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Mar 30, 2024 •744 likes •951 views

Ministrio da Educao Universidade Federal do Paran Setor de Tecnologia Programa de Ps-Graduao em Engenharia Mecnica (PGMec) Workgroup Leader Prof. Dr. Paulo Victor Prestes Marcondes marcondes@ufpr.br Goal: To

  1. Ministério da Educação Universidade Federal do Paraná Setor de Tecnologia Programa de Pós-Graduação em Engenharia Mecânica (PGMec) • Workgroup Leader • Prof. Dr. Paulo Victor Prestes Marcondes • marcondes@ufpr.br Goal: To improve the computational prediction of the springback for Advanced High Strength Steel - AHSS . through the implementation during modeling of factors that take into account the mechanical material properties variation during forming.

  2. THE MEHANICAL PROPERTIES INFLUENCE ON PREDICTION OF SPRINGBACK FOR AHSS Springback according to the material grade (WorldAutoSteel, 2014)

  3. Automotive steels can be classified in several different ways. Here is a Lightweigthing: What´s a next? schematic of different grades, its properties and forming characteristics. Total elongation (%) Tensão de escoamento (MPa) Tensile Strenght (MPa) (World Auto Steel, 2014)

  4. INFLUENCE OF TEMPERATURE IN DEEP DRAWING Workgroup Leader Prof. Dr. Paulo Victor Prestes Marcondes Manufacturing Technology Forming

  5. Temperature can minimize springback but it will affect the FLC.

  6. THE INFLUENCE OF ELASTIC MODULUS VARIATION EFFECT ON PREDICTION OF SPRINGBACK FOR AHSS Workgroup Leader Prof. Dr. Paulo Victor Prestes Marcondes Manufacturing Technology Forming

  7. Industrial challenge Improved springback prediction

  8. Study of material elastic behavior for better characterization in the simulation software Unloading-loading cycles obtained from the uniaxial tensile tests: (a) DP600-A ​ , (b) detail showing the behavior of the unloading elastic modulus and (c) measured elastic modulus at various strains.

  9. THE INFLUENCE OF BAUSCHINGER EFFECT ON PREDICTION OF SPRINGBACK FOR AHSS Workgroup Leader Prof. Dr. Paulo Victor Prestes Marcondes Manufacturing Technology Forming

  10. THE INFLUENCE OF BAUSCHINGER EFFECT ON PREDICTION OF SPRINGBACK FOR AHSS • Determining a new method for obtaining the Bauschinger effect curves for AHSS.

  11. FORMING ANALYSES TO DIFFERENT BLANKHOLDER FORCES Workgroup Leader Prof. Dr. Paulo Victor Prestes Marcondes Manufacturing Technology Forming

  12. FORMING ANALYSES OF AHSS TO DIFFERENT BLANKHOLDER FORCES To evaluate the influence of blankholder force in the formability of "Dual Phase" DP600 steel.

  13. EXPERIMENTAL AND NUMERICAL ANALYSIS ON STRAIN DEVELOPMENT DURING HOLE EXPANSION OF AHSS Workgroup Leader Prof. Dr. Paulo Victor Prestes Marcondes Manufacturing Technology Forming

  14.  Characterize material mechanical properties, sheet formability and crack propagation for AHSS.

  15. THE UNION OF SHEET METAL BY CLINCHING Workgroup Leader Prof. Dr. Paulo Victor Prestes Marcondes Manufacturing Technology Forming

  16. Industrial challenge

  17. Incremental Sheet Forming Workgroup Leader Prof. Dr. Paulo Victor Prestes Marcondes Manufacturing Technology Forming

  18. • CNC Machines (CAD/CAM) • Formability better than Deep Drawing • Small Batch • No Die Required • Reduced Time and Cost • Customized Products

  19. Incremental Forming Force Punch Wear FLC’s Stretching capabilities Deep Drawing Simulation capabilities

  20. THANK YOU For further informations feel free to ask for scientific papers related to the subjects • Prof. Dr. Paulo Victor Prestes Marcondes • Workgroup Leader • marcondes@ufpr.br • 55 (41) 3361-3431

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