Laser source as a forming tool, without any form of external force, because it is a heat stress alone and not die so that the plastic deformation of sheet metal processing methods, so no external force is forming. No mold forming part of the production cycle is short, flexible large, resulting from the processing of environmental constraints, by optimizing the laser processing parameters, precise control of heat effect zone and thermal stress distribution, the non-die sheet metal forming. Restrictions are not subject to mold, shape and can easily produce all kinds of complex shaped parts, to overcome the traditional mold bending caused by the high cost and long production cycle of disadvantage. The minute of quality meeting of green laser pointer has the latest version.
Are hot forming, can be formed at room temperature, forming the hard brittle materials and high-hard material. Forming a non-contact, so there is no molding, wear and lubrication issues, there was no punch, phenomenon, forming high precision. The laser beam mode no special requirements, easy to implement shaping, cutting, welding and other laser processing technology is particularly suitable for large composite parts, small batch or single product prototypes. Forming composite sheet can be shaped by complex shaped parts (such as spherical parts; parabolic cone pieces and parts, etc.). Forming process is no noise, no pollution, are clean, green manufacturing areas, processing materials consumption, parameters such as precision control and a high degree of automation features. This enables the laser forming process for the thermal stress materials processing engineering disciplines to provide an unprecedented new growth, a powerful new research tools and techniques of deep breakthrough, but also conforms to agile manufacturing, flexible manufacturing and green manufacturing trends. Laser thermal stress of the material forming this new process has broad application prospects, but it is a relatively new technology, laser forming of the law under study. And compared to other laser processing technology, sheet metal forming of laser thermal stress is still in its infancy, coupled with the high cost of laser processing, there is no extensive use of the technology reports. However, thermal laser sheet bending stress is accumulated under the hot forming, so the room temperature deformation of hard materials (such as ferro-alloys, ceramics, cast iron, etc. b) has a unique advantage. Ferroalloy poor ductility at room temperature, cold forming difficult, although forming technology can be heated, but the processing cycle time, high costs. The minute of quality meeting of laser pointer pen has been revised for several times.
At present, China mainly used titanium alloy forming aircraft, satellite and rocket parts, one forming a simple linear curve bending flat pieces and a larger proportion of curved side pieces. As the volume is small, with the original auxiliary heating forming technology need to make a lot of mold temperature, and forming part of the furnace by size restrictions. To reduce costs, simplify the process conditions, shorten production cycle parts, to speed up the development of new models, the laser forming of sheet metal forming technology for titanium, can give full play to the unique advantages of the technology. In aerospace research and development of new products play an important role. In addition, because the laser forming process of the laser beam mode no special requirements, easy to implement shaping, cutting, welding and other processes of the composite laser processing can also be laser forming and mold forming composite to achieve the purpose of simplifying the mold. And other processes of laser forming composite is an important development. Laser thermal bending stress basic research during the past lo years has accumulated a lot, but there are still many problems to be solved. The meeting minute of green laser pointer should be revised more.
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