Dissertation > Excellent graduate degree dissertation topics show

Study on Experimental Method and Techniques of Microforming

Author: ZhangJun
Tutor: DongXiangHuai
School: Huazhong University of Science and Technology
Course: Materials Processing Engineering
Keywords: Microforming Size effect Micro incremental forming Micro Stretch forming
CLC: TG301
Type: Master's thesis
Year: 2005
Downloads: 231
Quote: 2
Read: Download Dissertation

Abstract


The success of micro-electronics leads to a revolution in micro motion. Since the micro-manufacturing can apply to military affairs, space flight, information、astrology、industry, agriculture,etc. Lots of people and material resources have been devoted to the investigation of microforming in many countries. When the dimension of component are getting smaller and smaller, many physical phenomenon which are different from macroscopic world will occur, and the traditional theory should be modified. Therefore it is very important to develop the theory and experimental method accordingly. In this thesis, using experimental method and finite-element analysis, a basic research for microforming to find some characteristics in the area is accomplished. Firstly, the domestic and overseas developments of microforming, especially the characteristics and technology in this area, are introduced in detail. With the developments of MEMS, LIGA, different microforming technology has been applied in many fields. The technology of microforming, however, is still under theoretical investigation. The experts in Germany and America processed a series of examination research and made some progress. The research in this area in China is still a new subject and under the initial step. The theory concerning this field has also not been systematized. Then, the theory of microforming is introduced in detail. Since the size effects are very obvious with the diminution of dimension, the research of size effects is the emphases of microforming. Further more, with the diminution of dimension, it is more difficult to produce product. So more microforming method should be developed. Through the processing of thin sheet copper with numerical controlled single-point incremental forming machine,micro-products are obtained, which is a new way of microforming. In micro stretch forming experiments using thin sheet copper and aluminum, stress and strain distribution are investigated. Finally, finite element analysis of the micro stretch forming processes are carried out and the results are compared with the experimental results.

Related Dissertations

  1. Photovoltaic effect on the BaTiO 3 ferroelectric properties of thin films,O484.4
  2. Study on Size Effect, Bearing Capacity and Residual Pressures of Large Diameter Grouted Pile,TU473.1
  3. Experiment and Finite Element Analysis on Micro Forward Extrusion Process with Amorphous Alloy,TG139.8
  4. Research on Influence Factors on Metal Fatigue Strength,TG115.57
  5. The Effects of Strain-gradient In Micro Piezoelectric-Bimorph Power Harvesters,TN401
  6. The Research on Wear Behavior of High Chromium White Cast Iron and 7CrMnMoS Steel,TG143.1
  7. Stirrups confined concrete performance Size Effect,TU375
  8. Electroluminescence from Colloidal ZnS QDs,O472.3
  9. The Research of Rectangular Column Reinforced by Carbon Fiber Based on Secondary Load,TU375.3
  10. Quasi-brittle material strength size effect of statistical and numerical simulation approach,TU502
  11. Research on Proper Plane Dimension of Cement Concrete Pavement,U416.216
  12. Research on the FEM Simulation of Metal Micro-cutting Process,TG506
  13. Indentation Simulation to the Poss Organic-Inorganic Nano Hybrid Materials,TB383.1
  14. Study on the Method of Determining Strength Parameters about Post-earthquake Rock Slope,TU452
  15. The Establishment of Enzyme Inhibition and Fluorescence Quenching Systems and Their Applications in the Determination of Organophosphorus Compounds,X839.2
  16. Size and Temperature Dependence of the Band Gap of Semiconductor Materials,TN304
  17. Research on Size Effect in Micro Blanking of SUS304 Stainless Steel Foil,TG386.2
  18. Size Effect of Carbon Fiber Reinforced Cement-based Composite on the Electrical Properties of Force,TU528
  19. The Study on CFRC Mechano-Electric Properties and Size Effect,TU528.572
  20. The Influence of Contact States on Tribology Behaviour in Micro Sheet Forming,TH117.1
  21. A Study on the Nanometer Size Effect of Double Perovskite La2NiMnO6,TB383.1

CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal pressure processing > General issues > Theory of pressure processing
© 2012 www.DissertationTopic.Net  Mobile