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The purpose of this research is to determine what tests can be most useful in quality assurance and control when using fused filament fabrication (FFF) 3D printing machines. The quality of the bond between layers is critical for the structural integrity of the fused filament fabricated parts.

Therefore, to determine the influence of process parameters on the quality of parts’ tensile, flexural, notched and un-notched impact, test specimens were fabricated in polylactic acid (PLA) using FFF with different layer thicknesses, fill densities, orientation and print speeds. The mechanical properties were then assessed along with the accuracy and mass of the samples.

It is concluded that a notched impact test gives a measure of interlayer bond strength which can be used across build styles to track machine performance, and that this, together with the mass and dimensions of the impact-test specimens, offers an appropriate set of tests capable of tracking the mechanical properties of parts produced using the FFF technique.

Therefore, this research finding will be of value in benchmarking FFF machines for quality parts fabrications.

The purpose of this paper is to propose and evaluate a novel tool for the assessment and selection of rapid prototyping (RP)/manufacturing (RM) systems as alternative processes for low‐volume production in the machinery and equipment design sector. By analysing previous RP/RM selectors, this research addresses the necessary factors that a knowledge‐based engineering (KBE) system must include for the analysis, comparison and ranking of candidate technologies.

This research starts with the analysis of previous KBE solutions for RP/RM process selection, then a new KBE tool is proposed through the integration of artificial intelligence tools such as fuzzy logic, artificial neural networks (ANNs) and relational databases. Three case studies, provided by a Spanish machinery design centre, are used in order to measure the suitability of the proposed system for the assessment of real designs of special purpose mechanical parts.

The paper reports several improvements based on case studies which include a more suitable logic for process selection according to the designer's criteria and improvements in the overall parts cost estimation when compared to conventional parametric methods.

The newly proposed KBE system has proven useful especially in cases where non‐experts or students need to select a RP/RM process according to an initial product design specification. The cost estimation module based on ANNs provides a practical tool which may be used by academics but also practitioners who wish to automate product costing calculations.

Unlike previous solutions, the proposed system provides a straightforward means for RP/RM selection by an overall ranking of candidate processes, part cost estimation and materials selection. The main contribution is the modular design and logical planning, that overcomes the dilemma: material‐or‐process first.

The purpose of this paper was twofold: first, to determine if rotating bending could be used as an effective way of determining the fatigue behaviour of laser-sintered nylon, and second, to examine whether the fatigue behaviour of laser-sintered PA12 showed any significant anisotropy.

Specimens were measured to obtain dimensional accuracy, density and surface roughness levels. Then, uniaxial tensile and rotating-bending fatigue tests were performed. A purpose-built test-jig has been used to subject hourglass-shaped specimens to reversed bending at two frequencies: 50 and 30 Hz. Additionally, thermal and microstructural analyses were performed to understand the underlying mechanisms of failure.

The experiments suggest PA12 specimens will fail in fatigue following the conventional fatigue mechanisms observed in previous research with ductile polymers. Although high-frequency loading caused a heat build-up in the specimen, temperatures stabilised between 20 and 30°C, suggesting that rotating-bending fatigue at frequencies of up to 50 Hz is a valid way of determining the fatigue behaviour of laser-sintered PA12 specimens. Stresses below 20 MPa led to fatigue lives above 1 million cycles. Some anisotropic behaviour was observed in the fatigue test results, with specimens made orientated with the Z axis showing the lowest fatigue lives on average, but an endurance limit of approximately 15 MPa seems to be common for all specimens regardless of their build orientation.

The observed endurance limit of 15 MPa did not depend significantly on the orientation at which a part was built – meaning that it may be possible to guarantee a service life for a part which does not depend on part orientation within a build. Clearly, good-quality control will also be required to ensure performance, but this has important implications for the design of laser-sintered PA12 parts for realistic service conditions.

To our knowledge, this is the first paper to present rotating-bending fatigue data for laser-sintered PA12 parts, and the first to identify an endurance limit which is independent of part orientation.

This paper seeks to present the results of a study carried out within rapid manufacturing (RM) service providers and engineering centres in Northern Spain. By disclosing strategies for their everyday operation, it is intended to show how the internal expertise acquired overtime copes with the lack of standards within this industry.

The study was deployed by means of a survey including four main issues: RM concepts, process planning, materials and costs. Questions range from general RM perceptions to specific production criteria like: layer thicknesses, laser power, quality assurance methods, etc. A special emphasis is made on cost parameters, since they play a major role when selecting the final manufacturing route.

The so‐called “de facto standards” were found to be widely used in order to minimize production risks for RM. The study also suggests the need for specific RM standards based on key issues like material recycling, process planning and costs assignment.

The study is mainly focused on additive RM processes used in Spanish centres. Although, some other technologies applied elsewhere might not be considered, it is assumed that most of the technologies mentioned in this study are available worldwide, thus providing valuable information to increase the general RM base of knowledge.

Unlike most of the RM literature based on benchmarking of processes to provide information, this paper shows first hand data from users and service providers, showing RM practices and preferences from a different approach.

This chapter's objective is to analyze, with a long-term perspective, the formation of an entrepreneurial culture in Mexico's Midwest, specifically in the state of Jalisco, in terms of the geographical environment, the culture in general, and the local economic institutions that, when viewed interconnectedly, will globally impact the practices, representations, and imaginaries of persons who at a given time have made the decision to undertake profitable economic activities – individual and collective entrepreneurs, in other words. To this end, we have divided the text into two sections. In the first, we conceptually review what we understand as entrepreneurial culture; in principle, we deconstruct its terms and then conjugate them from a social science perspective. We also emphasize the importance of studying the milieu as a scenario of action with different arenas, where a variety of agents have been involved. In the second part, without sidelining conceptual analysis, we present concrete empirical evidence of the role played by culture and local economic institutions that shape entrepreneurial culture in Midwestern Mexico over time, specifically in Jalisco. The text ends with some final considerations.

At the 21st Conference of the Parties to the United Nations Convention on Climate Change (COP 21) in Paris, 195 governments reached an agreement pivotal not only for countries but also for companies. The Paris Agreement makes it impossible to practice business as usual. The transition to a low-carbon coffee industry could be achieved by fostering corporate sustainability. Accordingly, the purpose of this paper is to provide empirical evidence of how to adopt the principles of Paris Agreement by enhancing the corporate sustainability of a Mexican coffee-roaster company using the inventory phase of the life cycle assessment tool.

The data collection process followed the requirements of the International Reference Life Cycle Data System Handbook, developed by the Institute for Environment and Sustainability in the European Commission Joint Research Centre, and data on packaging materials and energy production were drawn from a commercially available database in the LCA software SimaPro.

Compiling data on the energy of the firm’s material flows in a firm revealed opportunities to improve energy efficiency and to reduce greenhouse gas emissions. The results of the inventory analysis can be used to evaluate the specific environmental impacts of the coffee-roasting process at this Mexican coffee company. Data compilation activities for energy flows identified the need to install liquefied petroleum gas measuring devices and individual measuring devices for electricity consumption in different areas of the coffee plant. It is recommended that, while implementing this option, the company also develop an energy management program to achieve energy efficiency.

The inventory data in this case study permit comparisons of the current state of the system studied and its possible future states and offer stakeholders relevant information on resource use. Similarly, the project results provide the basis for future research on environmental performance in the coffee industry in Mexico and for the development of policies regarding the production process in the coffee supply chain. Consequently, this research can help fulfil Mexico’s commitment to the Paris Agreement.

Reaching the goal of the Paris Agreement will require gathering key information for each single company. The current case study has provided key data to foster the principles of sustainability in the Mexican coffee industry to help this sector to transit toward sustainable development, which is a new demand of the Mexican society. Even though it may seem simple, this is the hardest step for enhancing stakeholder involvement in corporate sustainability.

The main contribution of this research to science and practice is to confirm that fostering corporate sustainability is easier and more feasible when energy flow information is available.

The purpose of this paper is to discuss the deepening understanding of the diverging pollution prevention (PP) and occupational and safety practices undertaken in the Mexican maquiladora industry.

This study was outlined by a modified version of the PP Program based on a continuous improvement cycle, which identifies areas of opportunity and then, proposes ideas for solving problems. This study was carried out based merely on a quantitative approach. However, when this was not possible, parameters were determined under a qualitative or semi-quantitative approach.

Findings in this study have proven that Cleaner Production and Pollution Prevention (CP&PP) programs are successful to obtain not only environmental but also occupational benefits at the same time; therefore, they should not be seem only as an environmental tool but as a sustainability tool that have the potential to make possible the creation of a sustainable production system in the maquiladora industry where products and processes, and operations are designed to be not risky for Mexican workers, communities, and environment.

The study revealed empirical environmental and occupational practices that took place in nine maquiladoras located in the Northwest of Mexico and analyzes how these practices affect Mexican workers in this industry and their environment.

The study evaluated the feasibility and usefulness of CP&PP programs in the maquiladora industry under an integrative approach that takes into account environmental and occupational aspect in order to understand how this industry is changing their production patterns toward sustainability.

The purpose of this paper is to debate how companies may better become a sustainable learning organization by offering the most used and insightful concepts of sustainability.

Through literature review, learning organization and sustainability perspectives are explored and compared.

Learning sustainability experiences around the world have provided tools and mechanics to companies to enhance economic growth without affecting environment and communities.

The paper explains points of convergence and divergence between learning organization and sustainability approaches and provides insightful remarks from literature.

The concepts of sustainable development (SD) and management systems (MS) are finding increasing acceptance in a variety of fields, including academy, politics, and non‐governmental organizations. These concepts are also being used by the general population. This paper aims to describe the perception of different experts by discussing the usefulness of sustainability management systems (SMS) as holistic systems that might integrate environmental, social, and economic elements.

This research was framed by the general systems theory and its nature is totally qualitative and exploratory in order to understand the significant attributes that affect or benefit a management system to reach sustainability. A total of 14 interviews were conducted with several experts around the world. Some are professional persons in sustainability issues in general, and some in environmental, health and safety (EHS) issues in particular.

The results shows that, although there is a continuous debate on the sustainability approach, several core elements can be addressed for sustainability management systems (SMS). For instance, 71.4 percent of the interviewees agreed that management systems are useful for sustainable development, or at least potentially useful, and 42.9 percent of the experts declared that having a clear understanding of the long‐term economic benefits for the company is an important incentive for their implementation.

Interviews were conducted with a limited number of experts and there was no field verification of claims. Therefore, conclusions derived from these sources depend on the veracity of the information provided by participants. Expert bias may also have an impact on the outcomes of this research.

The findings provide management systems' practitioners with key elements when sustainability management systems are being created, maintained and evaluated.

The findings are not results from general concepts, but rather elicited from empirical data from fourteen sustainability, and health and safety experts around the world.