Dependence of Steel Corrosion Rate on the Machining Emulsion Concentration
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Vesna Alar
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.
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© 2012, Carl Hanser Verlag, München
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- Kalender
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Articles in the same Issue
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Experimental and Numerical Strategies to Consider Hole Eccentricity for Residual Stress Measurement with the Hole Drilling Method
- Rolling Contact Fatigue of Wheel and Rail
- Dependence of Steel Corrosion Rate on the Machining Emulsion Concentration
- Effect of Nanoclay Amount and Compatibilizer Presence on Thermal, Morphological and Mechanical Behaviour of Nanoclay Reinforced Composite Polypropylene Cast Film
- The Effect of the Retrogression Process on the Wear Behaviour of a 7075 Aluminium Alloy
- Effect of Curing Conditions on the Interface Strength of Single-Fibre Composite Specimens
- Detection of Defects in Natural Composite Materials Using Thermal Imaging Technique
- Characterization of Au-Ga Alloys with Low Gold Content
- Statistical Optimization of Gold Recovery from Difficult Leachable Sulphide Minerals Using Bacteria
- Determination of the Minimal Operating Temperature
- Kalender/Calendar
- Kalender
- Vorschau/Preview
- Vorschau