3D printing by a potential material manufacturing is to reshape the product design, we make a lot of original products become familiar with the original "long" was almost completely different. Less material, the mechanical properties of the same or even better, increasing material manufacturing for the designers to open a new field.
In the process of increasing material manufacturing, designers do not need to worry too much restrictions on processing, they can pay more attention to what is the performance of this product to achieve the goal? Can design a has the same functional properties of products and using less material? How to get the cost savings is a material manufactured by? The flexibility of parts is becoming more and more complex, organic and lighter, and to meet performance requirements. In this period, further understanding through the analysis of simulation expert Subham Sett Dassault simulation to hand in hand and increasing material manufacturing.
The general goal of Figure 1 topology optimization is in a given design space optimal material distribution. For the optimization of the basic tasks, the volume of material constraints. For a given volume of material (the target volume or target weight), maximum rigidity must be achieved.
Topology optimization is an important means of reducing additive manufacturing in the design process, through the topology optimization to identify and remove those parts does not affect the rigid parts of the material. A topological method for determining the optimal material distribution in a given design domain including boundary conditions, pre tension, and load etc.. In Figure 1 can be used to create organic design to use less material by Tosca software, and all meet the functional requirements and constraints. In a larger design space (gray), Abaqus iteration based on the finite element analysis, will meet the performance requirements of presentation materials needed. In addition, the Tosca software can also be combined with simulation and finite element solver of the other third parties to parameter optimization of complex components in based on nonlinear analysis.
The design of Tosca software in the traditional manufacturing mode of casting and mold will fully take into account what are the limitations of traditional manufacturing. The increase in material manufacturing mode, also need to have some special considerations? Take the NASA aircraft and satellites on a circuit board for housing. Considering the launch of average cost, 1 pounds of material launched into space costs nearly $10000. Topology optimization design model by FDM fused deposition 3D printing technology made after weight reduction of nearly 1/3.
The factors to be considered include not only increasing material manufacturing process itself, usually 3D printed products and traditional crafts manufactured parts still need to be assembled together. Tosca simulation software will need to consider two kinds of parts with parts of the design process. Due to the increase in material manufacturing process also need to consider the print resolution of the problem, you need to select a conservative limit, in order to avoid defects like voids or cracks in the printing process. In addition, increasing material manufacturing process need most of the support structure, whether it is merely play a supporting role is to provide a heat conduction path, support structure increases the overhead cost of materials and printing. Try to reduce the overhang to avoid supporting structure, and optimizing the construction direction to reduce the need to support, improve cost effectiveness.