The stress analysis of the milling machine structure

Abstract

Abstract The article presents a ways of checking the stress of milling machine construction made of steel profiles. The aim of the article was designation of strength parameters. In order to designate basic parameters like deformation or stress, one of most popular mesh methods was used – finite elements method. In the work, load of the milling machine on the upper and the lower frame was analysed. The models were analyzed due to the quality of the mesh produced, based on the amount of occurrence of a given type of element. For this purpose, the statistics included in the program were used, which allows a scale of 0 to 1 to determine the quality of the element. Despite the use of most of the Tet10 type elements, and the minority of the type We15 and Hex20, the mesh analysis allowed to believe in the accuracy of computational solutions. Process of tension designation went through without errors, and designated properties didn’t get close to yield point for given material. Received deformations are also low therefore they shouldn’t affect the milling machine work precision in required range in any significant way.