Surface roughness is a very important index in the field of machining parts. So you know how to choose the surface roughness when machining parts
? Next, we will share it with you.
Surface roughness is an important technical index to reflect the micro-geometric error of the surface of the parts. It is the main basis for the inspection of the surface quality of the parts, and the selection of the product is directly related to the quality, service life and production cost. There are three ways to select the surface roughness of machine parts, they are the algorithm, test method, and the analogy method. In the design of mechanical parts, the most common method is the analogy method. This method is simple, rapid and effective. The application of analogy requires to need sufficient reference materials. All the existing mechanical design manuals have provided comprehensive information. And the most commonly used surface roughness is the tolerance grade.
In general, the smaller the dimensional tolerance of mechanical parts, the smaller the surface roughness of the mechanical parts, but there is no fixed function relationship between them. For example, some machine, instrument handle, handwheel, and the modified surface of some mechanical parts on the sanitary equipment and food machinery, the requirements of their surface should be very smooth, that is, the surface roughness is very high, but its dimension tolerance is very low. In the processing of mechanical parts, in general, there is a certain corresponding relation between the tolerance level and the surface roughness value of the parts with the dimensional tolerance requirements.
The above is the choice of surface roughness when machining parts
, and I hope to help you.