What conditions must be met for high-quality precision parts processing

Precision parts processing technology and stamping dies should be closely combined with the actual situation of the factory's machinery, staff, etc., from the quality of parts, productivity, manufacturing costs, labor efficiency, environmental maintenance and manufacturing safety factors. Consider, determine and design a production technology scheme and mold design with sophisticated technology, economical rationality, safe and reliable application, so that the production of stamping parts can minimize the reduction of the production of stamping parts on the basis of ensuring that the technical standards mentioned in the design drawings are met. Stamping production technology costs to ensure production safety. Today, Dongguan YIFENG METAL Technology will introduce the necessary conditions for high-quality precision parts processing.

Performance requirements of precision stamping parts

(1) Standard of precision stamping parts

To meet stamping parts The precision standard of the stamping die must be designed and calculated to determine the production process volume, not only because it involves not only material characteristics, drawing height, drawing steps and other factors, but also drawing diameter, material thickness and other factors. and other conditions.

(2) Fine processing requirements of stamping parts

For the fine requirements of stamping parts, the number of processes depends on the complexity of its structural shape. Therefore, it must be determined according to the number of bending angles, The relative position and bending direction can only be determined after comprehensive consideration of factors such as relative position and bending direction.

(3) The aesthetic standard of stamping parts

After the stamping process meets the requirements of precision and fineness, the aesthetics of the workpiece becomes the new production process standard. When the section quality and specifications of stamped parts are high, it is possible to consider adding a trimming process after the stamping process, or directly choose precision stamping, so as to add value to the refined stamping parts.

The production and processing technology of two kinds of precision parts

(1) Parts drawing

Parts and stamping die design analysis based on parts Based on graphics, by analyzing the basic elements such as the shape features, specifications, precision standards, raw material dimensions and tensile strength of the parts, using the existing parts' stamping machine specifications, mold processing conditions, manufacturing batches and other basic elements to analyze the parts stamping process.

(2) Clarify the process planning

On the basis of the stamping process analysis, from the equipment occupancy, the difficulty level and life of die processing, the convenience of use and safety, etc. The standardization analysis of technical parameter calculation is carried out, and the characteristics and key points suitable for the existing production process and mold design are screened out. Appropriate plan.

(3) Determining the production process parameters

Product technical parameters refer to the data based on the formulation of the process plan, such as various forming coefficients (elongation coefficient, bulging coefficient, etc. ), the tensile specification of the part, and its blanking force and forming force, etc. There are two situations in the calculation process, one is that the process parameters can be calculated more accurately, such as the raw material application rate, cutting pressure center, workpiece area, etc. when the parts are laid out; the other is that the process parameters can only be calculated approximately, such as general Bending or deep drawing forming force, miscellaneous parts blank unfolding specifications, etc.

(4) Selection of punching machine

According to the characteristics of the punching process to be carried out by the punching machine and the force and energy characteristics of various punching machine tools, follow the deformation force, deformation work and high pressure required for forming. , width and height of the mold closing ratio and the height of the external specifications and other specific principles, in line with the company's current mechanical conditions, reasonable selection of mechanical models and tonnage.

Selection of stamping oil for precision parts processing

Die casting oil plays an important role in the die casting process, good cooling characteristics and extreme pressure The anti-wear performance is of great significance for prolonging the service life of the mold and improving the precision of the workpiece.

First, the selection of low carbon steel sheet stamping oil

When selecting stamping oil for carbon sheet, the first thing to pay attention to is the viscosity of the drawing oil. According to the difficulty factor of the production process and the degreasing standard, the optimum viscosity of the product is determined.

Second, the selection of galvanized steel stamping oil

Because of the chemical reaction with chlorine additives, so pay attention when choosing galvanized steel stamping oil, chlorine stamping oil will The problem of white rust occurs, and it should be degreased as soon as possible after stamping.

Three, the selection of stainless steel stamping oil

Stainless steel is easy to form hard, and it is stipulated to use the oil film, which has high strength and good anti-sintering performance. Generally, stamping oil containing sulfur and chlorine mixed additives is used to avoid problems such as burrs and cracks in the workpiece, and to ensure extreme pressure performance.

The precision of finishing is very high, so when choosing a manufacturer of precision parts, we must look at the comprehensive strength of the enterprise, including the overall strength of production and processing equipment and operators Technical level, so as to ensure that the workpiece meets the specified requirements.

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