Title:
GRINDING METHOD
Document Type and Number:
Japanese Patent JP2016097476
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To form a desired metal surface on the ground surface of a plate-like workpiece without lowering the grinding force of a grindstone.SOLUTION: The grinding method includes the rough grinding step of grinding a metal layer 3 by a grindstone 26, and the grindstone separating step of separating the grindstone 26 from the metal layer 3 while maintaining the continuous rotation of a chuck table 13 and a grinding wheel 25 to stand by for a predetermined period of time after the rough grinding step. Thus, ground chips entered into the ground surface of the grindstone 26 or the metal layer 3 can be removed, and clogging is prevented to avoid lowering of the grinding force of the grindstone 26. Then, when executing a finish grinding step, finish grinding is carried out by a grinding amount set within the range of the radius or more of an iron ball 4 on the upper surface 1a side of a plate-like workpiece 1 to a diameter or less by the grindstone 26. Thus, without scraping out the iron ball 4 of the metal layer 3 by the abrasive grains of the grindstone 26, a desired metal surface can be formed on the upper surface 1c of the plate-like workpiece 1 after the finish grinding, and magnetic force characteristics on the upper surface 1c can be improved.SELECTED DRAWING: Figure 5
Inventors:
WOO JUNSOO
SUZUKI KEISUKE
SUZUKI KEISUKE
Application Number:
JP2014236343A
Publication Date:
May 30, 2016
Filing Date:
November 21, 2014
Export Citation:
Assignee:
DISCO ABRASIVE SYSTEMS LTD
International Classes:
B24B7/04; B24B1/00
Domestic Patent References:
| JP2010149222A | 2010-07-08 | |||
| JPS6161753A | 1986-03-29 |
Attorney, Agent or Firm:
Patent Business Corporation Tokyo Alpa Patent Office
Kyoko Kawamura
Isao Sasaki
Ken Kubo
Kyoko Kawamura
Isao Sasaki
Ken Kubo