Authors:
Kiranmayi Abburi Venkata (1), Siwen Gao (1)
1- Hexagon/Simufact, Manufacturing Intelligence Division, Tempowerkring 19, 21079, Hamburg, Germany
Abstract:
Sinter-based additive manufacturing (AM), especially Metal Binder Jetting (MBJ) is emerging as an economical AM technology for cheaper metal parts production. Although sinter-based manufacturing has been around for over half a century, the design freedom and specific process characteristics of MBJ necessitate reliable sintering simulation. A validated simulation tool provides greater understanding of the underlying material behaviour necessary for design optimisation, process control and standardisation. Using Simufact Additive MBJ module, the macroscopic shrinkage and deformation behaviour of the material during MBJ sintering are predicted accurately. The simulation predictions are used to automatically generate pre-compensated part geometry such that the part tolerances are within quality specification after sintering. Other quality control strategies such as live setters/supports can also be assessed to identify the best strategy for a given geometry, material and process parameter combination. The simulation framework as a virtual design tool is validated on industry relevant geometries with experimental investigation.
DOI:
https://doi.org/10.59499/EP235754938