Homam A.

Experience

• Freelancer Mechanical Design Engineer H.M.E-Alhelwani-Engineering Office · Freelance Mar 2026 – Present 0 mos Germany Do you find it difficult to turn mechanical ideas into machines that perform reliably?
  I work with clients who need proven engineering solutions and want to avoid costly redesigns.
  
  You won’t just get 9+ years of experience—you’ll get a complete solution: you bring the idea, and I turn it into a working machine with a full manufacturing package (CAD models, production drawings, and BOM), plus prototype build support when needed.
  
  I don’t just create 3D models and assemblies on screen—I design manufacturable mechanical components that work together as a complete system, and I have hands-on experience overseeing fabrication, assembly, and testing.
  
  Expertise: custom machines and special-purpose equipment, product design, centrifugal pumps and rotodynamic machinery, prototype development, precision mechanisms, 3D modeling, tooling and production equipment, motion systems, parts, components, assemblies, mechanical components, CAD design, design for manufacturing (DFM), assembly, industrial machinery,CFD-based optimization of fluid machinery, FEA Analyse and everything in between.
  
  Typical deliverables for any project :
  • Complete CAD assemblies and system models
  • Production-ready part and assembly drawings in compliance with applicable standards
  • Detailed bill of materials (BOM) with referenced suppliers where applicable
  • Optional assembly guidance and documentation
  • Support during fabrication, assembly, and testing phases (as required)
  • Optional delivery of a validated prototype or tested machine
  • CFD simulation (if required)
  • FEA / structural analysis (if required)
  
  Send me a short overview of your project:
  • What are you building or improving?
  • Key constraints (space, budget, loads, timeline)?
  • What’s not working as expected (if applicable)?
  
  I’ll get back to you quickly to confirm whether it’s a good fit and outline the best next steps and approach.
  
  Visit our Website:
  https://hme-alhelwani.de/en
• CAD designer for customer-specific radial shaft seals and rubber molded parts VR Dichtungen GmbH · Full-time Aug 2023 – Jan 2025 1 yrs 5 mos Germany Overall responsibility for developing custom seals end-to-end: from requirements discussions and 3D design in Autodesk Inventor through drawings, bills of materials, and manufacturing support.
  
  
  Developed a mathematical model for elastomer dimensional changes (vulcanization, expansion onto the metal carrier, press-fitting into the housing bore) and built an Excel tool to determine stretch, press-fit, and shrinkage factors as the basis for correction dimensions of vulcanization tooling.
  
  
  Transferred these correction factors into parametric 3D tool models using iLogic: the designer enters only seal dimensions and factors; Inventor automatically updates mold geometry, drawings, and BOMs—significantly reducing design effort and lead times.
  
  
  Developed on-site vulcanization presses for marine propulsion systems as well as transfer molding tools for cost-effective seal production.
  
  
  Designed test rigs to measure leakage, friction torque, and wear under variable operating and pressure conditions; used results to optimize seal geometry.
  
  
  Geometrically optimized sealing lips (e.g., flank angle, contact width, back-side cavity design) to increase pressure capability, reduce wear, and lower drive losses.
  
  
  Contributed to seal variants with PTFE-coated lips to further reduce friction and operating temperature.
  
  
  Worked closely with manufacturing and external toolmakers from prototype phase through series readiness.