Interesting....I've seen other videos on youtube where they make these kinds of rolls or shafts by squeezing a heated slab of metal in a press (forging). I wonder how the end product compares to this process, where they simply cast it in the shape they want? Would the forged product be stronger?

In response to the climate changes brought on by global warming, the international community is actively pursuing activities aimed at achieving carbon neutrality by focusing on effective methods for reducing greenhouse gases. While some are calling for stronger regulations, such as implementing a carbon border tax and a plastic tax, there has been a rapid increase in investments being made into the eco-friendly business sector. The energy sector is at the center of these changes, as we can see the industry shifting from the usage of fossil fuels for power generation to more sustainable energy sources in order to realize the vision of a low-carbon economy. In line with the global trends centered around eco-friendly business practices, the South Korean government joined the commitment to the Paris Climate Agreement of reducing greenhouse gases to 37% below BAU(business-as-usual) levels. To this end, the “2050 Carbon Neutrality Strategy” was released in December 2020, outlining the detailed plans for implementing the related initiatives. With an increasing number of countries declaring their commitment to carbon neutrality and with ESG management being promoted at a wider scale, it is forecast that there will be some additional upward adjustments of the targets in 2021. Thus, we expect that the governmental policies concerning the shift to sustainable clean energy will be further strengthened. With the world being hit by the COVID-19 pandemic, this had the effect of further highlighting the seriousness of the climate change issue, caused some fundamental changes to the criteria used in assessing companies’ sustainability and emphasized the importance of managing ESG risks, along with financial results like profitability and revenue. Despite the worldwide drop in energy demand caused by the COVID-19 situation, the demand for renewable energy continued to show a steady growth, signifying that the paradigm shift in the energy sector had already start