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The paper presents the results of research carried out in one of the domestic enterprises of the metallurgical industry. It is an enterprise mainly engaged in the production of steel pipes with seams welded induction. The production of welded pipes generates lower costs compared to the production of seamless pipes, therefore, the world's thinner welded pipe mill with thinner walls is still being developed, which can not be produced using the methods used to manufacture seamless pipes. Production is also less material consuming for seamless pipes (saving steel). In most of the major manufacturers of pipes is observed systematic seek to increase the production of welded pipes and reduce the production of seamless pipes for such assortments as drill pipe, boiler pipes and pipes thick-walled construction. The aim of the research is to detect incompatibilities in the production of welded pipes, which significantly affect the quality of the final product and finding sources of these incompatibilities. In the course of these studies, quality management tools as the Pareto-Lorenz and Ishikawa diagrams and the FMEA method are used. These tools make it possible to detect significant incompatibilities and errors arising from the planning stage and during the manufacturing process of welded pipes in the analyzed company. While using the Ishikawa diagram and FMEA method sought to eliminate the possibility of any faults and incompatibilities. The results obtained will allow to improve and streamline the production process of welded pipes.

Keywords: Production of welded pipes, Pareto-Lorenz diagram, Ishikawa diagram, FMEA method

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