De formation process

Replies

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  zaveri

  Knurling is a process of making an array of diamond-shaped indents on a smooth surface, to improve gripping. on cylindrical surfaces this can be done using a lathe machine fixed with a knurling tool.
  
  embossing is a process of creating raisied features on a smooth surfaces, such as in coins.
  
  but coining is a mettalurgical process. it is a process of hardening the material by applying high stress and thus reducing the grain size. the finer the grains, the more stronger a material is.
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  Praveenan nt

  Knurling is a process of making an array of diamond-shaped indents on a smooth surface, to improve gripping. on cylindrical surfaces this can be done using a lathe machine fixed with a knurling tool.
  Emobossing has same design on the both side of the sheet metal.
  This process can be made by means of matched male and female roller Die %28Manufacturing%29, or by passing sheet or a strip of metal between rolls of the desired pattern.
  Coining operation produces different shape or design on both side of the sheet metal.
  Example : coin where both side have different design.