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While stamping is highly efficient and precise, it is not without limitations. Here are its main drawbacks:

1. high mold costs and long lead times. A single precision mold can cost hundreds of thousands of yuan, with a development cycle of several weeks to months. Design changes are difficult and expensive to implement, offering poor flexibility.

2. not suitable for small-batch production. Stamping's cost-effectiveness relies on spreading mold costs over large volumes. For orders of just a few hundred pieces, per-unit costs are significantly higher than CNC machining or 3D printing.

3. limitations in size and shape. Stamping typically handles sheet thicknesses of 0.1–6.0mm; above 10mm, difficulty increases sharply. Complex geometries such as deep cavities or negative angles are difficult to achieve. Springback also adds process control challenges.

4. limited material selection. Materials must have good ductility. High-hardness, high-strength, or brittle materials are prone to cracking and unsuitable for stamping.

5. surface quality limitations. Sheared edges often have burrs, tearing, and rough zones, making surface finish inferior to machined parts. High-end applications may require secondary finishing.

6. high equipment and maintenance costs. Presses and automation systems require significant upfront investment, and molds need regular maintenance and refurbishment, adding ongoing costs.

7. noise and environmental concerns. Equipment noise often exceeds 85 dB, requiring protective measures. Lubricants and chemicals also pose environmental compliance challenges.

In summary, stamping is the preferred process for "high-volume, thin-sheet, high-precision" production. However, for small batches, thick materials, or highly complex shapes, careful evaluation is needed to determine the most suitable manufacturing approach.

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