Application of Process Combination of Laser Rapid Forming and Precision Casting Technology(I)
In recent years, laser rapid forming has become an indispensable part of the precision casting industry, and the combination of laser rapid forming and precision casting technology has become a hot spot in the field of precision casting. In this paper, the combination of laser rapid forming and precision casting technology and its application in precision casting industry are discussed.
Laser rapid forming as one of the most advanced forming technology, can form the workpiece with three-dimensional accurate curvature and microstructure in a short time. It is composed of three main parts of laser generator, resonator and tooling accessories. In the industry of precision casting, laser rapid forming technology can meet the needs of producing precision parts in large batches, which reflects short delivery cycle, good material control performance and excellent surface quality. The combination of laser rapid forming technology and traditional precision casting technology can meet the product requirements of diverse structure, complex shape, and high precision.
Laser rapid forming technology can be used together with traditional precision casting technology. The methods of combination and application are shown in Figure 1. Namely, the three-dimensional computer aided design (CAD) technology is used to design the part, and the casting mold is directly adjusted and adjusted, so that the casting mold can be dimensionally controlled and accurately controlled, and the internal and external structure of the casting parts can be shortened by the use of laser rapid forming. Of cycle by controlling the process parameters of the springback, forming and trimming accuracy of the casting parts.
Figure1.
The laser rapid forming technology and the traditional precision casting technology are combined and applied.
The combination of laser rapid forming and precision casting technology not only improves the accuracy and flatness of the parts, but also greatly reduces the production cost compared with traditional process technologies such as forging, heat treatment and mechanical processing. At the same time, the combination of the two technologies also speeds up production and increases production. According to statistics, it generally takes 10 days to process, polish and assemble an aviation aircraft engine castings using traditional technology, while it only takes 1 day or even shorter to complete the same processing with the combination of precision casting and laser rapid forming.
Moreover, the application of laser rapid forming technology in the field of precision casting has also improved the reliability of the equipment and the life of the parts. Through the combination of laser rapid forming technology and precision casting technology, the roughness of the surface of the workpiece is decreased, and the life of the workpiece can be restored. In addition, the use of laser rapid forming technology can also improve the machining accuracy of the workpieces, which can save the processing time and reduce the labor cost.
In conclusion, the combination of laser rapid forming and precision casting technology is of great significance to improve the processing quality and reduce the production cost of precision casting parts. It can meet the requirement of low cost and customized production in mass production.
