www
The process and principles of metal surface finish:
The purpose of metal surface finish is to further remove the fine defects on the surface of the metal product so that the surface finish of the product can be further improved to prepare for the surface decoration of the product. And metal surface finish can be done manually or on a finishing machine. The style of the finishing machine is similar to that of the grinder machine, and the finishing machine is equipped with finishing wheels. When the finishing wheels rotate at a high speed, the high temperature generated by the friction between the surface of the product will improve the plasticity of the surface, and further produce plastic deformation under the action of the finishing force. As a result, the convex part of the metals will be pressed down and filled into the concave part, which will eventually change the surface roughness. Meanwhile, since the chemical composition of the finishing paste can act on the surrounding medium during finishing, the finishing effect and the surface quality of the products will also be improved.
In general, metal surface finish is a process in which the oxide film on the metal surface is continuously produced and then continuously worn away. Since there is an oxide film on most metal surfaces, usually, the old oxide film will be first removed during finishing, and then a new oxide film will be produced with a thickness of about 0. 014 pm.Then this new oxide film will be removed again. The foregoing processes will be repeated many times until a bright surface finally appears and the required surface brightness is achieved.
Metal surface finish can also be divided into three levels: rough finish, medium finish and fine finish. Rough finish is to use hard wheels to further reduce the roughness of the surface that has already been reduced the surface roughness once. Medium finish is to use hard finishing wheels that are softer than the finishing wheels of rough finish to further process the surface that has been roughly finished before. In other words, the medium finish can remove the scratches left by the rough finish and produce a medium-bright surface. Lastly, fine finish is the final process of finish, which will typically use soft finishing wheels to finish the products so that the level of mirror brightness can be obtained.
The Cold Camber Casting Process in Die CastingDecember 29, 2020Die casting, also known as high pressure casting, is a near-net-shaped forming technology that has been widely used in the automobile, aerospace, and electronics industries in recent years. In the pro...view
What Are the Requirements for Material in Die Cast Tooling Processing?May 11, 2021I. The quality of the die casting tooling material is related to the quality of the die casting tooling There will be a variety of quality problems if the material used by the die cast tooling is of p...viewTwo Key Aspects in Zinc Die Casting ProcessDecember 7, 2020Zinc die casting processing is a process that requires high professional knowledge. Although the original complicated process is simplified with the help of advanced die casting machines, the technica...view
What Are the Requirements for Material in Die Cast Tooling Processing?
Issued on May 24,2021
Solutions to Common Problems in Aluminum Die Casting Process
Issued on May 17,2021
Main Advantages of Aluminium Die Casting
Issued on May 10,2021
Call us on: 
Email Us: 
Chuangye Road NO.13 right, Shuitian Community, Shiyan Town, Baoan District, Shenzhen,China