Materials used for manufacturing precessional planetary transmissions

Abstract

In this project, a detailed study was conducted on precessional planetary transmissions, focusing on their types (classification, structural and mechanical characteristics), manufacturing methods, and applications across various fields. These transmission systems are known for their compactness, high efficiency, and ability to transmit motion and power with precision, making them suitable for various engineering fields, including robotics, aerospace, and automotive systems. As part of our research we developed a Solidworks model of the crankshaft component, a key element within the transmission system, and subsequently produced a physical prototype using Raise3D E2 printer This allowed us to assess the geometrical and functional aspects of the design. A central objective of the project was the careful and well-justified selection of materials suitable for constructing such transmissions. To achieve this, we examined a broad spectrum of materials, analyzing their mechanical, thermal, and wear-resistance properties in contexts that simulate the operational conditions of the transmission. This comparative study was carried out using data from scientific literature, technical standards, and case studies of existing industrial applications. This comprehensive approach was essential in ensuring that the final product could be manufactured not only with maximum reliability and operational stability but also with reduced production costs. The intention was to avoid economically disadvantageous choices and promote solutions that are feasible for mass production. Ultimately, the project emphasized the importance of integrating material science with mechanical design to enhance both the performance and the sustainability of modern transmission systems.