Tadeusz Sendzimir - Polish engineer and inventor known as the "Edison of metallurgy." He is best known for three inventions: the continuous hot-dip galvanizing method (known today as the Sendzimir process), a production line for continuous cold rolling of sheet metal, and the so-called planetary rolling mill. Tadeusz Sendzimir (1894-1989) - an outstanding Polish engineer, designer and inventor, counted among the most important figures in the history of world metallurgy. His technologies are still used today in steel mills around the world. He is sometimes called the "Leonardo da Vinci of metallurgy." Tadeusz Sendzimir's most important achievements 1. revolution in the process of rolling steel - Sendzimir's rolling mill (Z-mill) His most famous invention is the cluster rolling mill (the so-called Z-mill), which allows steel sheets to be rolled to extremely small thicknesses - even below 0.01 mm. Features: tremendous precision and material uniformity, high strength of rollers due to their design, ability to roll stainless steel and difficult alloys. This technology has transformed the steel industry. Thousands of rolling mills of its design are still in operation in the US, Europe and Asia. 2. galvanizing of steel - Sendzimir process (continuous hot-dip galvanizing). He developed one of the most important processes of continuous hot-dip galvanizing, known as: "the Sendzimir process", "Se method", "Sendzimir process". It makes it possible to obtain an extremely even and durable zinc coating, providing high corrosion resistance. To this day, it remains the standard in the production of automotive, construction and structural sheet metal. 3. more than 120 patents and global influence It has registered more than 120 patents worldwide relating to: rolling, metalworking, continuous galvanizing, construction of rolling mills and metallurgical furnaces. He worked with major metallurgical concerns in the USA, Japan, Germany and Switzerland. His company T. Sendzimir Inc. still exists today. 4 World career Born in Lviv, he was educated in Wroclaw, Krakow and Vienna. He worked in Poland, Germany, the USA and Austria. After World War II, he settled in the US, where he developed his technologies on a global scale. Influence Tadeusz Sendzimir is one of the most influential Polish inventors of the 20th century. His technologies: revolutionized steel production, enabled the mass production of thin and durable sheet metal, are used in the automotive, aerospace, electronics and construction industries. He is placed in the pantheon of Polish inventors alongside Czochralski, Szczepanik and Lukasiewicz.