The combination of 3D printing technology and traditional casting industry has brought new vitality to the future casting industry. The combination of reverse engineering data detection and rapid investment casting can meet the development needs of enterprises for new products, small batch and complex parts. In this paper, the...
Through zgsccan three-dimensional laser scanner to complete the detection of point cloud data, the obtained point cloud data of complex parts are imported into the software Geomagic control, and then the STL format file of corresponding complex parts is imported for data processing and comparison, and finally the size...
The process of PS rapid investment casting based on selective laser sintering was studied. Starting from the process of rapid investment casting and the route of dimensional error transmission, the optimal parameters of wax impregnation process were obtained through the study of wax impregnation post-treatment process, and the dimensional...
Before the 3D scanning data detection, the laser 3D scanner needs to be calibrated. The calibration plate is scanned and calibrated, and then the part data is scanned and detected. The main steps are as follows: (1) Data location of diffuser impeller The measured parts are placed on the...
Through the actual observation of the casting, it is found that the appearance of the diffuser casting is complete, and the corresponding characteristic parts of the casting are measured. At the same time, the castings without dimensional error compensation and after dimensional error compensation are compared. Considering the actual...
The blade of diffuser impeller is mainly a complex free-form surface. The conventional measurement method can not complete the mapping of the whole impeller, get the required impeller data, and the application of reverse engineering technology can solve this problem. There are two kinds of detection methods of reverse...
From the actual casting results of trial casting, it can be found that the upper part of the diffuser blade has some defects, and the side blade also has different degrees of defects at the bottom. Considering that in the actual casting process, the upper blade is the first...
To detect the 3D data of the part, the specific process is to detect the surface geometry of the part and convert it into spatial coordinates. The final coordinate points obtained in the process of data detection are the data basis of the whole reverse engineering modeling and evaluation....
The diffuser shell adopts high strength ceramic shell process, which is composed of surface layer, transition layer and back layer. The surface layer is coated with silica sol with a mass fraction of more than 30% and zircon powder with an average particle size of 325 mesh, and the...
SLS rapid investment casting generally needs three steps: SLS prototype firing, wax impregnation post-treatment and investment casting. Because there is a certain size error transfer between SLS prototype wax mold casting, in order to ensure that the final casting can meet the corresponding size accuracy requirements, the size error...