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Inventions 2017, 2(4), 27;

Grinding Fluid Jet Characteristics and Their Effect on a Gear Profile Grinding Process

Stiftung Institut für Werkstofftechnik (IWT), Badgasteiner Strasse 3, D-28359 Bremen, Germany
MAPEX Center for Materials and Processes, University of Bremen, Bibliothekstrasse 1, D-28359 Bremen, Germany
Author to whom correspondence should be addressed.
Received: 26 September 2017 / Revised: 19 October 2017 / Accepted: 20 October 2017 / Published: 25 October 2017
(This article belongs to the Special Issue Modern Grinding Technology and Systems)
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Profile gear grinding is characterized by a high level of achievable process performance and workpiece quality. However, the wide contact length between the workpiece and the grinding wheel is disadvantageous for the fluid supply to the contact zone and leads to the risk of locally burning the workpiece surface. For the reduction of both the thermal load and the risk of thermo-mechanical damage, the usage of a grinding fluid needs to be investigated and optimized. For this purpose, different kinds of grinding fluid nozzles were tested, which provide different grinding fluid jet characteristics. Through a specific design of the nozzles, it is possible to control the fluid flow inside the nozzle. It was found that this internal fluid flow directly influences the breakup of the coolant fluid jet. There are three groups of jet breakup (“droplet”, “wave & droplet”, and “atomization”). The first experimental results show that the influence of the jet breakup on the process performance is significant. The “wave & droplet” jet breakup can achieve a high process performance, in contrast to the “atomization” jet breakup. It can therefore be assumed that the wetting of the grinding wheel by the grinding fluid jet is significantly influenced by the jet breakup. View Full-Text
Keywords: profile gear grinding; grinding fluid; grinding fluid nozzle; jet breakup profile gear grinding; grinding fluid; grinding fluid nozzle; jet breakup

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Geilert, P.; Heinzel, C.; Wagner, A. Grinding Fluid Jet Characteristics and Their Effect on a Gear Profile Grinding Process. Inventions 2017, 2, 27.

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