Custom Requirements for Metal Stamping Parts
1. Basic Product Information
Product Name
Product Application
Industry Application:
Automotive Industry
Home Appliances
Electronics
Medical Devices
New Energy Equipment
Communication Equipment
Annual / Monthly Demand Quantity
Export Product: Yes / No
2. Drawing Requirements
Please provide:
2D Drawings (PDF / DWG)
3D Files (STEP / IGS)
Assembly Drawings if available
The drawings should clearly indicate:
Dimensions
Overall Dimensions
Hole Dimensions
Bending Dimensions
Forming Height
Tolerance Requirements
For example:
General Tolerance: ±0.1mm
Precision Tolerance: ±0.02mm
Hole Diameter Tolerance
Flatness
Perpendicularity
Concentricity
Special Requirements
Deburring
No Scratches
No Dent Marks
Chamfered Edges
Anti-Deformation
3. Material Requirements
Common materials for custom metal stamping parts include:
| Material | Features |
|---|---|
| SPCC Cold Rolled Steel | Cost-effective and easy to stamp |
| SUS304 Stainless Steel | Corrosion resistance |
| Aluminum (5052 / 6061) | Lightweight |
| Copper | Excellent electrical conductivity |
| SECC Galvanized Steel | Rust prevention |
Please specify:
Material Grade
Material Thickness (e.g. 1.0mm)
Hardness Requirements
Material Certification Requirements (ROHS / SGS / MSDS)
4. Metal Stamping Process Requirements
Common precision metal stamping processes include:
Punching
Blanking
Deep Drawing
Bending
Flanging
Riveting
Tapping
Welding
Laser Cutting
Please clarify:
Die Type
Progressive Die
Single Punch Die
Compound Die
Forming Requirements
No Cracks
No Wrinkles
No Surface Scratches
Bending Requirements
Bending Angle Tolerance
Bending Radius
5. Surface Finishing Requirements
Common surface treatments for sheet metal stamping parts:
| Surface Treatment | Purpose |
|---|---|
| Zinc Plating | Rust protection |
| Nickel Plating | Corrosion resistance and conductivity |
| Anodizing | Aluminum protection |
| Powder Coating | Decorative appearance |
| Brushed Finish | Premium appearance |
| Passivation | Corrosion resistance |
Please specify:
Color
Salt Spray Test Hours
Coating Thickness
Cosmetic Appearance Standards
Example:
Black Powder Coating
Coating Thickness: 80μm
Salt Spray Test: 48 Hours
6. Stamping Die Requirements
Die Ownership
Customer-Owned Tooling
Manufacturer-Owned Tooling
Tooling Life
For example:
≥500,000 Shots
≥1,000,000 Shots
Tooling Maintenance
Preventive Maintenance Included or Not
Tool Repair Responsibility
7. Quality Control Requirements
Inspection Standards
GB Standards
ISO Standards
DIN Standards
JIS Standards
Inspection Items
Dimensional Inspection
Visual Inspection
Salt Spray Testing
Hardness Testing
Assembly Testing
Defect Rate Requirements
For example:
≤0.3%
Zero Defect Requirement
8. Packaging Requirements
Examples:
Individual PE Bag
Blister Tray Packaging
Anti-Rust Paper
Carton Labeling
Pallet Packaging
Please specify:
Rust Prevention Requirements
Export Packaging Requirements
Barcode Label Requirements
9. Lead Time Requirements
Prototype Lead Time
Tooling Lead Time
Mass Production Lead Time
Example:
Sample Production: 7 Days
Tooling Production: 20 Days
Mass Production: 15 Days
10. Quotation Requirements
Suppliers should clearly include:
Tooling Cost
Unit Price
Surface Treatment Cost
Shipping Cost
Tax Rate
Minimum Order Quantity (MOQ)