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Aug 31 2024
Geometric control of a secondary shaft

Geometric Inspection and Machining of a Shaft

A series of metrology operations was carried out on a crusher shaft, as part of a full inspection and follow-up process before and after corrective machining. These operations were conducted on-site, with the aim of recording the shaft’s initial geometric condition, performing targeted machining, and validating the final dimensions.

Measurements were conducted using a laser tracker, based on a reference system adapted to the shaft’s cylindrical geometry. Thermal conditions were taken into account, with value corrections applied to a standard reference temperature. A specialized metrology software was used to guide the measurement process and optimize data processing.

The intervention included several key stages:

  • Initial inspection of the shaft cylinders, distinguishing between previously machined and raw areas,

  • Machining setup, including the installation of a support ring for machine guides,

  • Orbital machining of the targeted surface,

  • And finally, a geometric validation check post-machining.

This comprehensive approach ensured restoration in compliance with specifications, providing rigorous dimensional traceability throughout all stages of the process—before, during, and after the intervention.

source LinkedIn

Intervention of 31 August 2024

TRACKER LASER

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Aug 27 2024
Control tubular bundles

Comparative Inspection of Two Mechanical Assemblies

A metrology inspection was carried out on two mechanical assemblies, one original and one newly manufactured, with the goal of performing a comparative dimensional analysis. The purpose of this operation was to verify the geometric conformity of the new component in relation to the original part.

Measurements were conducted on-site using a laser tracker, with both global and local reference frames established. This approach enabled precise analysis of the overall structure of the parts, as well as the positioning of key connection elements such as flanges and tubes.

The analysis revealed some geometric differences between the two assemblies, particularly in the relative positioning of the flanges and the overall length of the unit. These variations were interpreted in the context of the expected tolerances and the functional fit within the assembly environment.

The overall inspection confirmed the geometric compatibility of the new assembly, ensuring its proper integration into the designated installation.

Intervention of 27 August 2024

TRACKER LASER

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Aug 26 2024
Hot Tapping on Ammonia Water Networks

Execution of 10 Hot Taps on an Ammonia Water Network

As part of a large-scale technical operation, our teams carried out 10 hot taps on an ammonia water network, on headers ranging from DN200 to DN500.
The entire operation was conducted in a demanding environment—under pressure and at controlled temperature—with a high level of precision and safety.

We provided all fittings, including calculation notes, NDT inspections, gaskets, and bolting, in full compliance with the client’s technical specifications.

Hot taps were distributed as follows:

• 2 DN200 taps on a DN200 header
• 2 DN300 taps on a DN300 header
• 2 DN300 taps on a DN400 header
• 4 DN350 taps on a DN500 header

Each tap was preceded by a nitrogen tightness test to ensure system integrity. Our hot tapping machines were then mounted on full-bore valves to perform pressure drilling in a fully controlled manner.

This operation involved access constraints, heavy handling, and a sensitive environment (ammonia water at 68–75°C under 4 to 6.5 bar), and highlights our ability to efficiently operate on complex industrial installations, while meeting the highest technical and safety standards.

26 august 2024

HOT TAPPING

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Aug 22 2024
Geometrical control and adjustment of plates

Geometric Inspection and Adjustment of Mounting Plates

As part of an on-site intervention, a complete metrological inspection was carried out on two flanges of a gearbox (alternator side and turbine side) within the industrial environment of the Veolia Valbom unit in Bègles.

The objective of this operation was to check the flatness deviations of the flanges in their original position, record their altitudes, and perform the necessary adjustments through machining. The intervention took place in several phases: initial measurements, mechanical adjustment phase (using a milling arm), and final inspections after machining.

The measurements were carried out using a high-precision laser tracker, with corrections applied to account for the site’s thermal conditions. The surfaces were inspected according to a defined reference frame, ensuring consistency across all measurements.

Following the analysis and adjustment phases, the required values were provided to the machining teams, who made the necessary adjustments in accordance with the specified requirements. The geometry of the components was re-verified after the intervention, confirming compliance with expectations.

This type of service is part of a reliability approach for mechanical interfaces, ensuring precise assemblies optimized for operational performance.

source LinkedIn

Intervention of 22 August 2024

TRACKER LASER

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Aug 2 2024
Rotor control

Adjustment and Geometric Inspection of Rotor

A metrology inspection was carried out on the rotor as part of an on-site geometric alignment procedure. The main objective was to check the key dimensions of the assembly and verify the alignment of the poles.

The measurements were performed using a laser tracker, with a reference frame constructed around the axis of rotation, using the shaft journal as the origin. This reference system enabled precise analysis of the rotor’s geometric characteristics, including profiles, alignments, and the relationships between various sections.

Each pole was inspected at three different heights to assess the consistency of their positioning and to validate the uniformity of the radii. This work ensured precise adjustment of the assembly in line with the installation’s requirements.

The inspections confirmed the geometric compliance of the equipment. As a result, the rotor was successfully aligned and finalized under optimal conditions at the end of the intervention.

Intervention of August 2, 2024

TRACKER LASER

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