With the development of the manufacturing industry, mold production has gradually transformed into smart manufacturing. This article describes the relationship between 3D printing and mold manufacturing. There are molds in industries. Whether it is personalized and customized gold and silver jewelry, or mass production of daily necessities, are inseparable from the mold, so the mold is known as the "mother of industry," it is well deserved. From the ancient bronze tripod casting to the modern automobile production, the mold covers a large number of production processes in various industries and is an industry that is both old and constantly advancing with the times. Throughout the development of the mold industry, from the initial pure hand-made molds to the mechanical processing of the molds, and now to the introduction of digital design and automatic control of the mold CNC machining, molds in the accuracy, difficulty and continuous shorten the production cycle At the same time, the number of purely hand-made processes continues to decrease. With the maturing of technologies such as 3D printing, intelligent machine tools, high-precision three-dimensional measuring equipment, augmented reality (AR), and robotics, mold production is moving in the direction of smart manufacturing. Among the many new technologies, 3D printing was first applied to the mold industry. In the three major aspects of the design, production and maintenance of molds, 3D printing applications can be found. Before the development of mold design, there will be a complete product design development process. The introduction of the design and development of 3D printing auxiliary products can not only reduce the development costs of the actual samples, but also significantly shorten the development cycle. The advantage of the mold lies in the production of large quantities of products, but due to the constraints of the traditional production process, the new product must usually be opened before the market is launched. If the market responds well, molds can be put into mass production. Naturally, they are happy. If the market response is flat and there is no mass production of new products, the molds developed in the early stages will be wasted. If you use the 3D printer to produce small quantities of new products to explore the market, you can save the development cycle and the cost of the previous mold. Even if you use 3D printing to replace some of the accessories, you can also save a mold development costs. Then, based on the information feedback from the market, after improving the products with good response and then open the mold production, the targeted effect is not what the fish can use to spread the net. The rationality of mold design directly affects the precision, process and service life of mold making. For the mold with complex structure, the mold components designed by CAD software are printed out with a 3D printer, and the rationality of the structure is further verified through actual assembly. Into the mold making part, 3D printing applications are even wider. For plastic molds with high dimensional accuracy and complex structure, a set of test molds is usually done before the mold is officially opened. Compared with the formal die, the test die is low in material strength and simple in structure. It only needs to provide actual production data for the formal die for verification. Despite this, the cost of test molds and the production cycle are still considerable. With the help of 3D printing technology, direct printing of mold cavities and core-pulling components, combined with traditional mold assembly methods, can significantly reduce the production cycle and production costs of molds. 3D printing replaces various machining processes such as CNC machining and EDM, making the machining and commissioning of molds and the adjustment of fittings sizes very convenient. Currently used in industrial-grade low-volume product printing and 3D printing test plastic molds, Stratasys's Objet500 Connex3 printer with Digital ABS material is a good solution. The previously mentioned are plastic 3D printing applications. In the production of formal molds, metal 3D printing processes are also used. In plastic molds, cooling is one of the most important process steps. A reasonable cooling system can minimize the injection time of the product to ensure high dimensional accuracy of the plastic parts and small deformation of the product to increase production efficiency. The traditional process is to process a linear box-type water transport system by drilling, plugging holes, etc. on the mold cavity plate and line position (pulling slider). Although this method can be machined with the help of milling machines, radial drilling machines, etc., the water transport system is often far away from the shape of the product, resulting in uneven cooling, leading to the inefficiency of production. For example, if the water delivery system is designed according to the shape of the product, the cooling of the mold can be more uniform, the cooling time of the product can be shortened, and the quality and production efficiency can be improved. This kind of cooling structure is called the conformal cooling system. Since the internal water conveying pipe is bent and unconventional methods can process it, this type of cavity plate and line position need to be directly printed out with a metal 3D printer. From the 2016 Guangzhou International Mould Exhibition, we learned that a domestic metal 3D printing company quoted at 6 000 yuan/kg. Therefore, current metal 3D printing is mainly applied to the processing of special parts for precision molds. The completion of the mould and its production means that it enters the maintenance phase. At this stage, it is usually encountered that the product details need to be adjusted locally as well as the repair of the mould damage. 3D printing auxiliary laser welding As shown in the attached picture, it is a case of a plastic mold modification of a remote controller, and a gap is required in the battery compartment according to customer requirements. Since the modified part is on the curved surface of the mold cavity and is relatively fine, it is decided to adopt a laser welding and electric spark machining program. The reason why it does not use lower-cost argon-arc welding is because the excessive welding power will increase the cost of EDM. Second, it will cause the corners of the cavity to melt and collapse. The third reason is that the heat is so large that it is easy. Causes the mold to deform. Repairing some defects on the metal surface with laser repair welding is intuitive and easy to operate, but it is not easy to add a matching part with dimensional requirements on the surface of the cavity. In particular, ordinary welding workshops usually do not have 2D or 3D view software, and the ability of welding masters to view images is limited. Orally speaking or simple textual explanations can hardly achieve a relatively accurate welding effect. Therefore, we use a desktop-class FDM printer to print out the final shape of the part of the mold. Workers can visually perform repair welding and precisely control the machining allowance of the spark by measuring the caliper. In addition to 3D printing, the application of various other black technologies such as AR and robots will also profoundly change the production process of traditional mold factories. Most of the mold factories now use CAD/CAM/CAE software to design and produce molds. Compared with the original manual drawing and manual molding, both the accuracy and the production cycle are a qualitative leap. In spite of this, in the design, production, and maintenance of molds, all data are mainly transmitted by graphics. Even paperless office, most of them use digital terminals as transmission carriers, and feedback and interaction of human nature remain on the basis. Level. If we introduce the intelligent mold management system and AR technology on the existing basis, the interaction between people, people and equipment will be more convenient and convenient in all aspects of the mold factory. With AR-assisted design, the 3D model can be jumped out of the display. The designer can manually disassemble the mold from any angle view and make the feasibility of the structure more intuitively verified. When the operator wears the protective glasses with AR function into the CNC shop, the current machining tasks and the necessary tools are automatically displayed on the lenses, and the operator is guided to prepare the tools according to the processing flow. During the processing, the system will give warm security tips. If a violation is detected, a safety warning will be given immediately to ensure the safety of the operator. After the processing task is completed, the intelligent management system will also guide the operators to carry out tool maintenance and site environment clean-up. Entering the mold assembly stage, the role of AR protective glasses is even greater. A 3D virtual assembly model of the mold will emerge on the workbench. The model master can simply touch the relevant accessories to obtain the design data and the actual workpiece data. The relevant experience assembly methods and the required tools will also be presented. If a new process is used in the mold configuration, the learning function of the intelligent system will automatically enter it into a new process plan. In the polishing process of the mold, the AR protective lens even plays the role of lighting and shooting amplification. In combination with the mold assembly robot, the mold designer's hands can have more freedom. Industry will not die, die will live forever, and the development of science and technology will continue to promote the industrial revolution, and the mold industry will also move toward higher levels of intelligent development in the process of change. Cosmetic Aluminum Bottle,Lotion Pump Aluminum Bottle,Make Up Spray,Set Up Spray Jiangsu Hanmo Tecchnology Ltd,.Co , https://www.hanmotecho.com
