In order to meet user requirements for production efficiency and machining accuracy, researchers and equipment manufacturers are striving to break through the limitations of traditional milling, drilling, turning, grinding and other processing methods. Along with the continuous improvement and improvement of traditional processing technology, various novel cutting techniques and processing methods are also emerging. Here are some of the modern processing techniques that have been successfully applied, and many new processing methods are under development.
Laser cutting
Since the laser was first introduced in the 1960s, its variety, size, and range of applications have continued to expand. At present, the research and development of laser technology and equipment mainly include: 1 improving user friendliness and ease of operation; 2 easy maintenance; 3 improving the "plug and play" ability; 4 reducing the size of the device for the medical and electronic industries; Accuracy; 6 adapt to the flexibility of niche production and mass production.
For nearly two decades, laser processing technology has become an important part of sheet metal processing, and the ever-increasing laser power has greatly increased productivity. In addition, laser processing equipment has many different design features.
The world-renowned laser processing equipment manufacturer Trumpf attaches great importance to the versatility of laser processing equipment and has been providing users with 2D and 3D laser cutting systems. Because laser processing is extremely flexible, it can solve the dilemma faced by many enterprise managers. Is it a "niche market" for single-piece small batch processing or a mass production? Trumpf's 3D laser processing system can be easily customized to any of the above two types of processing. In the mass-processed automotive industry, the system is used for precise cutting of the car body, the cuts are clear and clean, and there is no problem with the heat affected zone (HAZ). The laser cutting capability simplifies the manufacturing process of the same type of car body. For example, the laser processing system can cut the position of the steering wheel of the car in the final production process, whether it is on the left or right side of the body. By cutting the roof with a laser, you can turn a car into a convertible. By adding a few weldments, the car can be turned into a pickup. This can reduce the number of body stamping dies and operators, greatly increasing productivity, that is, laser processing systems can achieve flexible manufacturing without tools.
Trumpf also offers laser cutting machines and laser bending machines for the shop floor, making the manufacture of box-like components easier. First, the metal sheet is cut by a laser cutter, and then the workpiece is molded by a laser bending machine. The latest technological advancement is the addition of a laser welding station to the sheet metal processing plant.
Another application of 3D laser cutting systems in the automotive industry is cutting high strength steel. In order to increase the strength and weight of automotive parts, car manufacturers are increasingly using more tough metal materials. However, the problem that comes with it is that these materials are very difficult to cut, resulting in a sharp increase in the tool wear rate, so that economical processing cannot be achieved by conventional cutting processes.
Trumpf lasers enable complex cutting quickly and easily without the need for subsequent secondary processing. A big problem that needs to be solved in developing such a laser processing system is the accumulation of errors, including the error of the workpiece, the error of the laser system, and the error of the workpiece clamping system. The problem of workpiece clamping further complicates the situation. Since there are no holes on the workpiece that can be used for safe and reliable clamping, special fixtures need to be designed to ensure that the workpiece does not undergo any deformation during processing.
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