Monday 30 May 2011

Sheet Metal Die Designer

Sheet Bending

Sheet Metal Die

Sheet Metal Die Bending 
Objective
It’s a good idea to start with the basic definition of sheet metal. Sheet metal can be classified or can be understood as a flat metal sheet. Depending on its thickness it is either called a leaf/foil or a plate. Very thin metal sheet is called a leaf foil and metal sheets thicker than 6mm are called as plates. Sheet metal is one of the basic forms of manufacturing where the metal sheets are cut and bent into various forms depending upon various needs and uses. Normally there are two processes involved in Sheetmetal fabrication they are Deep Drawing and Flat Rolling. Now let us look at these two processes with some detail.

Deep Drawing   Deep drawing is a sheet metal forming process in which a sheet metal blank is radially drawn into a forming die by the mechanical action of a punch. It is thus a shape transformation process with material retention. The process is considered “deep” drawing when the depth of the drawn part exceeds its’ diameter. This is achieved by redrawing the part trough a series of dies. The flange region (sheet metal in the die shoulder area) experiences a radial drawing stress and a tangential compressive stress due to the material retention property. These compressive stresses (hoop stresses) result in flange wrinkles (wrinkles of the first order). Wrinkles can be prevented by using a blank holder, the function of which is to facilitate controlled material flow into the die radius.

Draft Designed By 
                               Atif Raees Ahmad Noor 

Auto Cad 2010 Commands:
  1. 3D Creates three-dimensional polygon mesh objects
  2. 3DARRAY Creates a three-dimensional array
  3. 3DCLIP Invokes the interactive 3D view and opens the Adjust Clipping Planes window
  4. 3DCORBIT Invokes the interactive 3D view and enables you to set the objects in the 3D view into continuous motion
  5. 3DDISTANCE Invokes the interactive 3D view and makes objects appear closer or farther away
    3DFACE Creates a three-dimensional face
  6. 3DMESH Creates a free-form polygon mesh
  7. 3DORBIT Controls the interactive viewing of objects in 3D
  8. 3DPAN Invokes the interactive 3D view and enables you to drag the view horizontally and vertically
  9. 3DPOLY Creates a polyline with straight line segments using the CONTINUOUS linetype in three-dimensional space
  10. 3DSIN Imports a 3D Studio (3DS) file
    3DSOUT Exports to a 3D Studio (3DS) file
  11. 3DSWIVEL Invokes the interactive 3D view and simulates the effect of turning the camera
  12. 3DZOOM Invokes the interactive 3D view so you can zoom in and out on the view


 Contact : 03452641467
Email. atifraees92@gmail.com
Source : www.machinecalmachinery.wordpress.com


2 comments:

  1. Thank you for your articles that you have shared with us. Hopefully you can give the article a good benefit to us. Deep Drawing

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