How Much do you know the history of CNC machining and modern CNC machining services? Here, you may get the best answers.
Computerized Numerical Control(CNC) machining, it is a mechanical process that adopts the numerical control technology; that is to say, the various actions of the machine tool, the shape, size of the workpiece and other functions of the machine tool are expressed by some digital codes to communicate these digital codes. Through the information carrier input to the CNC system, the CNC system after decoding, operation and processing, issued corresponding action instructions, automatically control the relative movement of props and workpieces of machine tools, thus processing the required workpieces. To put it simply, numerical control machining is the crystallization of modern processing technology; it mainly applies to process the parts that in trial production of multi-variety, small-batch production or new products, and require the shortest production cycle.
1. The Position of Numerical Control Machining
In modern product design, single and small-batch products account for 70%-80%. But of the small production batch and many varieties of this kind of products, they are generally processed by general machine tools. It is difficult to improve production efficiency and ensure product quality. To realize the automation of production of this kind of products has become a long-term unsolved problem in the mechanical manufacturing industry. Some key parts of modern product prototype are often precise and complex, with small batches and frequent modifications. Obviously, they can’t be processed on special or modular machine tools. Especially for complex curves and surfaces in space, it is impossible to realize them on ordinary machine tools.
Figure 1: CNC machining
In order to solve the problem of single-piece and small-batch production, especially the automatic processing of complex surface parts, NC processing emerged as the times require. Since the first three-axis vertical NC milling machine was developed by PARSONS and MIT in 1952, a technological revolution has taken place in the machinery manufacturing industry, which has brought the development of the machinery manufacturing industry into a new stage. Later, CNC turret punch, CNC turret drill, and MC machining center were successfully developed. With the development of CNC technology, information technology, network technology, and system engineering, direct digital control system (DNC), flexible manufacturing system (FMS), flexible manufacturing cell (FMC) and computer integrated manufacturing system (CIMS) appeared successively after the 1960s.
2. The features of Numerical Control Machining
2.1 Stable machining quality and high precise
Before the emergence of CNC machine tools and CNC technology, the same set of drawings, in different processing workshops, product surface quality varies greatly, even if the same worker, processing the same parts, the quality is not the same. When machining curves, surfaces, and precise holes, the requirement of machining accuracy becomes more urgent. With CNC machine tools, the same parts are processed, and the same CNC code is used, so the quality of processing is stable. Later, surface modeling technology was developed. People design products, not only to meet the functional requirements of products but also to pursue the appearance and better performance of products, using a large number of complex surfaces for product design. Therefore, the excellent machining ability of CNC machine tools has received great attention.
- High efficiency and short machining cycle
The trend of product production is multi-varieties and small batches. The goal of the manufacturing industry is to reduce costs, improve quality, and shorten the manufacturing cycle. For the manufacturing industry, especially for the die processing industry, it is necessary to make full use of the performance of CNC machine tools, improve the processing efficiency, shorten the processing time and ensure the timely listing of products on the premise of ensuring the accuracy of die processing. In order to meet the need for high efficiency, there are three-axis, four-axis, five-axis, and even more linkage axle machines.
Figure 2: The effect of CNC machining
3. CNC machining service with product design
3.1 CNC machining & Product design
High efficiency and high precision machining are one of the most important features of CNC machining. The use of CNC machine tool processing, its product processing quality consistency, processing accuracy, and efficiency are much higher than ordinary machine tools, especially in irregular contour, complex curve or surface, multi-process complex processing, and high-precision products processing requirements, its advantages are incomparable by traditional machine tools.
Product design is a process of transforming a certain purpose or needs into a specific physical form or tool, as well as a creative activity process of expressing a plan, planning assumption and problem-solving method through a specific carrier. In this process, through the combination of various elements such as lines, symbols, numbers, and colors, the shape of the product is presented in the form of plane or three-dimensional. So it is a great innovation when product combines with CNC machine.
Figure3: Product design
3.2. Custom CNC machining service
In today’s world, due to the rapid change of customer demand and the increasing complexity of product design, the conventional has gradually lost its competitiveness. “mass production paradigm” refers to the individual large-scale production of customized products and services, aiming at achieving “low cost” and “high speed” by “large-scale” and meeting specific customer needs by “customization”. In that case, a customized prototype manufacturing service is one to watch.
Customized prototype CNC service refers to a special service delivery model that meets the personalized needs of customers in the context of customer participation or interaction. One of the important characteristics of service manufacturing is to bring customer personal feelings, without demand complaints and overproduction. Customized prototype service can realize the joint creation of design concept and product value, and is service-oriented manufacturing innovation of product manufacturing.
3.3. The rising place of CNC service
Recent years, due to the weak of the global economy and the rapid development of a developing country. A large of prototyping order are flooding into a developing country. It has provided a lot of opportunities to local prototype manufacturing enterprises, especially to China. For example, Wayken is a Chinese CNC machine shop; it through provides custom prototype manufacturing service for client earn a living at CNC machining China. With the development of 20+ years, it has developed into quite a strong manufacturing and processing companies in China.
In China, you can find a CNC machine shop easily, and these CNC machine shops specialize in providing prototype manufacturing services, with good quality and 30% less cost than the US/European prices. It can be said with confidence if you need CNC service, CNC machining China is a good choice.
Figure 4: CNC machining in China
In conclusion, CNC prototype manufacturing service is an advanced processing service in product manufacturing. Its widespread use has brought profound changes to the mode of production, product structure, and industrial structure of the machinery manufacturing industry. It is the link for the realization of automation, flexibility, and integration of the manufacturing industry, and has produced tremendous benefits for the machinery manufacturing industry and the world economy.