Algorithm for Applying 3D Printing in Prototype Realization in Accordance with Circular Production and the 6R Strategy: Case - Enclosure for Industrial Temperature Transmitter

Abstract

This paper investigates the implementation of additive manufacturing (AM) in circular production (CP) through the 6R strategy. The methodology allows designers to reconsider their decisions, correct mistakes or make specific changes to the model in all phases of the design process, from initial drawings to the finished product. CP enables the complete realisation of the model/prototype with a particular focus on environmental protection and the additional use of recycled waste. The proposed algorithm is tested through the design and manufacturing of an enclosure of an industrial temperature transmitter. Some of the weaknesses of additive manufacturing, such as mechanically damaged surfaces, surface roughness, and tearing of models on weak joints, have been investigated, and recommendations for mitigation are given.

The mechanical product finishing methods are described in detail in the paper as well, and in order to check the prototype functionality, some tensile, thermal stress and drop tests were performed, and the results were analysed and discussed. It was shown that significant savings in time, cost and material can be achieved by implementing AM in realising a fully functional prototype while simultaneously in line with the demands for CP and 6R.