From CAD to Reality: JINGYING’s Complete OEM Process for American Client’s Custom Earring Production

Executive Summary

This 5,000-word technical whitepaper documents JINGYING Jewelry Manufacturing’s end-to-end OEM service for a U.S.-based fashion brand’s custom earring collection. The case study examines how an American client’s CAD designs were transformed into 12,000 pairs of finished earrings, highlighting:

• Cross-border design collaboration protocols

• Technical adaptations for mass production

• Quality assurance systems meeting U.S. market standards

• Logistics solutions for trans-Pacific jewelry shipping

목차

1. Project Initiation Phase

   • 1.1 Client Profile: 우리를. Fashion Brand Requirements

   • 1.2 Design Handoff: CAD File Analysis & DFM Review

   • 1.3 Regulatory Compliance Planning (Cpsia, Prop 65)

2. Pre-Production Engineering

   • 2.1 CAD Optimization for Manufacturing

   • 2.2 재료 선택 & Sourcing Strategy

   • 2.3 Prototyping Process (3D Printing vs. Hand Samples)

3. Production Execution

   • 3.1 Metal Fabrication Techniques

   • 3.2 석재 설정 & 표면 마무리

   • 3.3 Quality Control Checkpoints

4. 포장 & 규정 준수

   • 4.1 우리를. 포장 & Labeling Requirements

   • 4.2 Hazardous Materials Testing

   • 4.3 Export Documentation

5. 기호 논리학 & 배달

   • 5.1 Air vs. Ocean Shipping Cost Analysis

   • 5.2 Customs Clearance Strategies

   • 5.3 Inventory Management for Multi-Shipment Orders

6. Post-Production Evaluation

   • 6.1 Defect Rate Analysis

   • 6.2 Client Feedback Implementation

   • 6.3 Process Improvements for Future Orders

1. Project Initiation Phase

1.1 Client Profile

The Massachusetts-based client requested:

• 제품: 925 silver geometric drop earrings with cubic zirconia

• 수량: 12,000 한 쌍 (4 color variants)

• 배달: 3 shipments over 8 달

• 인증: Must comply with California Proposition 65

1.2 CAD File Analysis

JINGYING’s engineering team identified 3 required modifications:

1. Prong Thickness Adjustment (Original 0.3mm → Modified 0.5mm for durability)

2. Hinge Mechanism Redesign (For easier assembly)

3. 체중 감소 (From 8.2g to 6.5g per earring)

테이블: CAD Design vs. Production-Ready Comparison

1.3 Compliance Documentation

• Conducted RHOS testing for silver alloy

• Prepared CPSIA tracking labels

• Verified nickel content below 0.05%

2. Pre-Production Engineering

2.1 Rapid Prototyping Process

• 생산 4 prototype versions using:

  • SLA 3D printing (For form verification)

  • 잃어버린 왁스 캐스팅 (For metal samples)

  • Hand-fabricated samples (For mechanism testing)

Prototyping Timeline

3. Production Execution

3.1 Manufacturing Workflow

1. Silver Casting

   • Used vacuum casting machines

   • Achieved 92% material utilization rate

2. Automated Polishing

   • Implemented robotic polishing arms

   • Reduced hand-polishing time by 65%

3. Laser Stone Setting

   • Precision CZ placement with 0.1mm tolerance

   • 0.3% stone loss rate (Industry average: 1.2%)

3.2 Quality Control Metrics

• 치수 정확도: ±0.15mm

• Stone tightness: 50g pull test

• Surface defects: <0.5% allowance

4. 포장 솔루션

4.1 Custom Packaging Components

• Recyclable PET blister cards

• Soy-based ink printing

• Multilingual care instructions

Packaging Cost Breakdown

5. Logistics Management

5.1 Shipping Cost Comparison

Selected hybrid solution with:

• First batch via air (for market testing)

• Subsequent shipments via ocean

6. Key Performance Indicators

6.1 Production Efficiency Metrics

• First-pass yield rate: 94.7%

• On-time delivery: 100%

• Return rate: 0.8% (Mostly for minor finish issues)

결론

This project established JINGYING’s capability to:

1. Accurately interpret Western design aesthetics

2. Implement design-for-manufacturing improvements

3. Maintain rigorous U.S. compliance standards

The successful partnership has led to:

• 30% cost reduction versus client’s previous manufacturer

• 15% faster production cycle time

• Ongoing contract for 5 new designs