Radiographic Testing in Automotive Manufacturing: What It Finds, What It Misses, and What Governs It
What RT is actually used for in automotive manufacturing
Safety-critical castings — steering knuckles, suspension components — are radiographed on sampling plans tied to process control.
How RT works
Radiography passes X-rays or gamma radiation through the component onto film or a digital detector. Density differences in the image reveal what the material contains — porosity, slag, lack of fusion, and the internal geometry of a weld — producing the one thing no other method gives: a permanent, reviewable image of the volume examined.
What RT will not do
What RT will not do reliably: find tight planar defects lying perpendicular to the beam, because a crack with no measurable width casts almost no shadow. It also requires access to both sides, controlled radiation areas that shut down surrounding work, and licensed sources — which is why RT is scheduled around the plant rather than the plant around RT.
The automotive manufacturing assets this applies to
Powertrain castings and forgings, structural body components and their joints, safety-critical suspension and steering parts, and increasingly battery-system enclosures.
The damage mechanisms driving the examination
Casting and forging soundness, weld and joint integrity at production rates, and fatigue performance of safety-critical components.
What governs acceptance
IATF 16949 quality-system requirements and OEM specifications drive the examination programme; production volume makes automation and cycle time as important as detection capability. On the method side: ASME Section V Articles 2 and 22 for technique; ASME Section VIII and B31.3 for acceptance; API 1104 for pipeline girth welds; ISO 17636 in international scopes. An examination that is technically sound but performed outside the governing regime is not an examination anyone will accept, which is why the code family matters as much as the technique.
How Atlantis delivers RT in this sector
Atlantis mobilises examination teams to your site under Atlantis procedures with ASNT Level III oversight — we do not claim a depot or laboratory in every market, and say so plainly. What you receive is the examination performed to a qualified procedure, findings evaluated against the acceptance criteria your contract names, and records structured to survive a client audit years later.
Radiographic Testing services · RT training and certification · Automotive Manufacturing NDT training · scope a RT examination.
RT in other sectors
Refining · Petrochemical · LNG · Offshore · Pipeline · Marine & Shipbuilding.