Manufacturing activities consume a significant share of energy and natural resources and create some irreversible environmental impacts leading to climate change. A recent report from IPCC has highlighted the seriousness of global climate change. To mitigate the environmental burdens from manufacturing activities, it is necessary to identify and visualize them. Tools based on life cycle assessment (LCA) method have proven capabilities to visualize the hotspots during different stages of product life cycle and to support decision-making. This paper presents friction stir processing (FSP) of pure magnesium for bio implants and its environmental impact assessment in the Indian context. The study is aimed to visualize the FSP of pure Mg and major hotspots in the process to improve sustainability. The primary data for the inventory analysis was collected using real-time observations during each step of the process; whereas for secondary data, product catalogs and reports were utilized. The analysis shows that the production process of magnesium and energy used during electric discharge machining (EDM) have the highest environmental impacts. Additionally, in magnesium production, the direct emissions generated due to the burning of fossil fuel are the major contributors to these impacts. The steel used for FSP tool production and brass wire used in EDM for sizing of the magnesium plates, are also found to be contributing significantly toward water depletion potential. The study provides a conceptual approach including possible technological interventions to improve the process sustainability. The study suggests adopting advanced technologies of practical significance like ‘zinc coated cutting wires’ for improving the environmental performance of the process.

制造业活动消耗了大量的能源和自然资源，并造成一些不可逆转的环境影响，从而导致气候变化。IPCC最近的一份报告强调了全球气候变化的严重性。为了减轻制造活动带来的环境负担，有必要对其进行识别和可视化。基于生命周期评估（LCA）方法的工具已被证明具有在产品生命周期的不同阶段可视化热点并支持决策的能力。本文介绍了用于生物植入物的纯镁的摩擦搅拌工艺（FSP）及其在印度环境中的环境影响评估。该研究旨在可视化过程中纯镁和主要热点的FSP，以提高可持续性。在该过程的每个步骤中，使用实时观察来收集库存分析的主要数据。而对于次要数据，则使用产品目录和报告。分析表明，镁的生产过程和放电加工（EDM）中使用的能量对环境的影响最大。此外，在镁生产中，由于化石燃料燃烧而产生的直接排放是造成这些影响的主要因素。还发现，用于FSP工具生产的钢和用于EDM的镁丝用于定型镁板的尺寸，对水耗的潜力也有很大的贡献。该研究提供了一种概念性方法，包括可能的技术干预措施，以提高过程的可持续性。