Co-founder and managing director

Dr Julian Krell

Dr Julian Krell is co-founder and managing director of Exafuse in Bochum, Germany. A materials engineer with a doctorate from Ruhr University Bochum, he assesses material, feasibility and project scope for industrial additive manufacturing enquiries.

Profile

Assessing material, feasibility and project scope together

Julian Krell, material scientist and managing director at Exafuse

Dr Julian Krell

Co-founder, managing director and materials engineer

Bochum, Germany

Dr Julian Krell is co-founder and managing director of Exafuse in Bochum, Germany. A materials engineer with a doctorate from Ruhr University Bochum, he assesses material, feasibility and project scope for industrial additive manufacturing enquiries.

His materials background informs the assessment of base and deposited materials, heat input, wear, finishing and the evidence required for a component.

Focus areas

Engineering responsibility from initial review to project scope

Material selectionMaterial selection for laser metal deposition, repair and wear protection.
Part and process assessmentAssessment of heat input, wear, finishing and the evidence required for the part.
Feasibility and scopeTechnical feasibility review and the commercial scope needed for a reliable quotation.
Large-part projectsProject leadership for large components, including the published Duisburg pedestrian bridge project.

Publications

Articles and case studies by Julian Krell

Julian Krell’s articles cover material selection, component repair and the technical assessment of LMD projects.

  1. RFQ Checklist for Laser Cladding and LMD RepairTechnical article · May 2026
  2. Selecting Material Families for Wear, Corrosion, Oxidation and HeatTechnical article · May 2026
  3. Duisburg Bridge Components: More Than 750 kg Produced with LMDCase study · April 2026
  4. Repair Cost Comparison for LMD RepairsTechnical article · April 2026
  5. Example: Why SLM Fits Compact Internal-Channel GeometryTechnical article · March 2026
  6. How the LMD vs SLM Decider WorksTechnical article · February 2026
  7. Mining-Machine Dozer Blade Holder LMD Hardfacing CaseCase study · February 2026
  8. How to Choose the Right Starting Point for an Exafuse ProjectTechnical article · January 2026
  9. 24-Hour Inconel 718 Coating Repair for an Undersized SpindleCase study · January 2026
  10. Gear, Pinion and Toothed-Part Repair: When LMD Is Worth EvaluatingCase study · September 2025
  11. 130 mm Drill: LMD Build-Up and Functional CoatingCase study · August 2025
  12. Forging Hammer Repair and Coating with LMDCase study · July 2025
  13. Valve Seat and Wear Ring LMD Coating for Wear-Resistant SurfacesCase study · April 2025
  14. How Exafuse Develops LMD Coatings with Metallography, SEM/EDX and Hardness ChecksTechnical article · March 2025
  15. Exafuse 2024 Year in Powder: What 1,850 kg+ of LMD Material Says About Industrial CapabilityTechnical article · December 2024
  16. Turbo Generator Rotor Wedge Coating with LMD: Heat-Controlled CuNi2SiCr on Copper SubstrateCase study · November 2024
  17. LMD Metal Powder Test-Wall Screening CaseCase study · November 2024
  18. Repair ROI Model: How to Quantify Downtime, Machining, and Validation CostsTechnical article · June 2024
  19. Research Spotlight: BreitBahnDED and Why Wider Beads Matter for Industrial ProductivityTechnical article · June 2024
  20. LMD Part Modification and Feature Addition CaseCase study · June 2024
  21. Hot-Forming Die and Tooling LMD Hardfacing ReviewCase study · June 2024
  22. Research Topic: Detecting and Reducing Porosity Risk in LMDCase study · May 2024
  23. Large Cylindrical Part LMD Cladding with Process VideoCase study · May 2024
  24. Laser Cladding for Wear Protection: When It Beats Conventional CoatingsTechnical article · March 2024
  25. Nobufil Extrusion Screw Repair: Short-Lead-Time LMD Rebuild of a Cracked Stub ShaftCase study · December 2023
  26. 750 mm Multi-Material LMD Nozzle Demonstrator CaseCase study · May 2022
  27. Inconel 718 Thin-Wall LMD Demonstrator CaseCase study · February 2022
  28. 3 kW Helical Impeller Metal 3D Printing Prototype CaseCase study · January 2022
  29. Functionally Graded LMD Pipe DemonstratorCase study · October 2021

Direct contact

Talk to Julian Krell directly

Questions about material, feasibility or scope? Julian Krell answers personally. Send a drawing or photograph, the material and your goal. Confidential documents can follow after an NDA.

Request a feasibility check