| 摘要 |
PURPOSE:To make it unnecessary to repeat two or more dress cycles by successively performing a process dressing a grindstone along the peripheral grinding section multiple times continuously and a process dressing it along the side grinding section one or more times. CONSTITUTION:If the ratio between the peripheral grinding section 5a of a grindstone 5 and the side grinding section 5b for the depth of cut of a diamond dresser is set to 1:0.29, for example, the side grinding section 5b becomes about 0.01 mm when the peripheral grinding section 5a is normally out by about 0.03 mm. Therefore, the diamond dresser 4 directly cuts the peripheral grinding section 5a from the start position and performs reciprocating dressing by utilizing the input data of a programmable multi-stage dress or the like then performs the dressing of the side grinding section 5b by about 0.02 mm. Accordingly, the dress time is not extended, productivity is improved, an increase of the dressing speed and the depth of cut is not required, and the surface roughness of a work is improved.
|
