Abstract
Advances in Additive Manufacturing using Shape Memory materials have found widespread use in medical, aerospace and automotive sectors. 4D Printed parts with shape memory and stimuli responsive materials can be programmed for transformation, actuation and self-assembly. This offers the potential to foster the development of specialized high- value products that can operate passively without an external power source and with fewer electromechanical components. To reach a high level of industrial maturity, standards are needed to accurately represent shape transformations to enable design engineers to accurately communicate the functional requirements for manufacturing; as well as for metrologists and test engineers to inspect for product quality control. However, a fundamental challenge exists: How do we ensure that the design, manufacturing and functional intent for 4D Printed parts are accurately and unambiguously communicated between stakeholders across the design, manufacturing, inspection and supply value chain? This paper proposes a new standard for technical product documentation, geometric product specification and engineering drawings within British Standard BS 8888. To illustrate how the proposed standard could be applied, a use-case with different shape transformation properties are considered in a workflow.
