QUALITY CONTROL

At Accurate, the philosophy of total quality management dictates our commitment to product standards and customer satisfaction. This dedication and persistence have made us an ISO 9001:2015, ISO 14001:2015, BS OHSAS 18001:2007 certified company. 

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CERTIFICATIONS
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Our state-of-the-art Quality Assurance labs is facilitated with machines such as Torsion Spring Tester machine, Universal Load Testing machines, UTS testing, and Fatigue Testing machine, Salt Spray Tester, Profile Projectors, etc.
After the completion of the manufacturing process, the products are tested to satisfy the customer of the standard quality of goods produced. The springs undergo rigorous testing at Accurate because we do not compromise with the deliverables. Springs are complex and varied; therefore, there are multiple testing processes involved. The Torsion Spring Tester Machine is used to check the torque on torsion springs. Compression springs and extension springs are subjected to the pressure of varying magnitudes, hence the load on them is tested using the Universal Load Testing Machine. UTS Testing is done to check the tensile strength of the springs. We are firm believers in the fact that our products must be robust. Thus, we use the Fatigue Testing machine to ensure that the manufactured products are highly durable. The testing process is not just subjected to these attributes. We also ensure that the coating on the springs is of the desired quality. The Salt Spray Tester is used for validating the quality of surface plating. These labs are designed to meet customers’ demands with products that satisfy national and international standards leaving a commendable impression on the customer’s mind. Misconceptions in Inspection
  1. Error in counting of active / total coils in a spring.
  2. Determine the direction of coil in a spring.
  3. Machine to machine load variation.
  4. Checking difference in outer diameter / inner diameter due to burr.
  5. Less deflection between two load lengths cause differences in readings.
  6. Buckling of compression springs while checking load.
  7. Compression spring getting solid near load length may have erratic readings .
  8. Consideration of powder coating thickness.
  9. Reduction in inner diameter of torsion spring will have erratic torque readings.
  10. Error in checking due to shifting of machines and improper leveling & calibration.
  11. Difference in checking due to person to person, machine to machine.
  12. Load length very near to free length can have incorrect reading.
Reasons for Failure of Springs
  1. Wrong raw material selection & spring getting over stressed
  2. Bad working environment & temperatures.
  3. Bad corrosion substance in work station.
  4. Tool marks during bending of spring.
  5. No proper fixture for assembly of spring. Hammering on spring for assembly.
  6. Wrong selection of hook for tension spring.
  7. Improper heat treatment.
  8. Friction of spring with assembly parts in working condition.
  9. Hydrogen Embitterment during plating.
  10. Thin grinding of spring can create breakage.
  11. Stretching of spring beyond limit.
  12. Dynamic application (uses) of spring.
  13. Allowance of assembly part tolerances.
  14. Reduction of inner diameter of torsion springs in working.
  15. Increase of outer diameter of compression springs in working.
  16. Improper storage of springs in stores.
  17. Un-clear drawing or drawing in different language may miss some important comments.
  18. Spring getting solid in working

Our Quality Control Facilities

  1. TORSION SPRING TESTER M/C
  2. UNIVERSAL TESTING MACHINE
  3. UNIVERSAL TESTING MACHINE
  4. UNIVERSAL TESTING MACHINE
  5. PROFILE PROJECTOR
  6. PROFILE PROJECTOR
  7. LOAD TESTING M/C
  8. UTS TESTING M/C
  9. FATIGUE TESTING M/C