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FEM for machining simulation
Vojtek, Aleš ; Madaj, Martin (referee) ; Zouhar, Jan (advisor)
The introduction to turning basics, chip separation process, cutting force generation and description of the finite element method. With this knowledge, a cutting simula-tion of AISI 1045 steel was done for 3 different rake angles, which was simplified by using an orthogonal machining model. The next simulation was cutting of AISI 6150 steel with the use of a 3D model of the grooving insert. The results of these simulations were then compared to the experimental results, and feasibility of finite element method was determined together with future recommendations for acquiring more pre-cise results.
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FEM for machining simulation
Vojtek, Aleš ; Madaj, Martin (referee) ; Zouhar, Jan (advisor)
The introduction to turning basics, chip separation process, cutting force generation and description of the finite element method. With this knowledge, a cutting simula-tion of AISI 1045 steel was done for 3 different rake angles, which was simplified by using an orthogonal machining model. The next simulation was cutting of AISI 6150 steel with the use of a 3D model of the grooving insert. The results of these simulations were then compared to the experimental results, and feasibility of finite element method was determined together with future recommendations for acquiring more pre-cise results.
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The Simulation of impact test on R7T steel
Severa, Martin
Charpy impact is dynamic experiment that we detect material behaviour under high loading rates. Charpy impact test is used as method for brittle farcture characterization. In this work material model based on Johnson – Cook equations was used for prediction of the dynamic behaviour of the experimental material. Comparison of numerical solution and data obtained in experimental test is presented.
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