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Dependence of Steel Corrosion Rate on the Machining Emulsion Concentration

  • Vesna Alar , Ivan Stojanović und Bruno Židov
Veröffentlicht/Copyright: 26. Mai 2013
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Materials Testing
Aus der Zeitschrift Materials Testing Band 54 Heft 5

Abstract

In today's manufacturing, the emulsions for cooling and lubricating are an extremely important and necessary factor for the performance of machining processes. Depending on their composition, properties and production, emulsions in metal cutting operations have various technology functions such as lubricating the surfaces of the tools, facilitating the process of deformation of the cut layer, improving the quality of machined surface as well as cooling the tool and workpiece by removing the part of the heat created by deformation and friction. Corrosion protection of workpieces and tools during and after treatment is also one of the important functions of technological emulsions for cooling and lubricating. In this paper the effects of different concentrations of three emulsions on the corrosion rate of steel workpieces is reported. The results indicate that a higher concentration of emulsion does not provide better protection against corrosion.

Kurzfassung

In der heutigen Fertigung sind für die Effekti-vität von maschinellen Bearbeitungsprozessen die Emulsionen für Kühlung und Schmierung extre wichtig. Abhängig von ihrer Zusammensetzung, den Eigenschaften und der Herstellung haben Emulsionen in den Schneidprozessen verschiedene technologische Funktionen, wie zum Beispiel die Schmierung der Oberfläche der Werkzeuge, die Erleichterung des Deformationsprozesses der abgeschnittenen Lage, die Qualitätsverbesserung der bearbeiteten Oberfläche sowie die Kühlung des Werkzeuges und des Werkstückes durch Abfuhr der Wärme, die durch Verformung und Reibung erzeugt wurde. Der Korrosionsschutz der Werkstücke und Werkzeuge vor sowie nach der Behandlung ist auch einer der wichtigen Funktionen von Kühl- und Schmieremulsionen. Im vorliegenden Beitrag wird über die Effekte verschiedener Konzentrationen von drei Emulsionen auf die Korrosionsrate von Stahlwerkstücken berichtet. Die Ergebnisse der Studie deuten an, dass eine höhere Konzentration der Emulsion keinen besseren Schutz gegen Korrosion bietet.

Vesna Alar, born 1966, graduated at the Faculty of Chemical Engineering and Technology University of Zagreb in 1991. Since 1991 she has been working at the Department of Materials of the Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb. In 1994 she acquired the Master's degree at the Faculty of Chemical Engineering and Technology and the Doctor's degree in 2000 at the Faculty of Mechanical Engineering and Naval Architecture in Zagreb. The scientific work includes research in the field of corrosion and protection metals.

Ivan Stojanović, born 1979 in Pula, where he finished elementary and secondary technical school. He graduated Marine Machinery at the Faculty of Mechanical Engineering and Naval Architecture of the University of Zagreb in 2003. Since 2004 he has been working as science novice at the Chair of Materials Protection at the Faculty of Mechanical Engineering and Naval Architecture of the University of Zagreb. He successfully defended his Ph. D. thesis in January 2011 on the topic “Influence of technological parameters on corrosion protection properties of waterborne coatings”.

Bruno Židov, born 1988, acquired the Bachelor's degree at the Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb in 2011. At the time being he is fifth year student of Production Engineering at the same faculty. The scientific work includes research in the fields of corrosion processes and manufacturing systems.

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Published Online: 2013-05-26
Published in Print: 2012-05-01

© 2012, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. Experimental and Numerical Strategies to Consider Hole Eccentricity for Residual Stress Measurement with the Hole Drilling Method
  5. Rolling Contact Fatigue of Wheel and Rail
  6. Dependence of Steel Corrosion Rate on the Machining Emulsion Concentration
  7. Effect of Nanoclay Amount and Compatibilizer Presence on Thermal, Morphological and Mechanical Behaviour of Nanoclay Reinforced Composite Polypropylene Cast Film
  8. The Effect of the Retrogression Process on the Wear Behaviour of a 7075 Aluminium Alloy
  9. Effect of Curing Conditions on the Interface Strength of Single-Fibre Composite Specimens
  10. Detection of Defects in Natural Composite Materials Using Thermal Imaging Technique
  11. Characterization of Au-Ga Alloys with Low Gold Content
  12. Statistical Optimization of Gold Recovery from Difficult Leachable Sulphide Minerals Using Bacteria
  13. Determination of the Minimal Operating Temperature
  14. Kalender/Calendar
  15. Kalender
  16. Vorschau/Preview
  17. Vorschau
https://doi.org/10.3139/120.110334

Artikel in diesem Heft

  1. Inhalt/Contents
  2. Inhalt
  3. Fachbeiträge/Technical Contributions
  4. Experimental and Numerical Strategies to Consider Hole Eccentricity for Residual Stress Measurement with the Hole Drilling Method
  5. Rolling Contact Fatigue of Wheel and Rail
  6. Dependence of Steel Corrosion Rate on the Machining Emulsion Concentration
  7. Effect of Nanoclay Amount and Compatibilizer Presence on Thermal, Morphological and Mechanical Behaviour of Nanoclay Reinforced Composite Polypropylene Cast Film
  8. The Effect of the Retrogression Process on the Wear Behaviour of a 7075 Aluminium Alloy
  9. Effect of Curing Conditions on the Interface Strength of Single-Fibre Composite Specimens
  10. Detection of Defects in Natural Composite Materials Using Thermal Imaging Technique
  11. Characterization of Au-Ga Alloys with Low Gold Content
  12. Statistical Optimization of Gold Recovery from Difficult Leachable Sulphide Minerals Using Bacteria
  13. Determination of the Minimal Operating Temperature
  14. Kalender/Calendar
  15. Kalender
  16. Vorschau/Preview
  17. Vorschau
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