One-Stop Solutions for Complex Lamp Covers

Lamp covers typically feature complex geometries, including deep cavities, multi-step rotational bodies, and sharp corners, which demand multi-stage precision deep-drawing dies. Yixing Technology brings over 20 years of expertise to these challenges. We don't just manufacture molds—we provide comprehensive manufacturing solutions to accelerate your prototyping and reduce overall costs.

Metal Lamp Shade Shell Capably

Material We support

Process Comparison

1. Deep Drawing Mold (High Volume)

Lamp covers require continuous deep drawing through multiple die sets (typically 4–8 stations) to form flat sheets into complex deep-cavity shapes. How we can get the top quality parts?

1) Reasonable Process Design

The deformation amount for each stage is precisely calculated to balance material flow, preventing wrinkling and cracking from the very beginning of the design phase.

2) High-Rigidity Mold Steel

Dies are manufactured from extremely high structural rigidity steel to prevent elastic deformation during stamping, ensuring superior surface precision.

3) Optimized Mold Clearance

The gap between punch and die is uniformly controlled—slightly larger than material thickness—to ensure smooth material flow without excessive thinning.

4) Wrinkle & Crack Prevention

We utilize advanced deep-drawing processes, high-performance oils, process supplements, and drawing ribs to balance flat-area wrinkling and corner cracking.

5) Flawless Surface Finish on Formed Lamp Cover

Defect-Free Surface Quality – Free from Scoring or Die Marks

2. Metal Spinning (Small Quantities)

Understanding that tooling costs and lead times are critical, we offer metal spinning services for lamp covers. This allows us to produce complex parts without heavy investment in tooling.

1) Cost-Effective and more Flexibility

Metal spinning achieves deep-cavity shapes similar to deep drawing but eliminates expensive die costs entirely.

2) Fast Test

Go from CAD model to physical part in days, not weeks—perfect for prototyping and low-volume production.

Our Process Flow

1. Deep drawing die For high quantity :

DFM Design → Die Manufacturing (CNC / Wire EDM / EDM) → Die Assembly → Trial Run (T1) → Small-Batch Validation → Mass Production

1) DFM – Review drawings, shell geometry, draw ratio, stations, clearance, springback.

2) Die Manufacturing – CNC, wire EDM, sinker EDM, grinding, heat treatment, coating, inspection.

3) Die Assembly – Assemble plates, punches, dies, pilots, springs; set clearance and feed.

4) Trial Run (T1) – Mount die, run samples, check dimensions, roundness, flatness, surface; adjust.

5) Small Batch – 500–5,000 pcs; CPK/PPK, tool wear, polishing, PPAP approval.

6) Mass Production – High-speed deep drawing, SPC, maintenance, polishing, packaging.

2. Metal Spinning (Low Volume / Prototype):

DFM Design → Mandrel Manufacturing → Spinning → Trimming → Surface Finishing → Inspection → Shipment

1) DFM – Review drawings, shell geometry, spinning feasibility, material.

2) Mandrel Manufacturing – CNC turning, polishing, heat treatment.

3) Spinning – Mount blank, spin at 200–800 RPM, form against mandrel.

4) Trimming – Cut to final height, edge deburring.

5) Surface Finishing – Polishing, anodizing, painting, brushing.

6) Inspection – Dimensions, roundness, surface roughness.

7) Shipment – Packing and delivery.

Why Choose Us?

We are an ISO-certified company with a strict quality control system, designing and manufacturing molds strictly according to customer requirements. We provide one-stop stamping solutions combining high stability, competitive pricing, and reliable performance. We look forward to putting our expertise to work for you.