Surface treatment and structural design for machining of mechanical parts
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2024-01-24
There are four kinds of surface treatment for mechanical parts processing as follows:
1, cationic oxidation:
The oxide film containing metal cations coated on the surface of the workpiece, oxidised under appropriate conditions into a coloured metal layer of a method. Metal cation oxidation process has electrolytic oxidation, chemical oxidation and plasma oxidation method.
2, electroplating:
With chemical or electrolytic methods, in the metal or alloy surface plated with a layer of metal film process. Electroplating is widely used in hardware processing, large amount of surface treatment technology. At present, plating products have been developed to more than thirty varieties, and many varieties have reached the global level, such as: nickel plating, plating, copper plating, gold plating and so on.
3, chemical polishing:
Under the action of abrasives, chemical solvents, etc., the surface of the workpiece undergoes chemical or electrochemical changes, so as to achieve the purpose of a process method.
4, sandblasting:
Mechanical methods to make the surface of the workpiece to produce fine sand-like roughness to enhance its surface friction characteristics of a process method.
In the process of mechanical parts processing product structure design, need to pay attention to the following aspects:
1, the weight of the parts:
In the mechanical parts processing processing product design process, need to analyse and optimize the mechanical parts according to the specific situation, try to reduce the weight of mechanical parts.
2, the material selection of mechanical parts:
In the design of product structure, it is necessary to select appropriate materials according to the function and cost requirements of the product.
The characteristics of mechanical parts processing:
1, quality stability:
As the material of mechanical parts is often a variety of metals, so there will be large deformation in the processing, so it is difficult to determine the quality of hardware and mechanical parts after the completion of the manufacturing process.
2, processability:
Because mechanical parts processing is composed of many small mechanical parts, so it can be easily replaced by other mechanical parts.
3, material diversity:
The material of mechanical parts processing can be iron, copper, aluminium and other metal materials.
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