DCI Aerotech

Non Destructive Testing (NDT) is an inspection method that does not permanently alter the article being inspected, making it a highly-valuable technique that can save both time and money in product evaluation, troubleshooting, and research.

DCI AEROTECH OFFERS THE FOLLOWING NDT INSPECTION METHODS

Liquid Penetrant Inspection (LPI) is based on capillary action, where low surface tension fluid penetrates into a clean and dry surface. Penetrant may be applied to the test component by dipping, spraying, or brushing. After adequate penetration time has been allowed, the excess penetrant is removed, and a developer is applied. The developer helps to draw penetrant out of the flaw allowing the indication to becomes visible to the inspector. Inspection is performed under ultraviolet or white light, depending upon the type of dye used.

Magnetic Particle Inspection (MPI) is used for the detection of surface and sub-surface defects in ferrous materials. An externally applied magnetic field or electric current is applied to the material. The iron oxide particles held in suspension are attracted to the surface field in the area of the defect and hold on to the edges of the defect to reveal it to the inspector. MPI can also be performed with dry particle allowing indications to be inspected under white light.

DCI AEROTECH OFFERS THE FOLLOWING SERVICES IN CONJUNCTION WITH NDT

Temper Etch Inspection is typically performed by chemically etching the component’s surface with a solution of nitric acid in alcohol or water. The etched surface is examined visually to detect detrimental microstructural modifications (e.g. untempered martensite) that result from overheating during improper surface grinding.

Pre-Penetrant Etch uses either acid or caustic solutions to remove 0.0001″ to 0.0002″ of material from the parts surface. This will allow the penetrant inspector to properly evaluate any surface indications that may have been hidden during the manufacturing process.

Passivation is a final treatment used after LPI or MPI to create a passive layer that is free from all contaminants, such as machine metal, that may cause corrosion or failure throughout the life of the component.

Since 1948, we have provided the aerospace industry with highly innovative, superior quality, industry-leading plating, coating, special processes and testing services.

DCI Aerotech’s superior quality services are designed to help the aerospace industry battle and combat metal fatigue, oxidation, corrosion, and wear in extreme and hostile environments. These include extreme temperatures, humidity, and other harsh conditions that threaten the mechanical integrity of the aircraft.

DCI Aerotech’s highly skilled and trained technical staff works closely with leading aerospace component manufacturers and FAA repair facilities to create engineered surface solutions to combat extreme environments that meet and/or exceed industry standards.

NADCAP ACCREDITED IN THE FOLLOWING AREAS:

• Specialty Chemical Processing  (AC7108 Rev. C and 7108/1 Rev. A)
• Conventional Machining as a Special Process (ID/OD Grinding with swings up to 120”, centers to 144”, and tolerance to 50 millionths of an inch)
• Surface Enhancement (7-Axis Robotic)
• Non Destructive Testing (MPI, LPI, FPI, Nital Etch, Temper Etch, Pre-penetrant Etch)
• Aerospace Quality System
• Thermal Spray – HVOF (Praxair JP 8000 with 7-axis Robot).

DCI Aerotech is a certified FAA Repair Station and is EASA Certified and AS9100D Accredited.

DCI Aerotech has positioned itself to be an industry leader by providing the aerospace industry with a “one stop surface solution center”  for many of the highly sought after surface treatments needed by the demanding aerospace industry.

DCI Aerotech takes great pride in being recognized by many of the aerospace industry’s leading primes and their suppliers as their go-to supplier for all their needs including  plating, coatings, surface treatments, testing services, and special processing.

Learn about the material and parts finishing processes DCI Aerotech provides →