In 2012, engine materials are undergoing changes, lighter, stronger, and higher-strength materials are constantly being introduced. This puts more stringent requirements on cutting tools, how to make high-quality engines, and minimizes cost-effectiveness. At the same time, we provide a complete solution for the complete machining process. Seco is aware of this change and has designed many efficient, economical and stable machining solutions. With the gradual upgrading of the demand in the automotive consumer market, automobile and component manufacturers are facing greater quality and cost pressures, and the competition in the automotive market is becoming increasingly fierce, effectively ensuring the processing quality and precision of automotive parts. Continuously improve processing efficiency and shorten the production cost of single-piece products, which has become the focus of the pursuit and attention of automobile and component manufacturers. Among them, it is the engine manufacturing technology that is known as the “car heart†because it is the most technically advanced and has the greatest impact on the performance of automobiles. As engine materials are undergoing changes this year, lighter, stronger, and stronger materials continue to evolve, which puts more stringent requirements on cutting tools, how to make high-quality engines, and minimizes efficiency. At the same time, we provide a complete machining solution for the entire cutting process. Seco is aware of this change and has designed many efficient, economical and stable machining solutions. The machining accuracy of the engine cylinder bore is high. Generally, the dimensional accuracy is above H7. Some cylinder bore precision requirements are higher. There are strict CPK requirements. In addition, the number of cylinder bores is large, so the machining time is long. It is divided into three steps of “rough-semi-fine-fine-fineâ€. A cast iron cylinder is required to be processed at a customer's location. In order to save processing time, Seco combines semi-fine and fine boring on a single tool (Fig. 1), using two small tool holders to complete semi-finishing, with a fine adjustment function. The fine boring unit is finished with fine, fine and fine boring with PCBN inserts, which can be processed with high cutting speed. In order to achieve a high surface finish, Seiko's patented spiral wiper technology not only improves tool life but also reduces the possibility of vibrating the knife. The tool can process satisfactory holes under the cutting parameters of Vc=800m/min and Fn=0.3mm/rev, and achieve high tool life, which fully meets the requirements of large-scale mass production and strict process requirements. The cylinder head is another important part of the engine, and its accuracy directly affects the performance of the engine. The coaxiality accuracy of the valve seat and the bottom hole of the pipe will affect the uneven distribution of the finishing allowance. The coaxiality error is generally less than 0.05mm before the pressure is applied. Many manufacturers use drill expansion, semi-fine boring and fine boring. The step is completed, the efficiency is extremely low, although some of the composite tools are also complicated to adjust, and the experienced workers need to adjust the inverted cone, and each adjustment takes a long time, which seriously affects the processing efficiency. For this reason, Seco has introduced a complete solution before and after press-fitting. Before press-fitting, the adjustable precision boring tool and the high-precision precifix are cleverly compounded, which can ensure the coaxiality is less than or equal to 0.025mm, and can guarantee the IT6 tolerance. Without separate adjustment, the worker can complete the tool change on the machine tool, greatly improving the production efficiency. The reamer and the boring blade are standard products, which reduces the cost. After press-fitting, due to strict dimensional accuracy, surface roughness and other requirements, in order to improve the processing efficiency and accuracy of this type of hole system, Seco also uses a composite tool to solve the hole system processing with a tool, and the effect is remarkable. The tool is shown in Figure 2. The front end is mounted to the rear end by a hot-up method. The three precision units are combined on one tool. The indexable insert is used, which is convenient and low in cost, high in positioning accuracy, and stable in clamping. The conduit hole is made into a welded PCD cutter, and can also be made into a nanofix reamer. The valve seat hole uses a PCBN insert. The cutter also utilizes a patented high-speed steel knife pad. The tool also has height adjustment and angle adjustment to ensure processing efficiency. And ensure the processing accuracy. Seco's mission is to provide solutions through high-performance products and services, and deep cooperation with customers to enhance customer competitiveness. Therefore, in the provision of processing technology and solutions, Seco maintains timely and in-depth communication with customers, and understands the real needs of customers in detail, in order to achieve the goal of reducing costs and increasing efficiency, and to develop optimal tool solutions for customers. . At the time of Seco, we are fully prepared to respond to customers' pursuit of quality assurance, processing cost and processing efficiency, and provide timely and effective on-site technical support to form a good partnership with automobile manufacturers to achieve a win-win situation. the goal of. Automatic Steel Production Line,Foam Sheet Extruder,Slitting Machine Line Futian Machinery Co., Ltd. , http://www.skywin-extruder.com
Figure 1 Semi-precision and fine composite tool 
Figure 2 valve valve hole and seat hole machining tool