The file's text, extracted by GovTribe without its formatting.
Measurement Science and Engineering Department, 3D Metal Printer
1. INTRODUCTION
The Naval Surface Warfare Center (NSWC), Corona Division, Measurement Science Department, Code MS21 requires the purchase of one (1) Metal Additive Manufacturing (AM) Powder Bed Fusion Machine used for the research of AM processes to certify critical parts as well as the repair and manufacturing of special interface gages, weapon systems prototypes, and support equipment.
2. BACKGROUND
A Capital Improvement Program (CIP) at NSWC Corona has been awarded to purchase a Metal Additive Manufacturing Machine. This machine will be used for both Research into certifying critical parts necessary for the Navy to use this technology for critical applications, as well as for general machining and cost and time savings for operations at NSWC Corona. This AM Machine will be placed in the Measurement Science & Technology Laboratory (MSTL) at NSWC Corona. This machine will also be used to repair and manufacture special interface gages, support equipment, and prototypes for mission critical weapon systems while reducing costs and increasing production efforts.
3. SCOPE
The scope of this proposal is the complete purchase installation of all equipment and materials necessary to operate a Metallic Powder Bed Fusion process within NSWC Corona.
4. APPLICABLE DOCUMENTS
| Document Type |
| No./Version |
| Title |
| Date |
GSA
| FED-STD-313 |
| Hazardous Materials Management (HAZMAT) https://www.gsa.gov/cdnstatic/FED-STD-313E.pdf |
| Jul 2014 |
GOV
| FAR 23.3 |
| Material Safety Data Sheets (MSDS) https://www.acquisition.gov/?q=browsefar |
| Jan 2018 |
5. REQUIREMENTS
The following is a synopsis of the requirements requested by NSWC Corona for the integration of a Metallic Powder Bed Fusion machine at NSWC Corona.
| Machine Requirement |
| Part Description |
General
Metal AM System with an ATEX explosive atmosphere certification, with a minimum build envelope of 250 mm x 250 mm x 350 mm (x,y,z) to operate reactive and non-reactive powder materials including Maraging Tool Steel, Stainless Tool Steel, Aluminum, Titanium, and Inconel. Dual industry standard continuous laser, glove box insert, movable process chamber, open architecture, access for sensor integration above build chamber, unlimited operator contact with metal powder, and unexposed material containers. Approved for use of third party materials to use within the machine, active dual laser meltpool monitoring, expansive and cost effective customer support, FAA certified part support, part accuracy of ±.003 inches and surface finish of Ra 177 and 275 µin.
| Max Envelope Machine |
| Height:90” Width: 110” Depth:75” |
| Power Supply |
| Max Power Supply 3/N/PE AC 400V |
| Materials |
| Software Capability for Maraging Tool Steel, 316 SS, GD-AlSi10Mg, TiAl6V4, and Inconel 625. |
| Powder |
| Minimum 250kg of Maraging Tool Steel, 316 SS, and GD-AlSi10Mg, 50 kg of Inconel 625, 50 kg of TiAl6V4 |
| Laser Scanning Speed |
| Minimum Scanning speed 7 m/s, 4.5 m/s for variable focus move |
| Layer Thickness |
| Maximum Layer thickness 80µm |
| Production Speed |
| 2 - 20 cm3/h (depending on material / laser power) |
| Power Consumption |
| Maximum power consumption 9 kW |
| Furnace |
| Furnace to provide heat-treatment and stress relief for parts in an inert gas atmosphere. Voltage of 400V. 50Hz. Minimum furnace dimensions, 350 mm x 500 mm. 250 mm. Minimum Volume of 41 liters. Should include gas box, manual gas fitting, charging plate, charging cart, temperature display, hardening foil, and hardening tongs, gloves. |
| Wet Separator Vacuum |
| Wet Separator Vacuum to remove excess powder from the build chamber and safely passivate the powder in the receiver tank filled with fluid. Minimum Air flow 130m3/h, Fluid Volume, 7 liters. |
| Laser Power Measurement |
| Equipment used to measure, standardize and compare the laser power and various positions in the process chamber used to ensure uniform power distribution through the entire build platform |
| Clamping System |
| Palletizing system to finish traditionally prefabricated parts |
| Micro Bead System |
| Bead blasting system used for post processing part surfaces |
| Powder Exchange Container (Master) |
| Inert Filtration Exchange System, Minimum tumbler diameter of 400mm. |
| Powder Exchange Container |
| Additional Inert Filtration Exchange System, Minimum tumbler diameter of 400mm. |
| Powder Sieve |
| Powder sieve to filter powder |
| Additional Sieve |
| Additional Sieve for a minimum of 60 micrometer sieving capability |
| Powder Container Shelf |
| Storage for powder exchange containers. Minimum 500kg load bearing. |
| Extended Dose / Powder Chamber |
| Powder chamber offering extended period of sieving |
Nitrogen Generator
For use of non-reactive materials such as maraging tool steel, a Nitrogen Generator shall provide a minimum inlet pressure of 6 bar
| Wear Parts |
| Minimum of 20 Steel, Plastic, and Rubber Recoater blades |
| Build Plates |
| 10 Steel Build plates, 5 build plates in Aluminum and Titanium |
| Powder Sieve |
| Powder sieve to filter powder |
| Additional Sieve |
| Additional Sieve for a minimum of 60 micrometer sieving capability |
| External Sieve Station |
| External sieve station with extra-large sieve area and small mesh size up to minimum of 45 μm under an inert gas atmosphere |
| Raster Software |
| Providing raster software Materialise to allowing industry adopted capability of developing Machine Laser Raster Path |
| Intuitive Programming |
| Intuitive Program System to guide operator through the steps of machine programming. |
| Training |
| Provide Training for Standard usage of the machine including all safety procedures, troubleshooting, powder exchange and handling of reactive powders, and real time monitoring. |
| Installation |
| Installation of the machine into the government facility |
| Shipping |
| Machine and all additional equipment shipped to government facility |
Pre Installation Site Visit
Site visit vendor for facility inspection for appropriate installation of Machine and supplemental equipment
| Lifting Device |
| Provide lifting and transportation device for material loading |
| Item Unique Identification Tag (IUID) |
| IUID tag plate per MIL-STD-130x |
| Blasting Cabinet |
| Blasting Cabinet ( incl. blasting media ) used to secure powder material for combustion protection |
| Extended Dose Powder Chamber |
| An Extended Dose Powder Chamber that will allow for excess powder to be used in the printing process. |
| Building Chamber Reduction Kit |
| The building chamber reduction kit provides the user a reduced build chamber to use less powder when building items in the build chamber. 80mm x 80mm Maximum dimensions for reduced chamber size. |
| Reduced Chamber Building Plate |
| Maximum dimension 80mm x 80mm size building plate for reduced size builds |
| Powder Lift |
| Electrical Lifting device used to load and unload Powder chambers inside the machine |