The lamp covers normally have complex shapes, often with deep-cavity, multi-step rotational bodies and sharp corners, which require multi-stage precision deep drawing dies.

1.     Multi-stage Precision Deep Drawing die•

The lamp covers require continuous deep drawing through multiple die sets (typically 4–8 sets), then forming the flat sheet into the required deep-cavity complex shape.
• Die Characteristics:
o Design the process Step: The deformation amount for each stage must be precisely calculated, balancing the material flow, preventing wrinkling and cracking, and these considerations must be considered from the beginning of the design
o High Rigidity mold steel: To avoid elastic deformation during stamping and drawing that affects surface precision, the dies are normally made of extremely high structural rigidity steel
Design the mold Clearance: The gap between the punch and die must be controlled—uniform and slightly larger than material thickness—to ensure smooth material flow without excessive thinning.

Balance Wrinkling and Cracking in a Metal Sheet
For deep drawing of metal sheets, flat areas are prone to wrinkling, while sharp corners and step surfaces are prone to cracking. To avoid this, we need to use a reasonable deep drawing process, fill with high-performance deep drawing oils, and add Process Supplement and drawing ribs

Mold Experts in Lamp Cover Deep Drawing Molds

Lamp covers often have intricate geometries, like deep cavities, multi-step rotational contours, and sharp corners. These complex shapes demand multi-stage precision deep drawing molds. Yixing technology have 20+years’ experience and can meet these challenges.

1.     20+years’ Deep Drawing Expertise
To transform flat metal sheets into deep-cavity, complex-shaped lamp covers, our molds are designed to perform continuous deep drawing across multiple stages—typically 4 to 8 stations. This design ensures the material is gradually formed by the Deep Drawing process.

Reasonable Deep Drawing Processes  – Each stage is carefully calculated to balance material flow, prevent wrinkling, and avoid cracking.

High-Rigidity Mold Steel – To eliminate elastic deformation during stamping and drawing—which can influence surface accuracy—our molds use ultra-rigid, high-strength steels. This guarantees the part quality even under high-pressure conditions.

Optimized Die Clearance – The gap between punch and die is well controlled, this ensure material flow smoothly.

Good Surface Finish, Control Wrinkling and Cracking
 By combining precise tool geometry with high-quality materials, we achieve excellent surface quality on formed lamp covers, free from defects such as scoring or die marks.

With extensive experience in deep drawing mold design and manufacturing, we provide one-stop solutions that produce complex, and high-precision lamp cover molds. We combined rigorous process planning, premium mold materials, and advanced simulation to ensure that every mold meets the highest standards of performance and durability.