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五表面光潔度的評定方法和分類(上) 在近代的机器製造工業中,表面光洁度(微观不平度)已成为机械零件的重要質量指标之一。隨着这門科学研究工作的發展,已設計了不少各种類型的測量儀器。虽然它們的測定标準和技術特征等各有不同,但仍可概括地分为二大類:(1)絕对評定法(或称定量的評定方法);(2)比較評定法(或称定性的評定方法)。 (1)絕对評定方法和儀器在最近十多年來,由於在机器製造業和仪器製造工業对零件表面質量上的迫切需要以及工藝方法上的不断改進,要求光潔度对‘量值’上的評定,
Five surface finish assessment methods and classification (1) In modern machinery manufacturing industry, surface finish (microscopic roughness) has become one of the important quality indicators of mechanical parts. With the development of this scientific research work, many kinds of measuring instruments have been designed. Although their measurement standards and technical characteristics are different, they can be broadly divided into two categories: (1) absolute assessment (or quantitative assessment); (2) comparative assessment (or qualitative Assessment method). (1) Absolute evaluation method and instrument In the recent ten years, due to the urgent need for the surface quality of the parts in the machine manufacturing and instrument manufacturing industries and the continual improvement in the technological methods, the requirement of finish on the “value” assessment,