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Form Knurling or Cut Knurling, Which is Best?

11/06/2015
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Guide to Quick Cut knurling

Cut knurling machines the workpiece producing chips.  It is the faster of the 2 methods and the kindest on your lathe.

 

  • Can be used for knurling thin materials without deformation
  • Faster than form knurling
  • Suitable for all materials, even plastic
  • Powder metal wheels with ground teeth (many suppliers use HSS wheels with milled teeth)
  • Cutting process protects the expensive lathe
  • Knurling to workpiece flange possible to a limited extent only
  • More expensive than form knurling
  • No or minimal changes to the external workpiece diameter


Guide to Quick Form knurling

Form knurling cold forms the workpiece using pressure.  It is the slower of the 2 methods and the cheapest, however it can be damaging to the lathe if done often.

 

  • Can be used for knurling up to a shoulder
  • Knurling is possible at any position of the workpiece
  • Lower cost than cut knurling
  • Not recommended for thin materials
  • It can effect the external workpiece diameter
  • Powder metal wheels with ground teeth (many suppliers use HSS wheels with milled teeth)
  • Not ideal for visible knurls
Which Is For You?

Whilst form knurling is the much cheaper of the 2 methods, it is most probably best used for short run or one off jobs.

For longer production runs or for people who do knurling regularly, it is strongly advised to invest in CUT knurling tools to produce better quality knurls and look after your lathe.
 
For more information please contact our technical team today or view the catalogue by clicking the link at the top of the email.