Testing Technician; Windsor

Metallographic Sample Preparation & Analysis

• Perform full‑process metallographic sample preparation including cutting, mounting, grinding, polishing, and etching.
• Conduct microstructural observation, grain size rating, phase content analysis, and defect identification (e.g., porosity, inclusions, cracks) using metallurgical microscopes.
• Analyze weld penetration depth, heat‑affected zone, and weld microstructure of welded joints.
• Prepare and archive metallographic specimens; maintain metallographic sample library.

• Operate and maintain Brinell, Rockwell, Vickers, and microhardness testers to perform hardness testing on metallic materials.
• Select appropriate hardness testing methods and loads based on material type and specification requirements.
• Perform gradient and cross‑sectional hardness testing (e.g., on welded joints, heat‑treated parts).
• Record and analyze hardness data to determine material heat‑treatment status and process conformance.

• Operate universal testing machines to perform tensile testing, obtaining ultimate tensile strength, yield strength, and elongation values.
• Perform other mechanical property tests in accordance with ASTM standards.
• Organize, analyze, and report test data.

• Perform daily calibration, maintenance, and upkeep of testing equipment.
• Maintain laboratory consumables inventory, including hardness test blocks, chemicals, polishing consumables, etc.
• Comply with laboratory safety procedures and 5S management requirements.
• Participate in internal laboratory audits and proficiency testing.

• Collaborate with production, process, quality, and engineering teams to support process validation and problem‑solving.
• Participate in failure analysis projects, providing metallographic and hardness testing support.
• Support material property validation required for PPAP submissions for new projects.

• Associate degree or equivalent;
  Bachelor's degree in Materials Science, Metallurgical Engineering, Mechanical Engineering, or related field preferred.
• 2+ years of experience in automotive manufacturing or materials laboratory.
• Proficient in the metallographic sample preparation process (cutting, mounting, grinding, polishing, etching) and operating metallurgical microscopes.
• Proficient in the operation and maintenance of Brinell, Rockwell, and Vickers hardness testers.
• Basic knowledge of universal testing machines, tensile testing, and other mechanical property test methods.
• Familiar with ASTM material testing standards (e.g., E3, E8, E10, E18, E92, E112, etc.).
• Proficient in Microsoft Excel, Word, and PowerPoint for data analysis and report generation.
• Detail‑oriented with positive documentation and communication skills.
• Ability to work rotating shifts and overtime; familiar with laboratory safety procedures.

• Experience in aluminum alloy material or weld metallography analysis.
• Familiarity with SEM/EDS (Scanning Electron Microscopy/Energy Dispersive Spectroscopy) operation.
• Experience in automotive parts industry (especially battery boxes, aluminum extrusions).
• Knowledge of ISO/IEC 17025 laboratory management systems.
• Relevant NDT (Non‑Destructive Testing) certifications.