Profile Accuracy Detection and Surface Precision Dressing Methods for Diamond Abrasive Disc
The profile accuracy detection and surface precision dressing of diamond abrasive discs are key issues in the field of diamond tool manufacturing.In order to achieve high-precision measurement of the profile error of the abrasive disc,an on-machine measurement method based on laser triangulation was proposed.The sub-micron accuracy of the surface error of the abrasive disc was effectively detected.The experimental results show that this method can be conveniently used to evaluate the dressing accuracy under different dressing parameters.The precision dressing technology of bronze-sintered diamond abrasive discs was studied by using the single-point diamond dressing method in the experiment.The effects of the dressing depth,spindle speed,spindle reciprocation frequency,and dressing pressure on the surface dressing accuracy of the abrasive disc were investigated,based on which the dressing parameters were optimized.The optimized parameters are:dressing depth 1 µm,spindle speed 3 000 r/min,reciprocating frequency 0.15 Hz and contact pressure 14.7 N.Abrasive discs with different dressing accuracies were used to grind wedge-shaped diamond micro-tools,respectively.The experimental results indicate that the proposed accuracy detection and surface precision dressing methods of abrasive discs are of significant application value improving the manufacturing accuracy of diamond tools.
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