noun
Mechanical engineering term for the precision finishing process that uses abrasive stones to improve the geometry and surface finish of a bore or cylinder.
エンジンのシリンダー内壁を研ぎ上げ加工する。
The inner wall of the engine cylinder is honed.
研ぎ上げによって表面粗さが改善された。
The surface roughness was improved by honing.
研磨 is a broader term for polishing or grinding, while 研ぎ上げ specifically refers to the honing process used for precision finishing of bores.
ラッピング (lapping) is a similar finishing process but uses loose abrasive between two surfaces, whereas 研ぎ上げ uses bonded abrasive stones.
Compound of 研ぎ (togi, the continuative form of 研ぐ 'to sharpen, to polish') and 上げ (age, the continuative form of 上げる 'to finish, to complete'). Literally 'polishing up' or 'finishing by sharpening'.