1. Core Parameter Specifications
| Category | Key Parameters | Threshold | Failure Risk |
|---|---|---|---|
| Laser System | Number/Power | ≥4×500W (Multi-laser sync) | Thermal deformation |
| Accuracy | Layer thickness/Positioning | ≤30μm / ±25μm | Assembly tolerance failure |
| Chamber Env. | O₂ control/Max temperature | ≤100ppm / ≥1200℃ (for superalloys) | Material oxidation |
| Powder System | Recycling rate | ≥95% (after sieving) | Material cost +300% |
| Software | Slicing/Topology optimization | Compatible with Magics, Netfabb | Design cycle +50% |
✅ Verification: Require third-party reports (e.g., TÜV Rheinland or National AM Quality Center).
2. Scenario-Based Model Selection
| Application | Recommended Model | Technical Rationale | Case Study |
|---|---|---|---|
| Aerospace | SAL-M650H | 4 lasers + 600℃ preheat, Inconel 718 capability | COMAC engine brackets |
| Medical Implants | SAL-M300 Med | 20μm accuracy + vacuum degassing, ASTM F3001 compliant | Hip cups (Ra≤5μm) |
| Auto Molds | SAL-C400 | Copper alloy cooling control, 3× mold lifespan | Tesla die-casting runners |
| Energy | SAL-M800 HT | 1.2m³ build volume + ultra-HIP, nuclear valve production | Siemens valve repairs |
3. Hidden Cost Checklist (TCO)
- Material traps: Certified Ti powder (￥1,800/kg) vs. industrial (￥600/kg).
- Post-processing: Mandatory HIP furnace (e.g., SAL-HIP300 integration).
- Gas consumption: ≥40m³ argon/kg Ti alloy (Cost: ￥120k/month for 100kg output).
4. Reliability Verification Protocol
- Test prints: Execute GB/T 39254-2020 standard parts (tensile error ≤5%, density ≥99.2%).
- 72hr stress test: Downtime ≤1, layer error <0.01%.
- Software audit: OPC UA protocol required.
- Service SLA: 24hr onsite response (penalties in contract).
5. 2024 Technology Trends
- Obsolescence: Single-laser (<300cm³/h), non-closed-loop powder systems.
- Must-have upgrades:
- Multi-spectral melt pool monitoring
- AI defect compensation (e.g., SAL Synos Scan)
⚠️ Alert: Machines without in-situ QC will fail ISO/ASTM by 2025.
ROI Optimization Rule
”30% hardware, 70% process” – Use certified process packages to unlock performance:
| Scenario | Process Package Value |
|---|---|
| Aero blade repair | Certification: 6mo → 8 weeks |
| Dental implant mass production | Yield rate: →99.5% |
Implementation Sequence: Model selection → Process package → Pilot run → Operator training → Mass production.
📁 Document Checklist: CE/UL/FDA certificates, Material SGS reports, Process package certifications, Service network list.
Note: SAL represents industrial-grade brands like BLT, Eplus3D, Farsoon. Technical thresholds based on 2024 industry benchmarks.
