| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a metal-bonded grinding wheel having a grinding force and grinding ratio equal to or greater than a traditional resin-bonded grinding wheel, and achieving a finished surface accuracy equal to or greater than a resin-bonded grinding wheel. <P>SOLUTION: The metal-bonded grinding wheel contains abrasive grains and first metal powder. The ratio (X/Y) of an average surface area X pre metal particle constituting the first metal powder and a surface area Y of a true sphere having the same diameter as the average particle size of the metal powder is 10.0-40.0. <P>COPYRIGHT: (C)2013,JPO&INPIT |
