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AGGRESSIVE MACHINING EVALUATION SERVICES

MICROSTRUCTURAL EXAMINATIONS OF SURFACE AND SUBSURFACE DAMAGE FROM NON-OPTIMIZED MACHINING CONDITIONS

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One of the most critical reliability issues in aircraft engines and other subsystems is fatigue. The high stress and vibration in these systems can cause cracks that propagate once initiated. A primary contributor in crack initiation is the quality of the surfaces left behind from machining operations.

During the manufacturing process, improper material feeds, speeds, or dulled tooling can leave high stress areas where cracks can initiate. These very small defects can result in distortion in the microstructure, which can lead to failure of the part or component, resulting in premature repair or replacement.

IMR Test Labs has the ability to perform the high precision sample preparation needed to be able to resolve the subtle near surface distortion and damage characteristic of non-optimal machining conditions, as well as a number of highly trained and experienced metallographers in our New York and Singapore laboratories. This allows us to meet your schedule needs even on large programs.

aggressive-machining-samples-2Some of the defects include

  • Laps and tears
  • Grain distortion
  • White Layer
  • Strain Lines

Manufacturers of critical components such as disks, blisks, blades and shrouds rely on the skill and expertise of the team at IMR Test Labs. Contact us today to learn more.

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Related Metallurgical Analysis Methods

Grain Size
Intergranular Attack
Intergranular Oxidation
Light Microscopy - Macro, Micro & SEM
Orientation in Microstructure
Phase Volume Determination
Prior Austenitic Grain Boundary Determination
Replication (ASTM E1351)
Quantitative Image Analysis
SEM Analysis
Surface Evaluation (Dubpernell Active Site Test ASTM B456 Appx 4)
Surface Topograph

RELEVANT ACCREDITATIONS

Pratt & Whitney 7b

Click here for a complete list of accreditations and certifications for all IMR Test Labs locations.