GB/T 33217-2016 in English

1. Background and significance of standard formulation

Stamping parts play an important role in the manufacturing industry, and their quality directly affects product performance and safety. Burrs are common defects in the stamping process. If not controlled, they may lead to assembly difficulties, surface damage, and even functional failure.

The formulation of GB/T 33217-2016 standard aims to standardize the limit value and detection method of burr height of stamping parts, providing a unified quality assessment basis for manufacturing companies, thereby improving product quality and market competitiveness.

2. Technical requirements for burr height

According to Table 1, the limit value of burr height of stamping parts varies depending on material thickness, tensile strength, and processing accuracy. The following is a comparison of key data:

3. Practical Application Cases and Suggestions

Burr detection of stamping parts should use optical instruments or tool microscopes to ensure measurement accuracy. For products with high precision requirements, it is recommended to use the f-level standard; for medium-level products, the m-level can be selected; and for general requirements, the g-level is applicable.

4. Future evolution and suggestions of the standard

As the manufacturing industry develops towards intelligence and refinement, stamping technology will continue to innovate. It is recommended that enterprises implement the standard:

• Combining digital detection technology to optimize the burr control process.
• Strengthen employee training and improve operational standardization.
• Establish an internal quality traceability system to ensure long-term compliance.