GRINDING WHEEL

PROBLEM TO BE SOLVED: To provide a grinding wheel easily maintaining grinding performance.SOLUTION: A grinding wheel (2) used for grinding work, is equipped with a disc-shaped base (4) which has a fixed end surface (4a) contacted with a mount of a grinder, and a free end surface (4b) on the opposite side to the fixed end surface; and a plurality of grinding wheel chips (6) annularly arranged on the free end surface of the base. The grinding wheel chip is formed in a block-shape having a surface (6b) on which two or more kinds of platy grinding wheel members (8 and 10) including abrasive grains and binders are superimposed and the two or more kinds of the grinding wheel members are exposed, and the surface of the grinding wheel chip works as a grinding machining surface contacted with the work.SELECTED DRAWING: Figure 2 【課題】研削性能の維持が容易な研削ホイールを提供する。【解決手段】被加工物の研削に使用される研削ホイール（２）であって、研削装置のマウントに接する固定端面（４ａ）及び固定端面とは反対側の自由端面（４ｂ）を有する円盤状の基台（４）と、基台の自由端面に環状に配列された複数の砥石チップ（６）と、を備え、砥石チップは、砥粒及び結合材を含む２種類以上の板状の砥石部材（８，１０）を重ねて２種類以上の砥石部材が表出する面（６ｂ）を持つブロック状に形成され、砥石チップの該面が、被加工物に接する研削加工面となる。【選択図】図２