Metrological lab services

During the whole process of overhaul of elements and sub-assemblies of the aircraft engine measurements are performed to confirm correctness of execution of individual operations. To perform measurements, universal measuring tools as well as special tools and instruments are applied. In special situations measurements are performed using coordinate measuring machines (CMM). Measurements are realized using spindles equipped with touch probes or using the telecentric camera. Rooms for performing inspections are equipped with air conditioners assuring maintaining constant temperature and humidity conforming to requirements.

The metrological laboratory exists in WZL-4 since 1951, initially as the Chamber of Measurements, then the Central Metrological Laboratory at Lotnicze Zakłady Remontowe Nr 4 in Warsaw (this name was in force until 1982).

At present the Company Metrological Laboratory of Wojskowe Zakłady Lotnicze Nr 4 S.A. (since 2008) operates in the framework of internal management and control system. It controls monitoring and measuring devices and instruments applied in production processes.

Monitoring and measuring instruments applied for inspections and tests are conforming to obligatory legal requirements, are calibrated in domestic and foreign accredited laboratories and acknowledged national institutions.

 

Detailed information

WZL-4 has experienced, competent employees performing verification of measuring devices, and tests in the following workshops:

  1. The Workshop of Measurements of Slip Gauges,
  2. The Workshop of Measurements of Length and Angle,
  3. The Workshop of Measurements of Pressure and Temperature,
  4. The Workshop of Measurements of Electric Tools,
  5. The Workshop of Measurements of Electronic Tools,
  6. The Workshop of Measurements of Force Tools and Mechanical Properties of Materials,
  7. The X-ray Defectoscopy Workshop,
  8. The Chemical Workshop.

 

The offer for verification of devices, performing tests and chemical analyses

 

The Workshop of Measurements of Slip Gauges

  • Slip gauges made of steel, rectangular cross-section class 1 , class 2 (measurement range from 0,5 mm to 100 mm).

 

The Workshop of Measurements of Length and Angle

  • Dial gauges of the measurement range up to 100 mm,
  • mechanical.

Micrometer devices:

  • external micrometers of the measurement range from 0 mm to 1000 mm,
  • internal micrometers of the measurement range from 5 mm to 55 mm,
  • two-point bore gauges,
  • three-point bore gauges,
  • depth gauges,
  • micrometer heads.

Micrometer sensor devices:

  • transameters,
  • micrometers with built-in sensor,
  • bore gauges with dial gauges.

Vernier caliper devices:

  • calipers,
  • height measuring instruments.
Feeler gauges, plug gauges.
Digital and analog protractors.
Squares, measuring rules, v-grooves.

 

The Workshop of Measurements of Pressure and Temperature

  • Analog and digital instruments for measuring pressure of the range from -0,9 MPa to 40 MPa:
  • utility spring manometers,
  • inspection spring manometers,
  • vacumometers,
  • altimeters WD-20,
  • pressure converters.

 

Instruments for measuring temperature

Analog and digital of the range from 30 °C to 150 °C (ultrathermostat); from 30 °C do 500 °C 
(calibration oven):

  • measuring instruments – thermometers, resistance thermometers, and with thermos-elements,
  • resistance temperature regulators, and with thermos-elements,
  • resistance temperature recorders, and with thermos-elements,
  • utility thermometers verified using the comparison method,
  • manometric thermometers,
  • resistance thermometers sensors,
  • thermo-elements.

 

The Workshop of Measurements of Electric Tools

The range of measurements: current to 20 A; voltage to 1000 V; resistance to 1000 MΩ.

Analog and digital instruments for measuring electric properties:
  • calibrators U,I AC,DC,
  • multimeters U,I,R,
  • measuring instruments U,I,
  • measuring instruments, testers of insulation,
  • resistance boxes,
  • AC,DC power supplies.

 

The Workshop of Measurements of Electronic Tools

Analog and digital instruments for measuring electronic properties:
  • calibrators U,I AC,DC,
  • multimeters U,I,R,
  • measuring instruments U,I,
  • measuring instruments, testers of insulation,
  • resistance boxes,
  • AC,DC power supplies,
  • monitoring and measuring consoles:
    • PKTR-3,
    • PKR-88,
    • UPT-U.
  • instruments for measuring of the frequency of pulses:
  • IczI-2,
  • IczI-4.

 

The Workshop of Measurements of Force Tools and Mechanical Properties of Materials

Manual dynamometer tools:
  • torque wrenches from 0,5 Nm to 1000 Nm,
Testing of hardness using the method of:
  • Brinell,
  • Vickers.
Measuring of strength:
  • tensile tests,
  • testing of slings, traverses.
 Impact tests using the method of:
  • Charpy

 

The X-ray Defectoscopy Workshop

Making radiograms on the radiographic film or in digital form of soldered and welded connections of wires, aircraft elements and other materials.

 

The Chemical Workshop

Manufacturing of glues, seals, pastes, and chemical analyses connected with overhaul of the aircraft elements and sub-assemblies.

Shortened analyses of:
  • aviation fuel,
  • oils for the aircraft engines,
  • acid, chromium and cyanide-alkaline galvanic bathes.