Hydrogen Fuel Cells
Tolerance ±0.1mm - ±0.2mm · min feature Min Wall: 0.4mm; Min Hole: 0.6mm
| Physical Properties | |
| Density | 8 |
|---|---|
| Tensile Strength | 515.0 |
| Max Service Temp | 870.0 |
| Hardness | 85 HRB |
| Standard Tolerance | ±0.1mm - ±0.2mm |
| Manufacturing Limits | |
| Equipment Specs | Build Volume: 400mm x 250mm x 400mm; Laser System: Dual or Triple 500W Fiber Lasers; Layer Thickness: 20-100 μm; Max Scan Speed: 7.0 m/s; Atmosphere: Argon/Nitrogen inert gas protection with O2 content <100 ppm; Build Plate Heating: Up to 200°C; Qualified Materials: Titanium Alloys (Ti6Al4V), Aluminum Alloys (AlSi10Mg), Nickel Superalloys (IN718), Stainless Steels (316L), CoCr alloys. |
| Min Feature Size | Min Wall: 0.4mm; Min Hole: 0.6mm |
| Precision Grade | As-printed dimensional accuracy typically falls within ±0.1mm for features under 100mm, or ±0.2% for larger dimensions. Critical features require post-machining to achieve tolerances of IT7 or better. |
| Commercial | |
| Factory Advantage | The high work-hardening nature of 316L stainless steel, combined with the inherent residual stress of SLM, typically compromises the flatness crucial for fuel cell end plates. Our strategy leverages the BLT S400's exceptional thermal management and atmospheric control. This system precisely mitigates the thermal gradients that cause distortion and porosity, allowing us to print dense, metallurgically sound components. At MechanoFab, this enables us to produce complex end plates with integrated cooling channels in a single operation, achieving a level of flatness and dimensional accuracy that eliminates the need for the subsequent, tolerance-degrading face milling operations our competitors rely on. The result is a component that meets stringent SAE J2579 requirements for uniform stack compression, directly from the build plate with only minimal support removal and mandatory stress relief. |
| Target Volume | Optimized for 1-50 units |