The following are four natural paragraphs of answers on how to control the dimensional accuracy of Hardware stamping parts and reduce dimensional deviation:
1. Mold accuracy control
The mold is one of the key factors that determine the dimensional accuracy of Hardware stamping parts. In the mold design stage, advanced computer-aided design software should be used to accurately calculate the size of the stamping parts and the structural parameters of the mold. Ensure that the cavity size of the mold is highly consistent with the design size of the stamping parts, and consider the shrinkage rate, springback and other factors of the material for reasonable compensation. During the manufacturing process, high-quality mold materials, such as alloy steel, are selected, and precision processing equipment, such as CNC machining centers, are used to ensure the processing accuracy of the mold. For example, high-precision milling and grinding are performed on the key parts of the mold to control the dimensional tolerance within a very small range. Strict mold quality inspection is also indispensable. The mold is inspected by equipment such as a three-coordinate measuring instrument to ensure that it meets the design requirements and lays the foundation for the dimensional accuracy of the stamping parts.
2. Process parameter optimization
The stamping process parameters have an important influence on the dimensional accuracy of Hardware stamping parts. Reasonable control of stamping pressure is one of the keys. Excessive pressure may cause excessive deformation of the material and dimensional deviation; too little pressure may cause insufficient forming of the material. Through experiments and experience accumulation, the optimal pressure range suitable for different stamping parts is determined. The stamping speed also needs to be adjusted appropriately. Too fast speed may prevent the material from fully deforming in time, affecting dimensional accuracy; too slow speed will reduce production efficiency. In addition, attention should be paid to the adjustment of the die gap. Too large a gap can easily cause burrs on the stamping parts and affect dimensional accuracy; too small a gap may increase die wear. According to different materials and stamping parts requirements, the die gap is accurately adjusted to ensure a balance between dimensional accuracy and production efficiency.
3. Material quality control
The quality and stability of the material are directly related to the dimensional accuracy of the stamping parts. It is very important to choose the right sheet material, which should be selected according to the use requirements and dimensional accuracy requirements of the stamping parts. For example, for stamping parts with high dimensional accuracy requirements, high-quality sheets with uniform material and small thickness tolerance are selected. Before the materials are put into storage, strict inspections are carried out, including dimensional measurement, hardness testing, etc., to eliminate unqualified materials. During the production process, the materials are properly stored to prevent the materials from being affected by moisture, corrosion, etc., which may cause performance changes. At the same time, manage the batches of materials to ensure the performance consistency of the same batch of materials and reduce the dimensional deviation caused by material differences.
4. Quality inspection and feedback
Establishing a sound quality inspection system is an important guarantee for controlling the dimensional accuracy of Hardware stamping parts. Use precision measuring tools such as calipers, micrometers, and three-coordinate measuring machines to comprehensively inspect the key dimensions of stamping parts. Establish strict quality standards to ensure that the dimensional deviation is within the allowable range. Once the dimensional deviation is found to exceed the standard, the cause should be analyzed in time. It may be mold wear, process parameter changes, or material problems. Take corresponding adjustment measures according to the cause, such as repairing the mold, adjusting process parameters, or replacing materials. At the same time, the quality inspection results are promptly fed back to the production link so as to continuously improve the production process and continuously improve the dimensional accuracy of Hardware stamping parts.
