Although Industry 4.0 has received much attention in recent years due to the possibility of increasing companies’ productivity, the implementation process is complex. The aim of this study is to present a holistic model for implementing Industry 4.0 based on cleaner production as a fundamental tool for the development of production systems that meet the Sustainable Development 04026-002Goals (SDGs), and social stakeholders that cooperate with this implementation process, helping to develop sustainable infrastructure, processes and technologies to increase the sustainable transformation of these companies towards Industry 4.0. The method used was literature research, and the Delphi technique was used to ask specialists to contribute with their experience to evaluate and propose improvements to the model, in the form of a consensus. The model contributes to the Sustainable Development Goals 9, 12 and 15. This holistic and sustainable model is a contribution to theory and practice, helping executives, technicians, entrepreneurs and those involved with Industry 4.0 to base the implementation process in the needs and specificities of each company, avoiding the “one fits all” models, considering the peculiarities of each company and the complexity of the implementation process in a more efficient and collaborative digital production ecosystems base, seeking to reduce inequalities, through the joint effort of social stakeholders to find ways to restore and/or improve social harmony, impacted by Industry 4.0.

Currently, repair and restoration through direct laser deposition (DLD) technology is one of the newest applications of metal additive manufacturing technology. This technology could revolutionize many industrial sectors, reducing material waste, component lead times and carbon footprint. However, studies on the use of additive manufacturing for repair and restoration through DLD technology are still scarce. This article aimed to identify and categorize the use of additive manufacturing in maintenance through DLD technology through a systematic literature review.

The industrial impacts on the environment need to be minimized to reduce climate change, which will benefit human beings. Industry 4.0, the new production paradigm, promises productivity gains for companies that manage to implement it, but it is also dependent on natural resources, impacting the environment. The aim of this study is to identify and analyze possible cleaner production strategies associated with Industry 4.0 to optimize manufacturing systems in Industry 4.0 implementation projects, in addition to reducing the environmental impacts of these companies. Through a literature search, cleaner production strategies associated with Industry 4.0 were identified and classified into ten dimensions (strategy, waste, recycling, life cycle, resources, energy, production, work, performance and environment) contributing to the theory. The possibilities of using Industry 4.0 technologies were analyzed to meet each dimension. The relevance of this study lies in presenting possibilities for using and developing technologies and applications to meet these dimensions of cleaner production and helping those involved in Industry 4.0 projects to implement it more stably, contributing to the theory and practice.

Este trabalho visa apresentar um projeto de fabricação de um produto inovador e, ao mesmo tempo, que atenda às necessidades do consumidor, em termos de vantagens de custo, durabilidade, segurança, ecologicamente correto e sustentável, em comparação com a concorrência. Um triciclo infantil foi definido como o produto a ser contemplado com esta inovação, onde o foco é o desenvolvimento de um projeto completo, que inclui o levantamento de riscos e viabilidade, após análises e cálculos preparados para que, com base neles, a tomada de decisões sobre o investimento na continuidade do projeto através da fabricação do produto, de forma segura, a fim de obter sucesso no mercado e retorno do investimento. Definir um processo significa conhecer as características, que juntos formam um meio para atingir os objetivos de qualidade, conhecer os equipamentos mais adequados para utilizar, conhecer informações sobre operações, manutenção e controle, a fim de desenvolver processos capazes de atender as características requeridas para o produto, utilizando ferramentas para desenvolvimento de processos, gestão da qualidade, entre outros. Além da adequação, algumas ações são necessárias, como o treinamento

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