Technical Articles for Metal Parts

5. Why are there white strips on the surface of the workpiece after the electropolishing process? Analysis of causes: Relative density of the solution is too high and the liquid is too thick. The relative density is greater than 1.82. Solutions: Stir the solution more. If the relative density of the solution is too high,...

Features of the electropolishing process Electropolishing processes have high efficiency and the metal part which is processed by the electropolishing process has good quality. High gloss can be obtained by the electropolishing process within a few minutes. Pressure regulators, rectifiers, electrolytic tanks and other...

According to statistics, 60 to 70 percent of steel are plates among the world's steel, and most of plates are processed by stamping. Therefore, stamping has inherent advantages. Machining has low processing efficiency, and it is difficult to process parts with complex structures. However, machining is widely used for...

Electropolishing processes use polished workpieces as anodes and insoluble metals as cathodes, and anodes and cathodes are immersed in electrolytic tanks at the same time; selective anodic dissolution is generated by ionization reactions of direct currents so as to achieve the effects of removing tiny burrs on surfaces...

6. Brushed Metal Brushed metal is a kind of surface treatment that grinds surfaces of workpieces and forms patterns of very fine lines on workpieces’ surfaces, and brushed metal can make metal parts have decorative effects. Brushed metal can be classified into straight line brushed metal, disorderly line brushed...

3. Micro-arc oxidation (MAO) Micro-arc oxidation is a process that applies high voltage to electrolyte solutions, usually alkalescent solutions, to form the ceramic surface film, which is the result of synergistic effect of physical discharge and electrochemical oxidation.    Advantages 1. Micro-arc oxidation...

Surface treatment is the surface protection technology which changes the surface of the matrix material’s mechanical, physical and chemical properties so as to improve the product’s property, such as corrosion resistance and wear resistance in the early days. The traditional surface treatment methods include...

Stamping(also known as pressing) is the process of forming metal or nonmetal sheets into different shapes through stamping dies with the pressure of the presses.   The market of the stamping metal part is not very perfect and complete. But the market of small-size stamping parts in some areas of southern China is...

What are the factors that affecting the springback of metal stamping parts for autos? The springback of metal stamping parts is a difficult problem for auto stamping parts, and there is no perfect way to resolve the problem at present. So we need to further study the springback problem of stamping parts. What exactly are...