Polishing Steps Of Stainless Steel Products
1. Carry out the visual inspection on the workpiece transferred to the polishing process in the previous stage, such as whether the weld seam has missing welding, welding penetration, uneven depth of solder joints, too far away from the seam, local depression, uneven butt joint, and deep scratches Marks, bruises, severe deformation and other defects that cannot be remedied in this process, if there are above defects, it should be returned to the previous process for repair. If there are no above-mentioned defects, enter this polishing process.
2. For coarse grinding, use a 600# abrasive belt to grind the workpiece back and forth on three sides. The goal of this process is to remove the solder joints left by the welding of the workpiece and the bruises that occurred in the previous process to achieve the fillet of the weld. Preliminary molding, basically with no large scratches or bruises on the horizontal and vertical surfaces. After this step, the surface roughness of the workpiece should be able to reach R0.8mm. Pay attention to the inclination angle of the belt machine and control the pressure of the belt machine on the workpiece during the polishing process. Generally speaking, it is more moderate to be in a straight line with the thrown surface!
3. Semi-fine grinding, use 800# abrasive belt to grind the three sides of the workpiece according to the previous method of grinding the workpiece back and forth, mainly to correct the joints that appeared in the previous process and to further finely grind the impressions produced after rough grinding, The marks left by the previous process should be repeatedly ground to achieve no scratches on the surface of the workpiece and brighten. The surface roughness of this process should be able to reach R0.4mm. (Be careful not to create new scratches and bruises in this process because such defects cannot be repaired in subsequent processes.)
4. For fine grinding, the abrasive belt of 1000# is mainly used to correct and grind the fine lines that appeared in the previous process, and the grinding method is the same as above. The goal of this process is that the seam between the grinding part and the unground part of the workpiece will disappear, and the surface of the workpiece will be brighter. The workpiece, after grinding through this process, should be close to the mirror surface effect, and the surface roughness of the workpiece should be able to reach R0. 1mm
