挤压珩磨是七十年代发展起来的一项表面光整加工技术。最初主要用于去除零件内部通道或隐蔽部分的毛刺,随后扩大应用到零件表面的抛光。经挤压珩磨后,表面粗糙度改善2～3级,表面粗糙度可降低到初始粗糙度的1/5～1/10,能达到的最佳表面粗糙度为 Ra0.063～0.032μm(⊿_(12)-⊿_(12))。挤压珩磨是利用一种含磨料的半流动状态的粘 Squeezing honing is a surface finishing technology developed in the seventies. Initially primarily used to remove burrs from the internal channels or hidden parts of the part, and subsequently to expand the finish applied to the surface of the part. After extrusion honing, the surface roughness is improved by 2 ~ 3, the surface roughness can be reduced to 1/5 ~ 1/10 of the initial roughness, the best surface roughness Ra0.063 ~ 0.032μm (⊿ _ (12) -⊿_ (12)). Extrusion honing is the use of a semi-fluid containing abrasive state of the sticky