process verification", but has been directly used in automotive manufacturing. 3D printed parts on the Tesla Model Y, manufactured using the FDM process

What is carbon fiber Carbon fiber itself is extremely tensile, thin and brittle, so it is not suitable for practical use alone, but when the fibers are bonded together in groups with a binder, carbon fiber forms a composite material with good performance and light weight, and the more common applications of carbon fiber materials are in the aerospace and automotive industries. This high strength, high stiffness and light weight make it a great alternative to heavier metal parts. Carbon fiber material is also divided into short-cut carbon fiber and filament carbon fiber, for example, 3d printing well-known brand stratasys company in the Fortus 380mc carbon fiber 3d printer, it is used Stratasys FDM nylon 12 carbon fiber, nylon 12 carbon fiber (12CF) is a PA12 (polyamide 12) thermoplastic filament, reinforced with carbon fiber shreds, 35% of the weight, belongs to the short-cut carbon fiber, because in all FDM thermoplastics, bending strength is the largest, and therefore has the highest stiffness to weight ratio. Carbon fiber 3d printer

Introduction: 3D printing has special advantages in making product prototypes and product development, by simplifying production in order to achieve new manufacturing efficiencies. △KADEN is a 70-year old model car manufacturer For example, the toy industry, lucrative, is a never-failing industry, but want to continue to develop in the market is indeed increasingly difficult to analyze the reasons, in addition to production costs and market demand, another reason is that new products in the development stage lack of creativity and efficiency. For the traditional process, whether from concept to design, and then to mass production and sales, it may take several months or even longer cycle. In contrast, with 3D printing technology, this process can potentially be reduced to weeks, or even days. On June 6, 2022, it was announced that KADEN, a 70-year-old automotive model manufacturer, incorporated Nexa3D's NXE 400 3D printer into its production line. Gaining nirvana through 3D printing technology, it can substantially improve production efficiency while achieving more refined car models.

Introduction: All manufacturing processes have certain limitations, as even machines cannot produce particularly smooth shapes. 3D printing, due to its own manufacturing principles, does not produce a very smooth part just after printing due to the presence of layer thickness, so some post-processing is always required. Sanding is the most common post-processing technique in 3D printing and is also the most labor-intensive aspect. So how do you sand a printed part? Sanding parts is always time-consuming and labor-intensive, and it is the most discouraging step. However, there are techniques that can help people sand faster and more professionally. Today, we will focus on sanding PLA as an example of what to do when sanding parts and how to do it to get a smooth part surface. △Print smooth parts to save grinding time To avoid a lot of subs

Titanium alloys are widely used in the aerospace field due to their high strength and good corrosion resistance. This paper introduces the microstructure and mechanical properties characteristics of major titanium alloys in recent years, including high-strength and high-toughness titanium alloys (β-type or sub-stable β-type, Ti-1023, Ti-15-3, β21S and BT-22), high-temperature titanium alloys (above 500°C, near-α-type, IMI834, Ti-1100, BT36 and Ti-60), damage-tolerant titanium alloys (α+β-type TC21 and TC4-DT) and flame retardant titanium alloys (Alloy C, BTT-l and BTT-3) in four areas. According to the effect on β-transformation temperature, the alloying elements of titanium can be divided into neutral elements, α-phase stable elements and β-phase stable elements. α-phase stable elements extend the α-phase region to a higher temperature range, while β-phase stable elements move the β-phase region to a lower temperature, and neutral elements have little effect on β-transformation temperature.

Currently, metal 3D printing, polymer 3D printing, ceramic 3D printing, and biological 3D printing technologies have been developed worldwide. According to the difficulty and depth, the use of 3D printing technology in medical treatment can be divided into four levels: preoperative planning and advance rehearsal, surgical guide and rehabilitation scaffold, orthopedic matching and human implantation, and living organ printing. At present, living organ printing is in preliminary exploration worldwide, and the first three have been applied in China to varying degrees. It is reported that several hospitals in the country have cases of 3D printing technology application. Such as the Third Hospital of Peking University, Beijing Jishuitan Hospital, the Ninth People's Hospital of Shanghai Jiaotong University School of Medicine, the First Hospital of Zhejiang University, the First People's Hospital of Jining City, Shandong Province, Guangdong Provincial People's Hospital, the Third Affiliated Hospital of Southern Medical University, etc. At the same time, 3D printing can not only "tailor-made" to provide all kinds of bones, organs and tissues, but also to achieve precise and personalized drug screening. Currently, domestic research teams have already combined adipose stem cells, endothelial and pancreatic islet cells in 3D space to form a model that simulates the metabolic regulatory structure in vivo, whether it is insulin secretion, glucose metabolism, fat metabolism, or the secretion of blocking factors, the relevant results are closer to the human body, and the sensitivity and toxicity of the drug response is more accura

3D printing technology has been used in the production of civil aircraft spare parts for many years, but the vast majority of them are made of plastic, metal parts and even load-bearing parts are strictly regulated. Recently, 3D Printing Technology Reference learned that the European Aviation Safety Agency approved the first 3D printed load-bearing metal part for use on an aircraft - "A-Link" for the anti-icing system of the IAE-V2500 engine, which powers the Airbus A320. Developed by 3D printing service provider Lufthansa Technik and Airbus subsidiary Premium AEROTEC, the A-Link (A-shaped connecting rod) serves to secure a ring-shaped hot air duct to the engine intake cowl, which prevents icing during flight operations, for a total of nine A-Link parts on a single engine. However, the vibrations that occur during engine operation cause the A-Link to wear at its mounting holes, so spare parts need to be replaced every few years. Because the A-Link needs to be exposed to tempe

Customized CNC machined lighter