How is metal stamping done?

Introduction

Metal stamping is a manufacturing process used to convert flat metal sheets into specific shapes. It is a critical process in the production of both simple and complex components for a wide variety of industries, including the automotive, aerospace, medical, and electronics sectors.

Process Overview

Metal stamping involves various techniques such as blanking, bending, coining, embossing, and flanging. The process begins with feeding a metal sheet into a stamping press where a tool and die surface forms the metal into the desired shape. Stamping can be performed in either a single stage operation where every stroke of the press produces the desired part, or in a series of stages across multiple operations.

Equipment Used

The main equipment used in metal stamping includes stamping presses and dies. Stamping presses range from 10 tons to 50,000 tons capacity, allowing for the handling of thin metal sheets to thick metal plates. The precision and force of these presses are critical to ensuring quality outputs, with modern presses achieving accuracy within ±0.01 mm.

Parameters and Quality Control

• Material Thickness: Typically ranges from 0.001 inches to 0.625 inches, affecting force requirements and tooling choices.
• Blanking Force: Calculated as F = t × P × L × 0.7, where t is material thickness, P is perimeter, and L is tensile strength.
• Bending Radius: Minimum recommended is equal to the material thickness to prevent cracking.
• Tolerance Levels: Maintained at ±0.05 mm for critical dimensions.
• Quality Control: Includes non-contact optical inspection ensuring dimension accuracy and surface finish assessments down to Ra 1.6 µm.

Dongguan Longying Company Solutions

Dongguan Longying offers comprehensive metal stamping solutions including custom tooling design, prototyping, and full-scale production. The company specializes in high-precision stamping with a commitment to maintaining tight tolerances and delivering high-quality products. Their facilities utilize state-of-the-art equipment and quality assurance processes ensuring consistent output and customer satisfaction.

Conclusion

Metal stamping is a versatile and efficient manufacturing process essential for a wide range of industries. Advances in technology, particularly through companies like Dongguan Longying, continue to enhance capabilities, allowing for faster production times, greater accuracy, and lower costs.

References

1. Kalpakjian, S., & Schmid, S. R. (2014). Manufacturing Engineering and Technology.
2. Groover, M. P. (2015). Principles of Modern Manufacturing.
3. Dongguan Longying Precision Parts Supplier Documentation.