Hard turning vs. grinding

Hard Turning refers to the process of single point cutting of hardened pieces within the 2 micron range with hardness between 58 and 70 HRC. Hard turning has proven to be worthy alternative to the more expensive and time consuming grinding.

Finish Hard Turning: Why it is the alternative to cylindrical grinding?

Greater accuracy

Finish hard turning allows you to machine parts in one set up giving greater accuracies especially on features such as concentricity, squareness and roundness.

More Flexibility

With a single standard tool and clamping set-up you can machine a wide variaty of products with different forms and sizes. This provides more flexibility in production environments and reduces changeovers.

Higher productivity

Finish hard turning can remove more material per machining operation than grinding.
This can make hard turning up to 3 to 4 times faster when compared to cylindrical grinding.

Cost saving

Multiple operations can be done in one set-up which eliminates the need for a multi-step grinding process that historically would involve two or three seperate operations.

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Hard turning compared to grinding

  1. Long set up times
  2. Multiple clamping operations
  3. Long cycle times
  4. Low chip volume
  5. Profiled grinding wheel
  6. Non-productive dressing operations required
  7. High investment costs
  8. Environmental unfriendly due to grinding sludge
  1. Short set up times
  2. Single clamping operation
  3. Cycle times up to 80% faster
  4. High chip volume possible
  5. Single point tool tip
  6. No dressing, effective cutting time
  7. Low investment costs
  8. Dry cutting, thus clean process

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