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How to adjust the run out for cutters


Example pictures for adjusting run-out of

exchangeable Head endmills<一>


Example pictures for adjusting run-out of

Standard endmills<二>

 a. Steps to adjust the run out:
   1 : At first please reach the scale to the tip of the cutter, as the accurate point shown in the picture.
   2 : Secondly, loosen the cutter holder by hand in counter clockwise, then add up all the tolerances among
        each flute. It would be the run out to this cutter.

 b. The effect caused by run out to a
cutter may bring to process:
   Run out may affect not only tool-change times but the roughness of material being milled. Once the run out is
   raising, it may reduce the tool life and have cracks on it  while processing. On the other hand, the tool life is
   been extended and the surface of material being milled is neat when the run out is getting lower.

 c. The Tolerance for the run out measurement caused by cutter’s elongation:

Tool extension Run out
L=0~30 mm ±0.005 mm
L=30~100 mm ±0.01 mm
L=100~180 mm ±0.015 mm
 L=180~250 mm ±0.02 mm

 

 

 

 

Written by DHF Technology Center


 

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