BreitbahnDED spotlight
Wide-bead DED, productivity and large-area deposition.
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Technical articles for LMD buyers and evaluators.
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The content plan separates visitor intent by repair economics, surface protection, large-part manufacturing, quality evidence, DfAM/OEM work and procurement readiness.
Research stream
Use research projects as proof for advanced technical topics.
BreitbahnDED, EIS-KW, monitoring and functionally graded materials give technical evaluators a reason to see Exafuse as a process-development partner, not only a supplier.
EIS-KW project page
Forging-tool research around cooling, heat management, additive tooling and wear evaluation.
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A single destination for project proof, R&D themes and pilot discussion.
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A01
Article
Repair vs Replace for High-Value Metal Parts: A Decision Framework
Repair is worth evaluating when the part is expensive, has long replacement lead time, has localized damage, and can be inspected after material buildup. Replacement is usually safer when th...
Repair vs replaceRFQ and buying
A02
Article
Laser Cladding for Wear Protection: When It Beats Conventional Coatings
Laser cladding is strongest when a component needs a dense metallurgical layer on a defined wear or corrosion zone. It is less suitable when a very thin cosmetic coating, large low-cost area...
Wear and corrosion
A03
Article
What Is Laser Metal Deposition (LMD) and When Should Industrial Buyers Use It?
Laser Metal Deposition, or LMD, is a metal additive manufacturing process in which a laser creates a local melt pool and metal powder is fed into that melt pool. The process can build materi...
Metal AM route
A04
Article
LMD vs SLM (PBF): A Practical Process-Selection Matrix for Industrial Metal Parts
LMD and SLM solve different industrial problems. LMD or DED is usually stronger for large parts, repair, local buildup, and laser cladding, while SLM or PBF is usually stronger for compact p...
Metal AM routeQualification
A05
Article
Repair ROI Model: How to Quantify Downtime, Machining, and Validation Costs
Repair ROI is not only the price of deposition versus a new part. It includes avoided downtime, replacement lead time, machining and post-processing, inspection cost, logistics, and the risk...
Repair vs replaceRFQ and buying
A06
Article
LMD for Large Metal Parts: Bead Width, Deposition Efficiency, and Productivity
Large-part LMD is not just a scaled-up version of a small coupon build. For large components, productivity and quality depend on the interaction between bead width, overlap strategy, heat ma...
Metal AM route
A07
Article
Procurement Guide: What to Include in an RFQ for Laser Cladding or LMD Repair
A useful RFQ for laser cladding or LMD repair should include service intent, part dimensions and weight, base material, damage or wear description, target property, tolerances, deadline, ava...
RFQ and buying
A08
Article
Lead-Time Playbook for Plants: How On-Demand Repair Reduces Critical-Spare Risk
Plants reduce critical-spare risk by identifying high-value, long-lead-time parts before failure, documenting repair acceptance criteria, and pre-qualifying LMD or laser cladding as a fallba...
Repair vs replaceRFQ and buying
A09
Article
Porosity in LMD/DED: Root Causes, Detection, and Practical Prevention
Porosity in LMD and DED is not a cosmetic detail. It is a quality risk that can affect bonding, local properties, release confidence, and the inspection route a buyer needs for a given part...
Qualification
A10
Article
Metallurgical Validation for Laser Cladding: Bonding, Dilution, Microstructure, HAZ
Metallurgical validation for laser cladding should prove that the deposited layer is bonded correctly, that dilution is acceptable for the job, and that the resulting microstructure and heat...
QualificationWear and corrosion
A11
Article
Inspection Stack for Industrial Repairs: CT, UT, PT/MT, CMM - What Each Proves
No single inspection method proves everything on a repaired part. Visual checks, dimensional inspection, penetrant or magnetic testing, ultrasonic methods, CT, hardness checks, and metallogr...
QualificationRepair vs replace
A12
Article
Monitoring and Control in DED/LMD: What In-Process Signals Mean for Quality
In-process monitoring in DED and LMD can help track whether the build is behaving consistently, but it does not replace final inspection or qualification. The value of monitoring is that it...
Qualification
A13
Article
Alloy Selection for Laser Cladding: Fe-, Ni-, and Co-Based Options and Tradeoffs
Alloy selection for laser cladding should start with the failure mode, the base material, and the service environment, not with a powder brand name. Fe-, Ni-, and Co-based overlays each solv...
Wear and corrosion
A14
Article
Corrosion and High-Temperature Protection: How to Choose Cladding Materials
Cladding materials for corrosion or high-temperature service should be selected from the actual exposure environment, not from hardness alone. The key inputs are the media, temperature range...
Wear and corrosion
A15
Article
Functionally Graded Materials with DED/LMD: When a Gradient Outperforms a Single Alloy
Functionally graded materials use a controlled transition between material compositions instead of one abrupt interface. In DED and LMD, that can be technically attractive when a single allo...
DfAM and OEMQualification
A16
Article
Design-for-Repair: How OEMs Can Add Repair Pads and Wear Allowances Upfront
Design-for-repair means planning sacrificial wear zones, repair pads, access surfaces, machining allowance, material compatibility, and inspection access before the part ever enters service.
DfAM and OEMRepair vs replace
A17
Article
Design for Additive Manufacturing with LMD: Geometry Rules that Reduce Machining and Risk
Design for Additive Manufacturing with LMD should focus on reliable near-net deposition, manageable heat input, and accessible finishing, not on powder-bed-style fine detail. Good DfAM for L...
DfAM and OEM
A18
Article
Hybrid Manufacturing: Combining LMD and CNC Machining to Hit Tolerances on Large Parts
Hybrid manufacturing with LMD and CNC is often the practical route for large industrial parts. LMD adds material where it creates value. Machining, grinding, heat treatment, and surface prep...
Metal AM routeDfAM and OEM
A19
Article
LMD Toolpath Strategy for Repairs: Overlap, Heat Management, and Geometry Challenges
Repair toolpaths in LMD have to solve a real damaged geometry, not an ideal coupon. That means overlap, heat accumulation, access, machining allowance, and the transition back into the origi...
Repair vs replaceQualification
A20
Article
Qualification and Documentation: What Buyers Should Ask for in LMD/Laser Cladding Projects
Buyers should ask for process scope, material compatibility, inspection plan, acceptance criteria, post-processing route, nonconformance handling, documentation package, and project-specific...
RFQ and buyingQualification
A21
Article
Research Spotlight: BreitBahnDED and Why Wider Beads Matter for Industrial Productivity
BreitBahnDED is a publicly funded research project for developing wider weld beads in Laser Metal Deposition, also known as DED-LB/M or Laserauftragschweissen. The industrial question is sim...
DfAM and OEMMetal AM route
A22
Article
LMD for Hard-to-Machine Alloys: When Additive Beats Subtractive for Large Components
LMD becomes attractive for hard-to-machine alloys when the part is large, the raw material is expensive, and only selected geometry needs to be added or rebuilt. Exafuse's public material pr...
Metal AM routeWear and corrosion
A23
Article
Digital Spare Parts for Plants: A Practical Path from CAD to Qualified On-Demand Supply
A digital spare is useful only when the part data, material, manufacturing route, inspection plan, and acceptance criteria are ready before the plant needs the part. LMD can be one route for...
Repair vs replaceRFQ and buying
A24
Article
Failure Modes to Cladding Solutions: A Wear Mechanism to Alloy to Inspection Map
The right cladding solution starts with the failure mode, not with a favorite alloy family. Abrasion, erosion, adhesive wear, corrosion, oxidation, thermal fatigue, and impact each point tow...
Wear and corrosionQualification
A25
Article
Exafuse 2024 Year in Powder: What 1,850 kg+ of LMD Material Says About Industrial Capability
In 2024, Exafuse publicly reported more than 1,850 kg of material deposited through Laser Metal Deposition work. More than 1,600 kg was 316L stainless steel, with around 250 kg across advanc...
Wear and corrosionMetal AM route
A26
Article
From Metal Powder to Functional Drill in 24 Hours: What Rapid LMD Prototyping Can Prove
Exafuse has publicly shown a rapid LMD proof story: a functional drill, described publicly as a "Bombenbohrer," produced from metal powder with an antimagnetic coating in under 24 hours. The...
Wear and corrosionMetal AM routeQualification
A27
Article
750 mm Water-Cooled Nozzle by Multi-Material LMD: What Thin-Wall Nickel-Alloy Builds Prove
Exafuse has publicly shown a complex 750 mm water-cooled nozzle design manufactured by Laser Metal Deposition with two Ni-based alloys: Inconel 625 for the inner structure and Inconel 718 fo...
Wear and corrosionMetal AM routeQualification
A28
Article
Valve Seat Ring Laser Cladding: Crack-Controlled Wear-Resistant Coating by LMD
Exafuse has publicly shown a valve seat ring coating workflow using Laser Metal Deposition (LMD): preheating in an oven, controlled application in the LMD machine and a wear-resistant coatin...
Wear and corrosionMetal AM routeQualification
A29
Article
How to Evaluate Forging Hammer Repair with LMD: Fit, Limits, and RFQ Data
Forging hammer repair with Laser Metal Deposition (LMD) is worth evaluating when damage is local, the base hammer is still usable, oxides and cracks can be handled, and the rebuilt working f...
Repair vs replaceWear and corrosionMetal AM route
A30
Article
How to Evaluate LMD Build-and-Coat Workflows: Geometry, Surface Function, and Validation
An LMD build-and-coat workflow is worth evaluating when a metal part needs both geometry creation and a functional surface layer. The route should be reviewed as one manufacturing chain: par...
Wear and corrosionMetal AM route
A31
Article
LMD Coatings on Copper Substrates: Heat Management, Preheating, and Validation
Laser Metal Deposition (LMD) coatings on copper or copper-alloy substrates need a different review than standard steel cladding. Copper conducts heat quickly and can reflect laser energy, so...
Wear and corrosionMetal AM routeQualification
A32
Article
Large Structural LMD for Bridge Components: Lessons from the Duisburg Bridge Project
Large structural Laser Metal Deposition (LMD) is not only a larger print job. It is a full engineering route that connects CAD redesign, deposition strategy, parameter development, monitorin...
Metal AM routeQualificationDfAM and OEM
A35
Article
Melt-Pool Monitoring in Laser Metal Deposition: What Process Images Can and Cannot Prove
Melt-pool monitoring gives earlier visibility into LMD process behavior, but it is not a standalone quality certificate. It supports process understanding when image signals are connected to...
QualificationMetal AM routeDfAM and OEM
A36
Article
AI in Laser Metal Deposition Process Control: From Decision Support to Closed-Loop Claims
AI can support LMD process control when model outputs are tied to validated signals, clear action limits and inspection evidence. The important distinction is between decision support, param...
QualificationMetal AM routeDfAM and OEM
A37
Article
Image Processing with Neural Networks in LMD: Where Pix2Pix-Style Models Fit
Pix2Pix-style neural networks can support LMD image-processing research by translating process images into more useful visual representations, but generated outputs must be validated against...
QualificationDfAM and OEMMetal AM route
A38
Article
Crack-Risk Control for Hard Co-Based LMD Coatings on Ring Geometries
Hard Co-based LMD coatings on ring geometries need more than a powder selection. Geometry, preheating, layer strategy, powder-feed direction, travel-speed review and dye inspection decide wh...
Wear and corrosionQualificationRFQ and buying
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For cases where the problem is clear but the service, process or next step is still open.
Decision toolCompare LMD, SLM or hybridScreens size, detail level, existing-part context, finishing and risk before a manufacturing request.
Material screenScreen alloy directionStarts from wear, corrosion, temperature, base material and target surface.
Cost screenScreen base cost driversHelps frame dimensions, material family, quantity and process assumptions early.
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Move from the current topic into the closest service, proof page, technical article, FAQ or feasibility request.
Buyer education to RFQ
Article readers move from education into proof and a qualified inquiry.
ArticleA07: Procurement Guide: What to Include in an RFQ for Laser Cladding or LMD RepairArticleA20: Qualification and Documentation: What Buyers Should Ask for in LMD/Laser Cladding ProjectsFAQFAQ08: Procurement FAQ: RFQs, Supplier Qualification, and DocumentationCase studyCS12: 24-Hour Inconel 718 Coating Repair for an Undersized SpindlePageFeasibility request
Procurement
Download the RFQ logic, then request a quote
A good RFQ reduces scope drift. Send service type, part size, material, deadline, tolerances, files and documentation needs.
Start qualified RFQTechnical education to validation
Technical readers move into quality and inspection alignment.
ArticleA09: Porosity in LMD/DED: Root Causes, Detection, and Practical PreventionArticleA10: Metallurgical Validation for Laser Cladding: Bonding, Dilution, Microstructure, HAZArticleA11: Inspection Stack for Industrial Repairs: CT, UT, PT/MT, CMM - What Each ProvesCase studyCS15: Duisburg Bridge Components with LMD: 750 kg+ Nodes and Handrails from CAD to Validated ProductionArticleA32: Large Structural LMD for Bridge Components: Lessons from the Duisburg Bridge ProjectCase studyCS14: Turbo Generator Rotor Wedge Coating with LMD: Heat-Controlled CuNi2SiCr on Copper SubstrateArticleA31: LMD Coatings on Copper Substrates: Heat Management, Preheating, and ValidationFAQFAQ05: Quality and Inspection FAQ: Porosity, CT, NDT, and MetallurgyPageQuality
Quality alignment
Align on inspection and documentation before production
For projects where acceptance criteria, porosity risk, metallography, hardness or buyer documentation will decide the route.
Request validation planResearch education
Research readers move into BreitbahnDED, monitoring and pilot feasibility.
PageResearch & projectsArticleA21: Research Spotlight: BreitBahnDED and Why Wider Beads Matter for Industrial ProductivityArticleA12: Monitoring and Control in DED/LMD: What In-Process Signals Mean for QualityArticleA15: Functionally Graded Materials with DED/LMD: When a Gradient Outperforms a Single AlloyArticleA27: 750 mm Water-Cooled Nozzle by Multi-Material LMD: What Thin-Wall Nickel-Alloy Builds ProvePageFeasibility request
Metal AM
Request a process-selection feasibility review
Send CAD, material, approximate size and target finish. Exafuse can review whether LMD, SLM or a hybrid route is the practical process path.
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