Inspection of Cylinder Blocks Using Image Based Techniques

Bore holes of cylinder blocks have to be manufactured not alone with high dimensional accuracy, but also free from any surface defects. So appropriate NDT methods have to be applied, capable of detecting tiny cracks, pores etc. Additionally - in order to ensure a long operating life - the quality of the wear protection layer (with embedded Si-particles) has to be examined. The test system is fully integrated into the production line. Due to an automized inspection and by using imaging eddy current technique the system provides a high throughput (cycle time ~25 s / cylinder block) and a complete process visualization and quality documentation.

Features

  • used sensors: 2-channel-rotors
  • wear protection for increased probe’s operating life
  • rotational speed 1000 rpm
  • reliable detection of tiny surface cracks and pores (< 1 mm)
  • fully automated calibration by means of an integrated reference block (located in park position)
  • qualified for series production due to the excellent sensitivity, reproducibility and high test speeds
  • in order to minimize the wear of the inner cylinder surface a minimum content of Si-particles within the structure is needed (homogeneously distributed)
  • eddy current testing completely replaces the previous test methods (visual inspections and spot-check microscopy)
  • ScanAlyzer software package: covering data acquisition, data evaluation and documentation (Windows-PC)
  • defect characterization: maximum defect size, defect geometry and defect position
  • calculation of quality classification numbers
  • on-line evaluation for each test channel
  • sophisticated process visualization (e.g. test results, inspection statistics, system status)

System Data

  • test station (6 spindles rotating simultaneously)
  • 6 measuring computers, controlled by the host-PC
  • ScanAlyzer software
  • 6 eddy current instruments PL-320
  • rotary indexing table (decoupling feeding/inspection)

Eingesetzte Produkte

Für weitere Informationen oder eine konkrete Angebotsanfrage, klicken Sie bitte hier:
Anfrage starten:

Dillinger manufactures technologically outstanding and versatile heavy plates at the traditional Saar location. References in a wide variety of application areas are available worldwide. Especially for pipeline applications, the HST test procedure developed by ROHMANN supports the precision and consistently high quality of Dillinger products. Dillinger Hütte

Eisenwerk Brühl GmbH specializes in the development and mass production of cast iron engine blocks for the automotive industry. The company is one of the most important suppliers of cast iron ZKG for the passenger car sector. To secure the production process, i.e. for the detection of material defects, hand and line testing devices from ROHMANN are used. Eisenwerk Brühl GmbH

As a subsidiary of the Etihad Aviation Group, the company offers services in the areas of line, light and heavy maintenance. The largest service provider for commercial aircraft in the field of maintenance, repair and operation in the Middle East, uses both the ELOTEST M2 handheld tester and the ELOWHEEL 1000 rim tester (RPT16) for inspecting their aircrafts. Etihad Airways Engineering

Stüken is the world market leader for deep-drawn components, punch and deflection parts of maximum precision and reliably high quality. For automated quality assurance, i.e. for the detection of material and structure defects, Stüken uses line testing equipment, e.g. the ELOTEST PL600 from ROHMANN. Hubert Stüken GmbH & Co. KG

Lufthansa Technik offers a complete service for aircraft technical services, such as maintenance, overhaul and testing of engines and chassis. In addition to the robot-based ELOSCAN test systems, Lufthansa Technik AG also uses sensors and portable test equipment from ROHMANN at several locations in Germany. Lufthansa Technik AG

NKT is a well-established and global supplier of turnkey DC and AC cable systems, providing world-class energy transport with innovative cable solutions. To ensure the quality of its own products, NKT uses the line tester ELOTEST IS500 from ROHMANN. NKT Group GmbH

Siemens Power Generation Services provides worldwide service solutions for gas or steam turbines, generators or wind turbines to increase the efficiency, reliability and operational flexibility of plants. In its global maintenance services, the company uses a.o. the ROHMANN handheld tester ELOTEST M3. Siemens

As a traditional aviation manufacturing and maintenance company, Zeppelin offers professional QM services to the global aviation industry, the automotive industry and mechanical and plant engineering. For the aerospace sector, Zeppelin carries out ZFP training courses using ROHMANN handheld testers Elotest M3, test probes and calibration standards. Zeppelin Systems GmbH

ZF is a leading global technology group in driveline and chassis technology as well as active and passive safety technology. ZF uses a wide range of innovative solutions from ROHMANN for various testing tasks in the field of crack and structural testing. ZF Friedrichshafen AG