How to measure the surface roughness of a workpiece with a two-dimensional measuring instrument?
How to measure the surface roughness of a workpiece with a two-dimensional measuring instrument? Post time: 2019-10-31 Source: http://www.microaccuracy.com/ The two-dimensional measuring instrument is mainly used for the two-dimensional plane inspection of the product or the two-dimensional projection inspection of the workpiece, so the roughness measurement on the surface of the workpiece It is usually applied to a two-dimensional measuring instrument. How to use a two-dimensional measuring instrument to measure the surface roughness of a workpiece? Due to the differences in the surface roughness of different workpieces, the measurement methods applied are also different. The two-dimensional measuring instrument generally selects the following methods for the measurement of the surface roughness of the workpiece: Comparative method: the two-dimensional measuring instrument will be The measured surface is directly compared with the surface roughness model, which is mostly used in the workshop to evaluate the workpiece with a larger surface roughness value. Light section method: The second element measuring instrument uses the light section principle to measure with a double-tube microscope. It is often used to measure Rz from 0.5 to 60 μm. Interferometry: The two-dimensional measuring instrument uses the principle of light wave interference to measure Rz and Ry values u200bu200bwith an interference microscope. Acupuncture method: The two-dimensional measuring instrument uses the stylus to directly scratch the surface to be measured to measure the surface roughness Ra. Impression method: The two-dimensional measuring instrument uses paraffin, low-melting alloy or other impression materials to imprint on the surface of the measured part, and place it under a microscope to indirectly measure the roughness of the measured surface. It is suitable for bulky parts and inner surfaces. . For the measurement of the same parameter of the two-dimensional measuring instrument, although different methods can be used to obtain the results, there will be differences in efficiency and accuracy. Therefore, the appropriate measurement method is generally selected according to the surface roughness of the workpiece. At present, Miaoji Technology A variety of high-quality equipment such as two-dimensional measuring instruments and one-button measuring instruments can be provided!
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