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Sheet Metal Forming Processes

Sheet Metal Forming Processes. Manufacturing Processes. Outline. Introduction Shearing Blanking Bending Deep Drawing Stamping Dies Progressive Dies Transfer Dies Spinning. Sheet Metal Working. Products: automotive fenders washers stamped parts channels.

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Sheet Metal Forming Processes

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  1. Sheet Metal Forming Processes Manufacturing Processes

  2. Outline • Introduction • Shearing • Blanking • Bending • Deep Drawing • Stamping Dies • Progressive Dies • Transfer Dies • Spinning

  3. Sheet Metal Working Products: automotive fenders washers stamped parts channels

  4. Examples of Stamped Parts

  5. Examples of Stamped Parts

  6. Examples of Stamped Parts This part was made from several stamped parts plus a nut, which were stamped again to seal them together

  7. Examples of Stamped Parts This part was made from a sheet that was stamped, bent, and welded into a tube, plus a separate stamped end piece

  8. Examples of Stamped Parts

  9. Shearing A sheet-metal cutting operation along a straight line between two cutting edges

  10. Shearing of Metal Between Cutting Edges

  11. Shearing of Metal Between Cutting Edges 1/3 of material is cut and 2/3 of material fractures

  12. Blanking Involves cutting the sheet metal along a closed outline

  13. Piercing and Blanking Shearing operations in which the shear blades are closed, curved lines along the edges of the punch and die In blanking, the piece punched out is the workpiece; in piercing, the remaining strip is the workpiece

  14. Punch and Die

  15. Bending

  16. Bending

  17. Bending Springback

  18. Deep Drawing A sheet metal forming operation used to make hollow-shaped parts

  19. Deep Drawing

  20. Redrawing Additional drawing steps (redrawing) may be required if the shape change of the material is too severe

  21. Example of a Drawn Part

  22. Example of a Deep Drawing Press

  23. Stamping Die

  24. Stamping Die

  25. Progressive Die Performs multiple operations at different stations with every press stroke

  26. Progressive Die

  27. Example of Progressively Stamped Parts This sheet has been stamped by a progressive die, showing the series of operations from right to left

  28. Progressive Die

  29. Progressive Die

  30. Progressive Die

  31. Progressive Die

  32. Progressive Die

  33. Progressive Die

  34. Examples of Stamping Machines

  35. Progressive Diein Stamping Press

  36. Progressive Die

  37. Material Coils

  38. Material Feed

  39. Material Feed

  40. Transfer Line

  41. Transfer Line

  42. Transfer Line

  43. Transfer Line

  44. Transfer Press

  45. Transfer Press

  46. Transfer Die

  47. Spinning Uses a spinning mandrel and a roller to form sheet metal into a radially symmetrical part

  48. Spinning Courtesy Koch Metal Spinning

  49. Tube Spinning Uses a spinning mandrel and a roller to reduce the wall thickness and increase the length of a tube

  50. Summary Blanking, bending, and deep drawing are capable of producing an immense variety of thin metal parts Progressive dies can produce parts at high production rates by performing multiple operations simultaneously

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