Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

FE analysis of multi-cycle micro-forming through using closed-die upsetting models and forward extrusion models

Pan, W. and Qin, Y. (2008) FE analysis of multi-cycle micro-forming through using closed-die upsetting models and forward extrusion models. Journal of Materials Processing Technology, 201 (1-3). pp. 220-225. ISSN 0924-0136

[img]
Preview
PDF (Pan_W_-_strathprints_-_FE_analysis_of_multi-cycle_micro-forming_through_using_closed-die_upsetting_models_and_forward_extrusion_models.pdf)
Download (83Kb) | Preview

    Abstract

    Research in micro-forming leads to the investigation of the effects of heat generation in the workpiece and temperature changes in the tools during the forming. The results reported in this paper relate to the study of cold micro-forming processes which are usually ignored on its thermal characteristics. Two closed-die upsetting models were used for the simulation of the forming of micro-parts in single forming trial and in mass production (multi-cycle loading), respectively. An elastic-plastic finite element simulation was performed for a single forming trial. The heat transferred to the die, computed from the simulation, was then used as an input for the multi-cycle heat loading analysis in the die. Two materials: silver and low carbon steel, were used as the work material. The results show that the die saturation temperature could still go up to 100 °C for small size dies, which is significant for the forming of micro-parts. Forming errors due to the die-temperature changes were further computed, which forms a basis for developing considerations on the forming-error compensation. Using the same methods and procedures, forming of a micro-pin via forward extrusion was analysed.

    Item type: Article
    ID code: 9459
    Keywords: FE analysis, multi-cycle micro-forming, closed-die upsetting models, forward extrusion models, Mechanical engineering and machinery, Manufactures
    Subjects: Technology > Mechanical engineering and machinery
    Technology > Manufactures
    Department: Faculty of Engineering > Mechanical and Aerospace Engineering
    Faculty of Engineering > Design, Manufacture and Engineering Management
    Related URLs:
      Depositing user: Strathprints Administrator
      Date Deposited: 21 Feb 2010 14:21
      Last modified: 18 Jul 2013 15:15
      URI: http://strathprints.strath.ac.uk/id/eprint/9459

      Actions (login required)

      View Item

      Fulltext Downloads: