A Complete Step-by-Step Manufacturing Guide from Artwork and Engineering to Metal Forming, Plating, Enamel, Quality Control & Packaging
Custom challenge coins, medals, police badges, military coins, metal badges, and lapel pins may look like simple metal products, but producing a high-quality finished piece requires multiple manufacturing stages.
A typical project can involve:
Artwork → Engineering → Digital Proof → Tooling → Metal Forming → Deburring → Polishing → Plating → Enamel → Assembly → Quality Inspection → Packaging
The exact process depends on the product, material, size, thickness, design complexity, quantity, and required finish.
ChallengeCoinBadges is a China-based custom metal products manufacturer with 20+ years of manufacturing experience and 100+ employees, providing OEM and ODM manufacturing for custom challenge coins, medals, police badges, military coins, metal badges, lapel pins, military badges, keychains, cufflinks, and other custom metal products.
1. Artwork Is the Starting Point
Every custom metal product begins with artwork or a product concept.
Customers may provide:
- AI files
- EPS files
- PDF files
- PNG or JPG images
- Sketches
- Existing product samples
- Logos
- Technical drawings
Vector artwork is generally preferred because it provides clearer information for production engineering.
However, artwork that looks good on a computer screen is not automatically ready for manufacturing.
For example, a design may contain:
- Extremely small text
- Very thin lines
- Narrow gaps
- Complex overlapping elements
- Excessively fine details
These details may need to be adjusted before tooling.
2. Engineering Review
The engineering team converts the artwork into a manufacturable design.
Important factors include:
- Product diameter
- Overall dimensions
- Thickness
- Material
- Relief depth
- Border width
- Line thickness
- Text size
- Enamel areas
- Plating
- Attachment method
This stage is particularly important for 3D challenge coins, detailed police badges, military insignia, and sculpted medals.
The objective is not simply to copy the artwork, but to determine how the design can be physically reproduced in metal.
3. Digital Proof and Customer Approval
Before tooling, a digital production drawing or mockup is normally prepared.
The customer should confirm:
- Shape
- Size
- Thickness
- Front design
- Back design
- Text
- Colors
- Relief
- Plating
- Attachment
For example, a double-sided military coin may have completely different designs on its front and back.
A clear approval process reduces the risk of manufacturing the wrong specifications.
4. Tooling and Mold Development
Once the artwork is approved, tooling is developed.
The mold controls the physical structure of the product.
It determines details such as:
- Outer shape
- Raised areas
- Recessed areas
- Borders
- Text
- Relief
- Logo structure
Why Is Tooling Important?
Consider two designs.
Design A:
Flat background + simple raised logo
Design B:
Three-dimensional aircraft + mountains + buildings + small text + multiple relief levels
Design B requires considerably more engineering consideration because the mold must reproduce multiple levels of depth.
5. Choosing the Metal
The material should be selected according to the design and manufacturing process.
Zinc Alloy
Zinc alloy is widely used for complex shapes and 3D products.
Common applications include:
- 3D challenge coins
- Sculpted medals
- Detailed badges
- Complex emblems
Brass
Brass is commonly used for:
- Challenge coins
- Medals
- Metal badges
- Lapel pins
Copper
Copper can be used for selected:
- Commemorative coins
- Specialty products
- Detailed metal items
Iron
Iron may be considered for:
- Promotional products
- Pins
- Certain badges
- Cost-sensitive products
There is no universally best metal.
The appropriate choice depends on:
Design + Size + Thickness + Manufacturing Process + Finish + Application + Budget
6. Metal Forming
After tooling is ready, the metal is formed into the required shape.
Depending on the product, manufacturing methods can include:
- Stamping
- Die casting
- 3D molding
- Cutting
- CNC machining
The appropriate process depends on the product’s structure and material.
7. Stamping Process
Stamping is commonly used for relatively flat products.
The basic concept is:
Metal Sheet → Die → Pressing → Formed Product
It is commonly suitable for:
- Simple medals
- Lapel pins
- Flat badges
- Some challenge coins
Stamping can efficiently reproduce repeated designs in larger quantities.
8. Die Casting and 3D Manufacturing
Die casting is suitable for many complex three-dimensional designs.
It can be used for:
- 3D challenge coins
- Sculpted medals
- Detailed badges
- Complex emblems
3D manufacturing allows the design to include different levels of relief.
For example, a firefighter challenge coin could contain:
- Raised firefighter helmet
- Recessed background
- 3D fire texture
- Raised lettering
- Enamel color areas
The additional relief creates greater visual depth.
9. Deburring
After metal forming, the product may have unwanted edges or small excess material.
Deburring removes these imperfections.
The process helps improve:
- Edge smoothness
- Surface appearance
- Safety
- Plating quality
This stage is particularly important for products with complex edges or detailed shapes.
10. Grinding and Surface Preparation
The product may then undergo grinding and surface preparation.
The goal is to create a suitable surface for:
- Polishing
- Plating
- Enamel
Typical inspection points include:
- Scratches
- Burrs
- Casting marks
- Uneven surfaces
- Surface defects
11. Polishing
Polishing determines how certain metal areas will appear after finishing.
Depending on the design, different areas may be:
- Highly polished
- Matte
- Brushed
- Antique
- Recessed
For example, a challenge coin may combine a polished raised logo with an antique recessed background.
This contrast can make the design easier to see.
12. Plating
Plating gives the product its final metal appearance and can provide additional surface characteristics.
Common options include:
- Gold
- Silver
- Nickel
- Black nickel
- Antique gold
- Antique silver
- Antique bronze
- Copper
- Dual plating
Bright Plating
Creates a brighter and more reflective appearance.
Antique Plating
Darkens recessed areas and emphasizes raised details.
Dual Plating
Combines two finishes.
For example:
Gold + antique silver
can create a strong visual contrast between the main emblem and background.
13. Enamel Application
Color can be added after the metal surface has been prepared.
Two common options are soft enamel and hard enamel.
Soft Enamel
Soft enamel sits below the surrounding metal borders.
It creates a textured finish and is commonly used for:
- Challenge coins
- Lapel pins
- Military badges
- Promotional products
Hard Enamel
Hard enamel is filled to the metal borders and polished.
It creates a smooth surface and is often selected for:
- Premium challenge coins
- Corporate lapel pins
- Recognition products
- High-end commemorative products
The choice depends on design, application, appearance, and budget.
14. Laser Engraving and Personalization
Some products require additional personalization.
Possible details include:
- Names
- Numbers
- Dates
- Serial numbers
- Member information
- Employee information
Laser engraving can be used for certain personalized elements.
For example, a military coin might include:
Unit emblem + service date + personalized number
A police badge may include a specific badge number.
Personalization can increase production complexity because each product may require different information.
15. Assembly
Some products require additional components.
Medals
May include:
- Ribbon
- Ring
- Connector
Police Badges
May include:
- Pin
- Clutch
- Screw-back
Lapel Pins
May include:
- Butterfly clutch
- Rubber clutch
- Screw-back
Challenge Coins
Special designs may include:
- Ball chains
- Key rings
- Magnets
- Other accessories
Assembly should be checked to ensure that components are correctly aligned and securely attached.
16. Quality Control
Quality control should not be limited to the final inspection.
A stronger production system can use multiple checkpoints.
Artwork QC
Check:
- Logo
- Text
- Colors
- Dimensions
Tooling QC
Check:
- Relief
- Borders
- Text
- Shape
Metal QC
Check:
- Thickness
- Shape
- Surface
- Weight where applicable
Plating QC
Check:
- Color
- Coverage
- Surface condition
- Consistency
Enamel QC
Check:
- Color
- Filling
- Bubbles
- Overflow
- Scratches
Assembly QC
Check:
- Pins
- Clutches
- Ribbons
- Rings
- Screws
Final QC
Check:
- Overall appearance
- Quantity
- Packaging
- Product specifications
17. Why Quality Control Matters: A Data Example
Imagine a hypothetical order of 10,000 custom challenge coins.
| Hypothetical Defect Rate | Potentially Defective Pieces |
|---|---|
| 5% | 500 |
| 3% | 300 |
| 2% | 200 |
| 1% | 100 |
| 0.5% | 50 |
| 0.1% | 10 |
If a hypothetical defect rate decreases from 2% to 0.5%, the number of potentially defective pieces falls from 200 to 50, a difference of 150 pieces.
These are mathematical examples, not actual defect-rate claims for ChallengeCoinBadges.
For large production orders, buyers should establish:
- Inspection standards
- Acceptable defect levels
- Sample procedures
- Packaging requirements
- Replacement procedures
before production begins.
18. How Custom Challenge Coins Are Made
The challenge coin process can be summarized as:
Artwork → Engineering → Mold → Metal Forming → Deburring → Polishing → Plating → Enamel → Inspection → Packaging
Common Challenge Coin Designs
- Military coins
- Police coins
- Firefighter coins
- Masonic coins
- Corporate coins
- Commemorative coins
- Event coins
Common Features
- 2D
- 3D
- Double-sided
- Soft enamel
- Hard enamel
- Antique finish
- Dual plating
- Custom edges
19. How Custom Medals Are Made
A typical medal process is:
Artwork → Tooling → Metal Forming → Surface Preparation → Plating → Enamel → Ribbon Assembly → QC → Packaging
Medals are widely used for:
- Running events
- Marathons
- Soccer
- Basketball
- Swimming
- School competitions
- Corporate recognition
- Military awards
- Charity events
A medal may also require a custom ribbon, which introduces an additional production stage.
20. How Police Badges Are Made
Police badge manufacturing generally follows:
Approved Artwork → Engineering → Tooling → Metal Forming → Polishing → Plating → Attachment → QC
Police badges may require:
- Custom shape
- Department emblem
- Badge number
- Rank
- Text
- Special plating
- Pin or screw-back
Because these products may represent official organizations, design authorization and accuracy are especially important.
21. How Military Coins Are Made
Military coins generally follow:
Unit Artwork → Engineering → Tooling → 2D/3D Forming → Surface Treatment → Plating → Enamel → QC
Typical designs include:
- Unit insignia
- Military branch symbols
- Aircraft
- Vehicles
- Buildings
- Flags
- Dates
- Mottos
Complex military designs often benefit from 3D relief.
22. How Metal Badges Are Made
Metal badges can be produced through:
Artwork → Mold → Stamping or Die Casting → Polishing → Plating → Enamel → Assembly → QC
Depending on the application, a badge may use:
- Brass
- Zinc alloy
- Copper
- Iron
The manufacturing method depends on the product’s structure and required level of detail.
23. How Lapel Pins Are Made
A typical lapel pin manufacturing process is:
Artwork → Mold → Stamping/Die Casting → Polishing → Plating → Enamel → Attachment → QC
Common applications include:
- Military insignia
- Police organizations
- Fire departments
- Masonic lodges
- Corporate branding
- Schools
- Clubs
- Associations
- Conferences
24. How Production Quantity Changes the Process
Production volume can affect manufacturing efficiency.
Consider a simplified hypothetical cost model:
Total Cost = $100 Setup + $2.00 × Quantity
100 Pieces
Total = $300
Unit cost = $3.00
1,000 Pieces
Total = $2,100
Unit cost = $2.10
10,000 Pieces
Total = $20,100
Unit cost = $2.01
This demonstrates how fixed setup costs can be distributed across larger production quantities.
Actual quotations include many additional variables.
25. What Makes a Custom Metal Product Difficult to Manufacture?
Not every design has the same level of difficulty.
Factors that increase manufacturing complexity can include:
- Extremely small text
- Fine lines
- Deep 3D relief
- Multiple relief levels
- Complex shapes
- Multiple plating finishes
- Many enamel colors
- Individual numbering
- Moving components
- Special attachments
For example, a simple 2D lapel pin may be relatively straightforward, while a double-sided 3D challenge coin with several finishes requires considerably more engineering and finishing work.
26. Applications of Custom Metal Products
Military
- Challenge coins
- Military coins
- Badges
- Medals
- Insignia
Used for:
Recognition, retirement, promotions, deployment, service awards and commemorative events
Police & Law Enforcement
- Police badges
- Challenge coins
- Medals
- Lapel pins
Used for:
Officer recognition, retirement, anniversaries and special events
Firefighter
- Firefighter coins
- Badges
- Medals
- Pins
Used for:
Station recognition, awards, retirement and memorial events
Sports
- Medals
- Event pins
- Commemorative coins
Used for:
Marathons, running races, soccer, basketball, swimming and tournaments
Corporate
- Challenge coins
- Medals
- Lapel pins
- Badges
Used for:
Employee recognition, company anniversaries, branding and executive gifts
Education
- Medals
- Pins
- Coins
Used for:
Graduation, academic awards, alumni events and school competitions
Clubs & Associations
- Membership pins
- Challenge coins
- Medals
Used for:
Membership recognition, conferences, fundraising and anniversaries
27. ChallengeCoinBadges Manufacturing Capability
ChallengeCoinBadges is a China-based custom metal products manufacturer with:
- 20+ years of manufacturing experience
- 100+ employees
- OEM manufacturing capability
- ODM product development support
- Engineering assistance
- 2D manufacturing
- 3D manufacturing
- Multiple metal materials
- Multiple plating finishes
- Soft enamel
- Hard enamel
- Assembly
- Packaging
Main Products
- Custom Challenge Coins
- Custom Medals
- Police Badges
- Military Coins
- Metal Badges
- Military Badges
- Lapel Pins
- Keychains
- Cufflinks
- Car Emblems
The company can support projects from:
Artwork → Engineering → Tooling → Production → Finishing → Inspection → Packaging
Frequently Asked Questions
How long does it take to make custom challenge coins?
Production time depends on the design, tooling, quantity, finishing, personalization, and packaging. A specific lead time should be confirmed after the manufacturer reviews the project.
What is the most common material for challenge coins?
Brass and zinc alloy are commonly used, but the best material depends on the design and manufacturing method.
Can challenge coins be 3D?
Yes. 3D challenge coins can include multiple levels of relief and sculpted details.
Can medals be customized with ribbons?
Yes. Custom medals can be paired with customized ribbons and different attachment systems.
Can police badges be personalized?
Depending on the project, badges can include numbers, ranks, names, and organizational details. Official customers should verify authorization before production.
Are military coins usually double-sided?
Double-sided designs are common because they allow the front and back to communicate different information, but single-sided coins are also possible.
Can lapel pins use hard enamel?
Yes. Hard enamel is commonly used when a smooth, polished surface is desired.
Can I manufacture the same design in different products?
Yes. A single organizational design can potentially be adapted into:
Challenge Coin + Medal + Lapel Pin + Badge + Keychain
However, each product may require separate engineering and tooling because the manufacturing structure differs.
Can I approve a sample before mass production?
Yes. For complex or large orders, physical sample approval is recommended.
What should I provide when requesting a quotation?
Provide:
- Product type
- Artwork
- Size
- Thickness
- Material
- Quantity
- Plating
- Enamel
- Attachment
- Packaging
- Delivery location
The more complete the specifications, the more accurate the quotation can be.
Final Thoughts
Custom challenge coins, medals, police badges, military coins, metal badges, and lapel pins all begin with artwork, but the artwork is only the first step.
A professional manufacturing process requires:
Artwork → Engineering → Tooling → Metal Forming → Deburring → Polishing → Plating → Enamel → Assembly → Quality Control → Packaging
Every stage can affect the final result.
For a simple 2D lapel pin, the manufacturing process may be relatively straightforward. A detailed 3D military coin or police badge can require substantially more engineering, tooling, and finishing work.
That is why buyers should evaluate a manufacturer based on manufacturing experience, engineering capability, materials, finishing options, quality control, sample approval, production capacity, and communication, rather than price alone.
With 20+ years of manufacturing experience and 100+ employees, ChallengeCoinBadges provides OEM and ODM custom metal manufacturing for military organizations, police departments, firefighter organizations, sports events, corporations, schools, associations, promotional companies, and retail businesses.
ChallengeCoinBadges
Website: www.challengecoinbadges.com
Email: sales@challengecoinbadges.com