Length, machining method, crease direction symbol, and surface waviness on the surface indication symbol as shown below. This surface roughness indication method pictorially displays information such as the surface roughness value, cutoff value, sampling When pictorially representing the surface texture, the symbol that indicates the target surface is expressed with two lines havingĭifferent lengths with an angle of 60° between them. Symbols indicating target surface and the position of these symbols This is the direction of clear creases that are formed during removal machining. This refers to the removal of surface layers from parts by way of machining or similar methods.
The roughness, necessity of removal machining, crease direction, and waviness of the surface of machine parts and structural parts. This is a general term for factors such as
This section will explain how to write these symbols to indicate surface textures. The pictorial representation using these symbols is defined in ISO 1302:2002. Symbols that indicate the surface texture of machined and structural parts are used in industrial diagrams. Wide-area 3D profile-measuring instrument.Side-by-side Comparison of Roughness Measuring Instruments.Non-contact Surface Roughness/Profile Measuring Instruments.Contact-type Surface Roughness/Profile Measuring Instruments.Instruments used for roughness measurements Surface Roughness Standards: ISO 25178 vs.Measuring Procedure for Stylus-type Surface Roughness Instruments.Understanding Surface Roughness Symbols.Introduction to "Roughness" produced by KEYENCE