Additive manufacturing or digital printing are known to produce porous and lower than bulk density products. How can we produce highly densified zero defect products using these techniques ?
The solution lies on effective application of design for excellence (DfX) methodologies, e.g. Design for additive manufacturing, Design for Zero Defects.
The core manufacturing industries have deployed additive manufacturing and concurrent engineering to produce highly densified zero defect products using DfX methodologies. The focus is on systematic procedures rather than guidelines because the latter have constrained the application of additive manufacturing in the construction industry
The quality of a product is dependent on both facilities/equipment and manufacturing processes. Any error or disorder in facilities and processes can cause a catastrophic failure. To avoid such failures, a zero- defect manufacturing system is necessary in order to increase the reliability and safety of manufacturing systems and reach zero-defect quality of products.
General manufacturing challenges for AM lies in the development of self-contained, robust, user-friendly, safe, integrated system to provide required deposition scan motion, and speed, high feature-volume resolution with concomitant energy for part fabrication and dimensional control.
Other challenges pertaining to AM products are surface finish, part size, variations in product quality from machine to machine and between batches of productions, and a lack of fundamental understanding of the impact of operational variables on part quality.
One of the major challenges for zero defect manufacturing is the analysis of massive raw datasets. This type of analysis needs an automated and self-organized decision making system.