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# Drful the technical difficulties and quality control of the processing of electrical stamping parts
In modern home appliance manufacturing, ** electrical stamping parts **, as the basic component, are widely used in the manufacturing process of equipment such as refrigerators, washing machines, air conditioners.The quality of stamping parts directly affects the performance and service life of the whole machine.However, stamping parts are not simple mechanical operations. There are many technical difficulties and control points behind it. How to ensure that the accuracy and intensity of the stamping parts have become a major challenge in the manufacturing process.This article will be the key difficulties in the processing of popular science electrical stamping parts and ** quality control ** methods, and use case analysis to help everyone better understand.
## Technical difficulty in processing
### 1. ** Control of the material rebound **
During the stamping process, the metal material will occur in ** plastic deformation after being stressed.However, once the external force is revoked, the material often has a rebound phenomenon, resulting in the shape of the workpiece unable to maintain the design.This phenomenon is particularly more obvious in the plate metal stamping parts.
** Solution: ** By optimizing mold design and material selection, reducing the rebound phenomenon.For example, when selecting high -strength steel, the rebound phenomenon will be reduced accordingly because it has better resistance to deformation.In addition, when designing molds, considering increasing local compensation areas can effectively alleviate the problem of rebound.
### 2. ** Package of Pouring Parts **
In the processing of electrical stamping parts, the accuracy often needs to meet the micron level **, which puts forward extremely high requirements for mold design and production equipment.For example, when making precision connectors, the slight deviation of the size may lead to poor contact or poor electrical performance.
** Solution: ** Introduce ** CNC machine tools ** and automated detection equipment to ensure that high -precision positioning and processing are achieved during stamping.Through ** online detection ** and ** automatic compensation technology **, the deviation of the deviation in time to ensure the accuracy of the product size.
### 3. ** Cracking and strain of stamping parts **
During the stamping process, the material may cause cracking or surface strain due to excessive stretching, which will directly affect the strength and appearance quality of the punching parts. Especially in complex workpieces, stress concentration will cause cracking to be unavoidable.
** Solution: ** Preferred materials with good plasticity, such as aluminum alloy, galvanized steel plate, etc.In addition, the reasonable application of ** lubrication technology ** can effectively reduce friction between materials and molds, and prevent surface strain and cracks.
## Key points for quality control
### 1. ** mold quality control **
Mold is one of the core factors that determine the quality of stamping parts.The wear or design of the mold will cause the shape, size deviation and surface defects of stamping parts.
** Control measures: ** regular inspections and maintenance of molds to ensure that their working surface is smooth and peaceful.In addition, through ** mold flow analysis ** software simulation stamping process, optimize mold design, to avoid potential quality problems.
### 2. ** Material Quality Control **
The quality of the raw materials of stamping parts directly affects the performance of the final product.The impurities, surface defects in the materials can cause problems during processing.
** Control measures: ** In the procurement of raw materials, the inspection standards are strictly implemented to ensure that the chemical composition and mechanical properties of the material meet the requirements.For key components, choose materials with ** corrosion resistance ** and high -strength **.
### 3. ** Control in the production process **
In the process of mass production, the quality of stamping parts is affected by various factors, including the working status of the pressure machine, the wear of the mold, and the production environment.
** Control measures: ** uses ** automated production line ** to ensure the consistency of parameters in the production process.Application ** SPC (statistical process control) ** technology to monitor key parameters in the production process in real time. Once abnormalities are found, measures can be taken immediately to prevent unqualified products from flowing into the next process.
## Case Analysis: Quality Control of Pouring Parts of a refrigerator production line
On the production line of a well -known refrigerator manufacturing company, stamping parts are mainly used in the connection between doors and boxes.In the early production stage, the size deviation of the stamping parts frequently caused the box door to be closely closed.After analysis, it was found that there were defects in the design of the mold, and the control of the pressure machine during the production process was not accurate.
By optimizing the design of the mold, the introduction of ** CNC machine tools ** and ** online detection equipment **, combined with real -time monitoring production parameters, finally solved this problem.The size accuracy of stamping parts after mass production has been greatly improved, and the unqualified rate has decreased ** 30%**.
## conclusion
The processing of electrical punching parts involves the complex linkage of materials, molds, equipment and technology. Any small technical error may affect the quality of the final product.Through in -depth understanding and breakthrough technical difficulties in processing, scientific ** quality control ** means can greatly improve the quality level of stamping parts, thereby ensuring the performance and life of household appliances.I hope this article can provide you with some useful references and inspiration.