Rosochowski, A. and Presz, W. and Olejnik, L. and Richert, M. (2007) Micro-extrusion of ultrafine grained aluminium. International Journal of Advanced Manufacturing Technology, 33 (1-2). pp. 137-146. ISSN 0268-3768Full text not available in this repository. (Request a copy from the Strathclyde author)
Microforming of normal, coarse grain (CG) metals leads to scale problems which originate from the fact that the grain size becomes comparable to the part size. A possible way of dealing with these problems is replacing CG metals with ultra-fine grained (UFG) metals. UFG metals can be produced in bulk by severe plastic deformation (SPD). This paper describes using UFG aluminium 1070 for preliminary trials of micro extrusion of a cylindrical cup. The process of producing bulk UFG aluminium by SPD is explained and the material obtained characterised. The preparation of micro billets for the extrusion operation is discussed. Backward extrusion is carried out for two types of material, CG and UFG. This enables a comparison of the material behaviour and product characteristics. Using UFG aluminium in microforming results in more uniform products with improved mechanical properties.
|Keywords:||micro-extrusion, microforming, severe plastic deformation, ultra-fine grained metals, design engineering, Engineering design, Mechanical Engineering, Software, Industrial and Manufacturing Engineering, Control and Systems Engineering, Computer Science Applications|
|Subjects:||Technology > Engineering (General). Civil engineering (General) > Engineering design|
|Department:||Faculty of Engineering > Design, Manufacture and Engineering Management|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||21 Sep 2009 12:47|
|Last modified:||06 Jan 2017 06:36|