Studia Commercialia Bratislavensia. Dec2013, Vol. 6 Issue 24, p536-552. 17p.
Business models, Supply chains, Supply & demand, Manufacturing processes, and Industrial arts
The use of the Rapid Manufacturing (RM) technologies to manufacture end used product has become a more viable proposition these days than it was in the past. However, the characteristics of the technology allow for unconventional usage and subsequent supply chain support requirements. Therefore, it can be argued that the RM supply chain concepts have the potential room for further evolution. This research focuses on the possibility and structure of a business model tailored for the unconventional RM supply chain requirements. In this regard, the paper proposes the Virtual Trading System or VTS, which is an e-business platform that could potentially provide an alternative to the RM industry, in terms of supply chain functionality. The research outlines the structure of such a business model in detail, based on the requirements of the RM industry. [ABSTRACT FROM AUTHOR]
Supply chains, Energy consumption, Cost estimates, Industrial costs, Manufacturing industries, and Sustainability
The supply chains found in modern manufacturing are often complex and long. The resulting opacity poses a significant barrier to the measurement and minimization of energy consumption and therefore to the implementation of sustainable manufacturing. The current article investigates whether the adoption of additive manufacturing (AM) technology can be used to reach transparency in terms of energy and financial inputs to manufacturing operations. AM refers to the use of a group of electricity-driven technologies capable of combining materials to manufacture geometrically complex products in a single digitally controlled process step, entirely without molds, dies, or other tooling. The single-step nature affords full measurability with respect to process energy inputs and production costs. However, the parallel character of AM (allowing the contemporaneous production of multiple parts) poses previously unconsidered problems in the estimation of manufacturing resource consumption. This research discusses the implementation of a tool for the estimation of process energy flows and costs occurring in the AM technology variant direct metal laser sintering. It is demonstrated that accurate predictions can be made for the production of a basket of sample parts. Further, it is shown that, unlike conventional processes, the quantity and variety of parts demanded and the resulting ability to fully utilize the available machine capacity have an impact on process efficiency. It is also demonstrated that cost minimization in additive manufacturing may lead to the minimization of process energy consumption, thereby motivating sustainability improvements. [ABSTRACT FROM AUTHOR]