Understanding and controlling the behavior of the molten pool in the metal 3D printing process has always been a problem. Can you, like 2D printing, have a “print preview†before printing to avoid possible errors? 3DSIM, a specialist in additive manufacturing simulation, has developed a joint name FLEX with Sigma Labs. Software, which simulates the response of thermal sensors to metal additive manufacturing processes to avoid possible errors in advance, FLEX? All commercial versions are scheduled to be released in early 2018. FLEX? Is a key part of the additive manufacturing digital thread, FLEX? Users can run a simulation software to predict what their high-speed, non-contact pyrometer in a 3D printing device will “seeâ€, just like the “print preview†feature of 2D printing word processing software. Xiao Bian thinks that the software design basis of the simulation software 3DSIM is to understand the performance characteristics of more than 1,000 different material combinations and to understand which combinations of materials have a greater impact on the parts and to obtain some interesting results to help determine the materials. The relationship between characteristics and the width and depth of the bath, by accurately simulating the width and depth of the bath, can directly predict the surface roughness, accuracy, and porosity of the part. Once the part's geometry is modeled, simulation software can be used to predict a representative laser scan path. Simulate the laser and its interaction model with the material. The model provides a scientific depiction of the material's transformation from powder to liquid and solidification under the action of a laser. The model simulates the heating of the powder on the powder bed, the blasting, melting and rapid cooling of the solidification process, and the construction of each layer is pushed by . Once a layer's scanning strategy is established, simulations can provide accurate temperature histories of the layer. This history can be used to predict the crystal structure, porosity, deformation, and residual stress of the material. The simulation data is based on the physical factors of the equipment and materials, including the bulk density of the powder material, the laser energy absorption characteristics, and the thermal conductivity. Through simulations, process parameters can be adjusted, new powders can be replaced, software can be used to determine scanning strategies, and powder selection. Simulation software will predict the impact of these changes on part performance. The core strength of Sigma Labs is the integration of sensor hardware with data and software. On the hardware side, Sigma Labs sensor technology - Sensorpak, is a complete system of acoustic, optical, and thermal sensors, collecting process data. The data recorded by the sensors will establish the process documentation, and Sigma lab engineers can extract key quality records from big data through years of research experience in metallurgy and welding at Los Alamos National Laboratory, and restore the key through the resulting characteristics. The physical characteristics of the process. Because the hardware records and accumulates a large amount of data, Sigma Labs evolves from process measurement to process control, and process parameter storage matches micro-level settings and results. Creates a correlation with quality from process parameters. If none of the predetermined rules are met, the parameters are detected during the print process interruption and signal activation, and the execution deviation is corrected. In this way, it is necessary to prevent the occurrence of defective molten pools. This process control is called Process Quality Assurance and is Sigma's unique (iPQA?) technology. In addition, process quality metrics (iPQM?) include quality assurance, which can increase production efficiency and enable lean strategies in manufacturing operations. Massage Gun,Deep Massage Gun,Muscle Fascial Massage Gun,Percussion Massage Gun Zhejiang Xinzheng Industry and Trade Co.,Ltd , https://www.xinzhengsports.com
How to control the quality of metal 3D printing, to a "print preview" how?