1. Design review link
In the initial stage of automotive vacuum box die-casting mold custom processing, design review is an important quality control link. The design team will conduct a comprehensive evaluation of the overall design of the mold based on the product requirements of the automotive vacuum box, such as shape, dimensional accuracy, mechanical properties, etc. First, check whether the mold structure design is reasonable, including whether the selection of the parting surface is conducive to demolding and ensuring the appearance quality of the product, and whether the design of the gate system can ensure that the metal liquid fills the cavity evenly and stably. For the integrated design of the vacuum system, it is necessary to evaluate whether it can effectively form and maintain the required vacuum environment during the die-casting process. In addition, the cooling system design of the mold will be reviewed to ensure uniform cooling and avoid problems such as product deformation caused by uneven cooling. Through the design review with the participation of multiple parties, the quality of the mold design is controlled from the source to avoid possible design defects.
2. Raw material inspection link
The quality of the raw materials directly affects the final quality of the mold. After purchasing the raw materials such as steel required for mold manufacturing, strict inspection will be carried out. The inspection content includes chemical composition analysis of the material to ensure that it meets the material standards required by the design. For example, for core materials, specific hardness, thermal fatigue resistance and other performance indicators are required, and chemical composition analysis is used to verify whether the material has the basis for these potential properties. At the same time, the physical properties of the raw materials are tested, such as hardness testing and flaw detection. Hardness testing can determine whether the material reaches the expected hardness range, and flaw detection can detect whether there are defects such as cracks inside the material. Only raw materials that have passed the inspection can be put into the processing and manufacturing of the mold.
3. Precision control during the processing process
In the processing of the mold, precision control is crucial. Use advanced processing equipment, such as CNC machining centers, EDM machines, etc. These equipment themselves have high processing accuracy, but strict process control is still required. When processing the mold cavity, the dimensional accuracy of the cavity is ensured through precise programming and tool path planning. During the processing process, regularly use measuring tools (such as three-coordinate measuring machines) to measure the processing dimensions, compare them with the design dimensions, and adjust the processing parameters in time to correct the deviation. For key dimensions and shapes in the mold, tolerance control is more stringent. For example, for mold parts that directly affect the wall thickness of the automotive vacuum box, its processing tolerance must be within a very small range to meet the wall thickness uniformity requirements of the product.
4. Assembly and debugging links
The assembly and debugging links after mold processing are also the key to quality control. During the assembly process, ensure that each component is accurately assembled according to the design requirements, such as the matching accuracy of the core and the cavity, which needs to meet the designed clearance requirements to ensure that the metal liquid will not leak during die casting. For the assembly of the vacuum system, check the sealing of the pipeline connection to avoid vacuum leakage. After the assembly is completed, debug. During the mold trial, observe whether the mold opening and closing movements are smooth, whether the vacuum system works normally, and whether the die-cast automotive vacuum box products meet the quality requirements, including appearance quality, dimensional accuracy, and whether there are defects such as pores inside. Adjust and optimize the mold according to the mold trial results until a qualified product is produced to ensure that the final quality of the mold meets the customization requirements.
