Introduction
Fatigue testing is a non-negotiable quality step in spring manufacturing. Whether you’re building automotive valves, medical syringes, or aerospace components, your spring must withstand millions of repeated stress cycles. At MSP Micro Spring Products in Chennai, we make sure every spring we deliver is fatigue-tested and production-ready.
What Is Fatigue Testing?
Fatigue testing exposes a spring to cyclical stress and strain—repeating compressions or extensions—to simulate how it behaves over time.
Over 90% of mechanical spring failures are caused by fatigue, not overload. (Spring Engineers of Houston)
Fatigue testing is essential for:
– Safety-critical parts like brakes, injectors, or surgical tools
– Product lifespan validation before mass production
– Material and design optimization
Wikipedia – Fatigue (Material)
How MSP Performs Fatigue Testing
At MSP, our in-house testing system simulates real-world wear conditions based on:
– Load frequency (RPM or Hz)
– Environmental factors (humidity, temperature)
– Cycle count requirements (from 100,000 to 10 million+)
Every spring goes through:
- Design Simulation
– Software tools like Spring Design by Hexagon
- Prototype Cycle Testing
– Springs tested with real-load stress machines
– Adjustments made for fatigue life, pitch, coil count, and wire diameter - Batch-Wise Quality Inspection
– Random samples from each production batch go through:
– Load vs. deflection tests
– Life cycle testing
– Dimensional & surface quality inspection
Learn more: Our Quality Assurance Process
Why Fatigue Testing Helps YOU (the Buyer)
- Zero Defect Reliability
Useful in automotive spring assemblies and medical implants
Automotive Spring Components – Tevema
Medical Device Spring Fatigue – Advanex
- Cost Reduction
– Optimize spring size to reduce material waste
– Avoid over-specification - Total Traceability
– Lot IDs with fatigue data
– ISO 9001 and IATF 16949 compliance
Tools and Materials We Use
Materials: SS302, SS304, Music Wire, EN 47, Nimonic
Surface finishes: Shot peening, zinc plating, black oxide
Standards followed:
ISO 6892-1 – Tensile testing of metals
DIN 2095 – Compression springs tolerance
Let’s Build Springs That Last
Want fatigue-tested springs that meet exact performance standards? MSP Micro Spring Products ensures:
– Consistent performance under stress
– Total lifecycle analysis
– Traceable manufacturing from raw coil to packed box
