| 摘要 |
PURPOSE:To make it possible to effectively hone the inside of a cast iron sleeve provided in an aluminum alloy cylinder block without any strain by using a diamond grindstone for a honing stone and controlling its surface pressure for honing in accordance with a fixed value. CONSTITUTION:The inside of a cast iron sleeve 23 held in an aluminum alloy cylinder block 22 is honed with long.sized diamond grindstones 16. In this case, the width of the grindstone 16 is set within the range from 2.5mm-3.0mm, and the surface pressure under which the rotating grindstones 16 are pressed against the inside of the sleeve 23 is set within the range from 4.6kg/cm<2>-5.7kg/ cm<2>. Consequently the above inside can be honed with high precision and no strain. |
