EOS MaragingSteel MS1 DMSL on EOS M 400-4

EOS MaragingSteel MS1 DMSL on EOS M 400-4 Product Information -:- For detailed product information, please contact sales. -: EOS MaragingSteel MS1 DMSL on EOS M 400-4 Synonyms -:- For detailed product information, please contact sales. -:

EOS MaragingSteel MS1 DMSL on EOS M 400-4 Product Information -:- For detailed product information, please contact sales. -: # EOS MaragingSteel MS1 ## DMSL on EOS M 400-4 Quad-Laser Production System --- ### **Product Overview** **EOS MaragingSteel MS1** is a premium gas-atomized, precipitation-hardenable steel powder optimized for industrial additive manufacturing. When processed on the **EOS M 400-4**—a **large-format, quad-laser Direct Metal Selective Laser Melting (DMSL)** system—it enables the **high-productivity fabrication of ultra-high-strength, large-scale components** with build volumes up to 400 x 400 x 400 mm. This specific machine-material combination represents the **apex of production-scale maraging steel AM**, leveraging four synchronized 400W lasers to achieve exceptional build rates while maintaining mechanical properties exceeding 2000 MPa UTS after aging. It is engineered for **factory-floor production** of end-use aerospace components, tooling, and industrial parts where size, throughput, and material performance are critical. --- ### **Chemical Composition (Weight %) - Production-Optimized Powder** *Specially controlled for large-area, multi-laser processing stability.* | Element | EOS MS1 Specification | Criticality for M 400-4 Process | |---------|----------------------|--------------------------------| | **Nickel (Ni)** | 17.0 - 19.0 | Ensures uniform martensitic transformation across the entire 400mm plate. | | **Cobalt (Co)** | 8.5 - 9.5 | Drives consistent aging response in parts from different laser zones. | | **Molybdenum (Mo)** | 4.5 - 5.2 | Primary precipitation hardener; must be homogeneously distributed. | | **Titanium (Ti)** | 0.6 - 0.8 | Optimized for minimal oxidation during extended multi-laser builds. | | **Aluminum (Al)** | ≤ 0.10 | Tight control ensures stable powder flow across large recoater area. | | **Carbon (C)** | ≤ 0.03 | Ultra-low carbon prevents hot cracking in high-stress, large cross-sections. | | **Oxygen (O)** | **≤ 0.08% (800 ppm)** | **Stringent control** critical for achieving high ductility and fatigue performance in large production parts. | | **Nitrogen (N)** | ≤ 0.05% | Controlled to prevent nitride formation. | | **Iron (Fe)** | Balance | Base element. | **Powder Specifications for M 400-4:** * **Particle Size Distribution:** **15 - 45 µm** (optimized for 40µm layer thickness and fine feature resolution). * **Morphology:** High sphericity (>95%), satellite-free. * **Flowability:** Hall Flow < 28 s/50g (essential for uniform spreading over 400mm width). * **Apparent Density:** ≥ 4.0 g/cm³. * **Packaging:** Bulk containers (e.g., 200-400 kg) for continuous production feeding. --- ### **EOS M 400-4 System & Quad-Laser Process** **System Configuration:** * **Lasers:** **4 x 400W IPG Yb-fibre lasers** with independent galvanometer scanners. * **Build Volume:** **400 x 400 x 400 mm** (standard), 400 x 400 x 360 mm (with 40µm layers). * **Atmosphere:** High-purity **Nitrogen (N₂)** or Argon, with multi-point O₂ monitoring (< 0.1%). * **Layer Thickness:** **40 µm** (standard production), 30 µm (high detail), 60 µm (high rate). * **Recoater:** High-speed, vibration-assisted blade for consistent powder deposition. * **Process Control:** Integrated **EOSTATE Monitoring Suite** (melt pool monitoring, layer imaging, atmosphere analytics). **Quad-Laser Build Strategy:** * **Field Partitioning:** Dynamic assignment of four overlapping 210 x 210 mm scan fields. * **Scan Strategy:** **Island scanning with random offset** (e.g., 5 x 5 mm islands) to minimize residual stress and hide stitch lines. * **Laser Synchronization:** Intelligent job splitting ensures all four lasers operate at optimal utilization. * **Parameter Set:** **EOS Performance ParameterSet for MS1** on M 400-4, optimized for speed and density. **Key Capabilities:** * **Build Rate:** Up to **100 cm³/hr** total volumetric deposition rate. * **Reduced Build Time:** Up to **4x faster** than single-laser systems for full-bed builds. * **Thermal Management:** Distributed heat input reduces warpage in large parts. --- ### **Post-Processing Heat Treatment** *Standard for MS1, but scaled for large-part geometry.* 1. **Stress Relief (Highly Recommended):** 650°C for 3-6 hours (scale with part mass/section thickness). 2. **Solution Annealing:** 820°C ± 10°C for 1 hour + 1 hour per 100mm of thickest section, vacuum/argon, furnace cool. 3. **Aging (Precipitation Hardening):** **490°C for 6-8 hours**, air cool. *(Extended time ensures through-hardening of massive sections).* --- ### **Mechanical Properties (After Full HT - M 400-4 Production)** *Data from standard XY test coupons built with 40µm parameters. Properties are statistically validated across laser zones.* | Property | Minimum Guaranteed (XY) | Typical Production Range (XY) | Z-Direction (Typical) | Test Standard | |----------|-------------------------|-------------------------------|------------------------|---------------| | **Ultimate Tensile Strength** | 1950 MPa | 2000 - 2100 MPa | 1900 - 2020 MPa | ASTM E8 | | **0.2% Yield Strength** | 1900 MPa | 1950 - 2050 MPa | 1850 - 1980 MPa | ASTM E8 | | **Elongation** | 8% | 9 - 12% | 7 - 10% | ASTM E8 | | **Reduction of Area** | 40% | 45 - 55% | 35 - 48% | ASTM E8 | | **Hardness** | 50 HRC | 52 - 54 HRC | 52 - 54 HRC | ASTM E18 | | **Fatigue Strength (10⁷, R=-1, polished)** | 500 MPa | 550 - 650 MPa | 500 - 600 MPa | ASTM E466 | | **Fracture Toughness (K_IC)** | 55 MPa√m | 60 - 75 MPa√m | 50 - 65 MPa√m | ASTM E399 | | **Impact Energy (Charpy V)** | 20 J | 25 - 35 J | 20 - 30 J | ASTM E23 | | **Density** | 99.5% | **99.8 - 99.95%** | - | Archimedes / µCT | **Property Uniformity:** The hallmark of a well-calibrated M 400-4. Variance in UTS between parts from different quadrants is typically **< 3%**. --- ### **Physical Properties (Aged Condition)** | Property | Value | |----------|-------| | **Density** | 8.0 - 8.1 g/cm³ | | **Thermal Conductivity** | 19 - 21 W/(m·K) | | **Coefficient of Thermal Expansion** | 10.8 x 10⁻⁶ /K (20-100°C) | | **Electrical Resistivity** | ~0.65 µΩ·m | --- ### **International Standards & Production Certification** * **Machine Qualification:** EOS M 400-4 system certification per **ISO/ASTM 52920** (Qualification of AM Systems). * **Material:** Powder certified to **EOS MS1 Specification** with batch traceability. * **Process Standards:** * **SAE AMS7003:** Additive Manufacturing, Laser Powder Bed Fusion, Maraging Steel 18Ni-300. * **ISO/ASTM 52941:** Additive manufacturing — System performance and reliability — Qualification of PBF machines. * **Aerospace Protocols:** Compliant with **Boeing BMS7-400**, **Airbus AIP**, **NADCAP AMS7000** requirements. * **Quality Management:** Full digital thread via **EOSCONNECT** and **EOS QM Suite** for part traceability. --- ### **Primary Applications (Large-Scale & Batch Production)** 1. **Aerospace & Defense (Primary Market):** * **Large structural brackets, fittings, and housings** for aircraft and satellites. * **Integrated engine components** (e.g., mounts, housings). * **Tooling for composite layup** (caul plates, mandrels) up to 400mm scale. * **Unmanned Aerial Vehicle (UAV) structural frames** in single-piece construction. 2. **Advanced Tooling & Molding:** * **Large, conformal-cooled injection molds** for automotive panels (bumpers, door panels). * **Die casting inserts** for automotive structural parts. * **Molds for aerospace composites** (e.g., radomes, fairings). 3. **Energy & Industrial:** * **Large valve bodies and manifolds** with internal channels. * **Heat exchanger components** for power generation. * **Components for offshore and subsea equipment.** 4. **Motor Sports & High-Performance:** * **Chassis components, suspension uprights** for large format vehicles. * **Customized parts for performance and luxury automotive.** --- ### **Design for M 400-4 Production (Large-Format DfAM)** * **Maximum Part Size:** Design within **380 x 380 x 360 mm** (allowing for supports and thermal contraction). * **Laser Zone Awareness:** Place critical features away from potential stitch lines at field overlaps. * **Support Strategy:** Use **block supports with breakaway interfaces** for large overhangs; minimize support volume to reduce post-processing. * **Thermal Stress Management:** Incorporate **stress-relief features** (e.g., generous fillets, uniform wall transitions) to prevent warpage. **Production Workflow:** 1. **Build Preparation:** Advanced nesting with **EOSPRINT** or **Materialise Magics** for multi-part builds. 2. **Automated Build:** Integrated with **EOS Powder Management Station** for automated powder handling. 3. **Post-Processing:** * Wire EDM removal from build plate. * **Automated support removal** (ultrasonic, machining). * **CNC machining** of critical interfaces and sealing surfaces. * **Heat treatment** in large batch furnaces. * **Surface finishing** (polishing, coating). 4. **Quality Assurance:** **In-process monitoring** + **CT scanning** of critical parts + **mechanical testing** of witness samples from each build. --- ### **Economic & Operational Advantages** * **High Utilization:** Quad-laser system dramatically reduces cost-per-part for large or batch builds. * **Material Efficiency:** Near-net-shape production minimizes waste of expensive maraging steel. * **Production Scalability:** Suitable for **low-to-medium volume serial production** (dozens to hundreds of parts). * **Reduced Lead Time:** Complex large parts in days instead of weeks/months with traditional methods. --- ### **Summary** **EOS MaragingSteel MS1** on the **EOS M 400-4** represents the **industrial benchmark for large-format, high-productivity additive manufacturing of ultra-high-strength components**. This system delivers the **geometric freedom of AM** at a **scale and speed** suitable for direct production of aerospace and industrial parts. The quad-laser configuration ensures **economic feasibility** for large parts and batch production, while the mature MS1 material system provides **predictable, wrought-like mechanical properties** after heat treatment. This combination is chosen by leading manufacturers to **produce large, complex, high-value maraging steel components** that are **lighter, more integrated, and faster to market** than those made with conventional manufacturing. It is a cornerstone technology for the **factory of the future** in aerospace, defense, and high-performance engineering sectors. -:- For detailed product information, please contact sales. -: EOS MaragingSteel MS1 DMSL on EOS M 400-4 Specification Dimensions Size： Diameter 20-1000 mm Length <7369 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: EOS MaragingSteel MS1 DMSL on EOS M 400-4 Properties -:- For detailed product information, please contact sales. -:

Applications of EOS MaragingSteel MS1 DMSL on EOS M 400-4 -:- For detailed product information, please contact sales. -: Chemical Identifiers EOS MaragingSteel MS1 DMSL on EOS M 400-4 -:- For detailed product information, please contact sales. -:

Packing of EOS MaragingSteel MS1 DMSL on EOS M 400-4 -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3840 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition