From Machining Chips to Raw Material for Powder Metallurgy—A Review

Chips are obtained by subtractive processes such as machining workpieces and until recently considered as waste. However, in recent years they are shown to have great potential as sustainable raw materials for powder technologies. Powder production from metal chips, through the application of solid-state processes, seems to be an alternative to conventional atomization from liquid cooled with different fluids. However, chip material and processing have an essential role in the characteristics of powder particles, such as particle size, shape, size distribution and structure (4S’s), which are essential parameters that must be considered having in mind the powder process and the metallurgy applications. Moreover, different approaches refereed in the application of this new “powder process” are highlighted. The goal is to show how the actual research has been transforming subtractive processes from a contributor of wastes to clean technologies.

Battery Pot Plants with Magnets and Adjacent Balloon as Substitutes for Light

In a future of clean technologies and innovations, it is important with knowledge of new Power sources in terms of the impact on living plants and surrounding life. Organic battery plants with electric components are constructed and analysed. The purpose is to study how illumination i.e. light energy, can be replaced with electricity and matter. The novelty of the paper is the constructions; namely a Balloon capacitor next to a current amplifier in the lines of a pot battery with a plant that should prosper, and the related analysis. Also certain aspects of small magnetic fields alone are invoked. Doi: 10.28991/HEF-2021-02-02-05 Full Text: PDF

Role of Clean Technology in Sustainable Manufacturing

Sustainable manufacturing is the backbone for the development of standard of living of the country along with its industrial growth. It is a process for meeting development needs while maintaining the stability, integrity and beauty of natural biotic systems such that societal consumption of natural resources is incommensurate with the rate which the nature can replenish itself. It can be more cost and time efficient, especially for small scale production and customized products. In order to have complete and efficient structure of sustainable manufacture it must produce green products by using clean technologies. The manufacturing industries which can integrate the aspect of clean technologies in their technical and financial decisions will hold an important role in winning the everlasting future race. The main objective of this paper is to elaborate the concept and implementation of clean technologies in sustainable manufacturing which includes the process, models and impact assessment of green technologies. The ideas presented in this paper will be quite useful for the researchers and industrialists who are interested in the field sustainable manufacturing.