AvtoVAZ spoke about a multi-level control system for Lada body welding. The inspection is carried out at different stages of production: specialists evaluate the body geometry, measure inter-flange gaps, selectively check weld points with ultrasound, and at the final stage, compare the finished structure with a three-dimensional digital model.

The body is assembled from stamped parts. After this, it undergoes multi-level control. Specialists use both visual inspection and instrumental methods.

Control is carried out in two modes: linear and selective. This approach allows assessing the quality of welded joints and ensuring that the body geometry remains stable, the company said.

One of the stages is checking geometric parameters. Special gauges and measuring tools are used for this. This checks the quality of assembly of elements such as lights, radiator grille, headlight unit, and other parts. At the same time, the inter-flange gaps of the body are measured.

Separate ultrasonic inspection is carried out. This is a selective diagnosis of weld points using a flaw detector. This method allows assessing the condition of more than 4500 weld points.

At the final stage, the body is checked in the laboratory. The finished structure is compared with a three-dimensional digital model using an automated coordinate measuring machine. This way, specialists check how much the real body corresponds to the specified parameters.