The evaluation methods for the appearance quality of stamping parts mainly include visual inspection and instrument inspection. Visual inspection is mainly to observe the surface state of stamping parts with human eyes to check whether there are deformation, cracks, scratches, oxidation and other problems. The instrument inspection is to use professional instruments and equipment to measure the size, shape, surface roughness and other parameters of the stamping parts, and evaluate its appearance quality.
In terms of visual inspection, it is mainly evaluated from the aspects of the integrity, flatness, surface quality, and dimensional accuracy of the stamping parts. Integrity evaluation refers to whether the overall shape of the stamping part is correct, whether there are problems such as deformation and distortion; flatness evaluation refers to whether the surface of the stamping part is flat, whether there are waves, protrusions, etc.; surface quality evaluation refers to whether the surface of the stamping part is Smooth, no scratches, no oxidation and other problems; Dimensional accuracy evaluation refers to whether the size of the stamping part meets the requirements, and whether there are problems of being too large or too small.
In terms of instrument testing, it is mainly to use three-coordinate measuring instruments, image measuring instruments and other equipment to measure stamping parts. By measuring the size, shape, surface roughness and other parameters of stamping parts, the appearance quality is evaluated. Among them, the three-dimensional coordinate measuring instrument can measure the three-dimensional shape of stamping parts, which is especially important for complex stamping parts; the image measuring instrument can quickly and accurately measure the size, shape, surface roughness and other parameters of stamping parts through image processing technology.
To sum up, there are various evaluation methods for the appearance quality of stamping parts, which can be evaluated by visual inspection and instrument inspection. For enterprises, choosing an appropriate evaluation method and establishing a sound quality inspection system are of great significance for improving product quality and market competitiveness.