SCHUNK FDB 1040, Assembly And Operating Manual

Page: 33 / 68

Troubleshooting
02.01|FDB 150, 300, 340, 660, 900, 1040 |en 33
Troubleshooting
Deburring process development is an iterative, learning task. The fol-
lowing table is presented to assist in solving deburring problems.
Symptom Cause Resolution
Burr Wear Hard work material Use better grade burr material add coating
(TiAlN)
Too heavy a cut Decrease width of cut/make multiple passes
Feed rate is too slow Increase feed rate
Burr Breakage Too heavy a cut Decrease width of cut/make multiple passes
Deflection at corner Climb mill/do not begin path at sharp corner
Impacting part Decrease feed rate at contact/ enter part
at an angle
Unequal compliance Pivot bearing worn Replace pivot bearing,
(

8.3.3, Page 51)
Compliance preload
screw not set properly
(

8.3.3, Page 51) for proper adjustment.
Worn ring cylinder Replace ring cylinder,
(

8.3.4, Page 59)
Poor finish on
work piece
Feed rate is too fast Reduce feed rate
Burr is worn Inspect burr if worn, replace.
(

8.3,
Page 38)
Motor bearings are
worn
Inspect spindle shaft, if shaft feels loose or
has play, replace.
(

8.3.2, Page 39) .
Burr Chattering
during cut
Feed rate is too fast Reduce feed rate
Lack of rigidity Increase radial compliance pressure
Too heavy a cut Decrease width of cut/make multiple passes
Improper Burr selection Choose burr designed for work material
Burr is worn
Inspect burr if worn, replace
(

8.3, Page 38) .
Motor bearings are
worn
Inspect spindle shaft, if shaft feels loose or
has play, replace.
(

8.3.3, Page 51) .
Secondary Burrs
created on work
piece after cut
Incorrect feed rate Reduce feed rate
Too heavy a cut Decrease width of cut/make multiple passes
Improper Burr selection Choose burr designed for work material
Burr is worn
Inspect burr if worn, replace
(

8.3, Page 38) .
Motor bearings are worn Inspect spindle shaft, if shaft feels loose or
has play, replace.
(

8.3.3, Page 51) .
Chip Packing of Burr Too heavy a cut Decrease width of cut/make multiple passes
Not enough chip clear-
ance
Use a burr with less flutes
7