Non Destructive Testing of Investment Castings

About Investment Casting Testing

To ensure reliable performance for application of investment castings, quality control is a vital step after investment casting production. A large number of methods have been developed to inspect castings for defects that may occur during their production. Such inspections may be in done during process inspections or finished product inspections. Process inspections are operated before all the castings have been completed , so that we can take corrective measures to remove the defect in the remaining units. Finished product inspections are carried out after investment castings have all been completely finished, which can make sure that our customers will receive the highest quality products.

For defective castings, we will selectively take remedial measure like welding repair, or completely reject investment castings to be re-melted for the reutilization of material according to the extent of defects. Normally, we divide investment casting inspection methods into destructive testing and non-destructive categories depending upon the magnitude of damage done to the casting during inspection. Destructive methods generally relate to sawing or breaking off of parts of the castings at places where voids or internal defects are easy produced. Castings may also be damaged during strength tests.

Non-destructive-testing of investment castings

Non Destructive Testing

However, non-destructive testing (NDT) is a highly valued method for inspecting investment castings without any damage of products. All the tests will not affect the further use of the products. Non-destructive testing is helpful and worthy for quality problem troubleshooting of our investment castings. CFS casting works with NDT testing companies as part of our quality assurance process, ensuring us to deliver investment cast components with highest quality.

Our NDT capabilities include:

  • X-Ray Examination–A kind of testing method to detect inner defects of investment castings
  • Magnetic Particle Inspection (MPI)–Opposite to X-ray, it is used to test outer defects of castings.
  • Hardness Testing–Mainly used to inspect the hardness of products, especially for investment castings with hardness requirement.
  • Dye Penetrant Inspection (DPI)–Also called liquid penetrant inspection (LPI) or penetrant testing (PT), is a widely applied and low-cost inspection method used to locate surface-breaking defects of products.

As a top investment casting supplier in China, we are able to do a broad range of tests to ensure that your products are dimensionally accurate and free from both internal and external defects. All of our products go through rigorous non-destructive testing will perform safely and reliably. Our partners are highly trained and certified technicians. They locate any discontinuities that may cause problems. For castings with defects, we will carry out weld repair if necessary. Our weld repair services can help to reduce scrap rates, maintain the required level of throughput and ultimately save money.

Contact us today for more information on our NDT services as well as other value added services, you will be impressed at our specialty. Just get in touch right now!