The fully immersed 261 kWh energy storage system, the 8 MWh containerized energy storage solution, solid-state battery storage cabinets, and the lowest-ever price of 0.58 yuan/Wh for commercial and industrial energy storage—there were plenty of highlights at the exhibition. Experts noted that the event featured a curated selection of 30 representative energy storage products, offering a glimpse into the industry’s emerging trends and technological development pathways.

Sheet metal boasts properties such as being lightweight, highly compressive, electrically conductive (making it suitable for use in magnetic shielding materials), cost-effective, and capable of excellent large-scale fabrication. As a result, it has found widespread applications across industries like electronics, telecommunications, automotive, and medical equipment—for instance, in computer cases, mobile phones, MP3 players, and speakers, where sheet metal is an indispensable component.

I. Issues That May Arise in Sheet Metal Processing and Their Solutions

1. In many production and manufacturing fields, sheet metal processing operations are essential. These tasks involve a wide range of processes, such as cold stamping dies, raw material handling, and sheet metal bending and forming. Throughout the entire process, operators should pay close attention to ensuring that key parameters are accurate and that operational methods meet the required standards. Currently, workplaces place great emphasis on the quality of raw materials being processed. Therefore, it’s crucial to continuously focus on developing professional skills and techniques throughout this machining procedure—only then can we align with the evolving trends in the manufacturing industry. Below, we’ll provide a concise explanation of some common challenges encountered in this type of processing work.

2. When processing raw materials for sheet metal fabrication, while it’s important to minimize energy consumption as part of daily operations for each process—reducing the supply of raw materials won’t significantly harm cost recovery—over the long term and with substantial production volumes, prioritizing reduced material allocation and waste can lead to significant cost savings and substantial economic benefits for manufacturers.

3. During the sheet metal processing period, to ensure the goal of optimizing capital allocation, it is essential that staff strictly adhere to production and processing standards when carrying out their duties. Before each operation begins, a thorough review of the raw materials must be conducted—processing cannot proceed without proper approval. A significant amount of waste in many manufacturing and production processes stems from inadequate preparation of materials prior to machining. Therefore, staff should first clearly define the types of materials required for processing and carefully verify their specifications. By completing these essential preparatory steps, workers can avoid oversights during the production process, minimize scrap rates, and maintain high efficiency throughout the workflow. Additionally, employees should remain vigilant about these critical considerations whenever performing daily operations.

II. Issues That May Occur in Sheet Metal Stamped Parts and Their Solutions

1. Burr: During the entire process of punching or edge cutting, if burrs are not completely removed, they can remain at the edges—particularly when these burrs form on the lower side of the cut surface in thick steel plates. When the height and width of the burr are around 0.3 mm relative to the cut surface, the resulting copper powder may damage the grinding tools and cause unevenness.

2. The tube material, when broken, may cause wrinkling along the edges: The guiding rollers on the unwinding machine line can create wrinkles due to improper alignment, as the tube material is fed in unevenly.

3. Drag Marks: These are caused by the roller's dragging action, most commonly occurring when motion is abruptly stopped or accelerated.

4 Scratches: The primary cause of scratches on components is sharp scars on the grinding tools, which allow metallic debris to fall into the tool. To prevent scratches, it’s essential to grind down any scars on the tools and thoroughly remove all metallic particles.

4. Bumps and Dents: Abnormal protrusions or indentations appearing on the material's surface, caused by contaminants (such as metal shavings or dust) infiltrating the unwinding machine's threading system.

5. Bottom Cracking: The primary cause of cracks at the bottom of components is weak plastic deformation in the raw material or excessive clamping pressure during the edge-forming process of the die. To prevent this issue, consider replacing the material with one that exhibits better plasticity, or slightly relieve the pressure on the edge-forming strip.

6. Roller Marks: These are caused by dirt or debris adhering to the rollers or feed rollers (resulting in fixed, uneven patterns). Typically, the only solution is to remove the dirt and debris from the rollers on the steel plate.

7. Wrinkled Outer Walls: The primary cause of wrinkling on the outer walls of components is insufficient material thickness (often falling below even the minimum allowable thickness) or axial stress generated during the installation of the upper and lower dies, resulting in a larger gap on one side and a smaller gap on the other. To prevent this issue, promptly replace the material or readjust the die accordingly.

8. CNC machining technology is applied on CNC sheet metal lathes, effectively addressing several challenges inherent in sheet metal fabrication—such as the need for high precision, complex part geometries, and large production volumes. CNC machine tools for sheet metal processing include CNC shears, CNC fiber laser cutting machines, CNC bending machines, automated welding systems, and CNC flame cutting equipment. Their widespread use in manufacturing has significantly enhanced sheet metal processing capabilities, ensuring both superior quality and increased productivity while dramatically reducing labor intensity for workers.