Use of Surfactants in Metal Cutting Fluids Formation

2014 ◽  
pp. 278-301 ◽  
Keyword(s):  
Metal Cutting ◽  
Cutting Fluids

Investigations of Tool Wear with Water Vapor as Coolant and Lubricant in Green Cutting

2011 ◽  
Vol 317-319 ◽  
pp. 556-559
Author(s):  
Yue Zhang ◽  
Tong Jiang ◽  
Li Han ◽  
Qi Dong Li ◽  
Tai Li Sun ◽  
...  
Keyword(s):  
Water Vapor ◽  
Tool Wear ◽  
Metal Cutting ◽  
Boundary Layer Theory ◽  
Cutting Fluids ◽  
Potential Solution ◽  
Dry Cutting ◽  
Lubricating Film ◽  
Study Results ◽  
Generating System

Green cutting is one of the developing tends in the industry field. Water vapor can be introduced in metal cutting as coolant and lubricant due to its pollution-free, generating easily and unneeded disposal. Therefore, a special generating system is developed to produce suitable water vapor, and a simulation to the velocity of water vapor jet flow is presented. Then tool wear was investigated and a new capillary model is proposed, based on the experimental results. According to the boundary-layer theory, the kinetics equations of flow were solute. The velocity and flux of molecule are presented. In the capillary, the adsorption of tool-chip interface results in boundary lubricating film; the conical shape of capillary limits the depth of coolant and lubricant penetrating; and the negative press is the motility for coolant and lubricant penetrating. The study results show water vapor can decrease tool wear about 10% times and 20% comparing to cutting fluids and dry cutting, and water vapor could be a potential solution of green cutting.

scholarly journals Investigation of the Cutting Uid'S Ow and its Thermomechanical Effect on the Cutting Zone Based on Uid-Structure Interaction (FSI) Simulation

2021 ◽  
Author(s):  
Hui Liu ◽  
Markus Meurer ◽  
Daniel Schraknepper ◽  
Thomas Bergs
Keyword(s):  
Metal Cutting ◽  
Negative Impact ◽  
Orthogonal Cutting ◽  
Fluid Simulation ◽  
Cutting Fluid ◽  
Cutting Fluids ◽  
Thermomechanical Effect ◽  
Dimensional Simulation ◽  
On Chip ◽  
Cutting Processes

Abstract Cutting fluids are an important part of today's metal cutting processes, especially when machining aerospace alloys. They offer the possibility to extend tool life and improve cutting performance. However, the equipment and handling of cutting fluids also raises manufacturing costs. To reduce the negative impact of the high cost of cutting fluids, cooling systems and strategies are constantly being optimized. In most existing works, the influences of different cooling strategies on the relevant process parameters, such as tool wear, cutting forces, chip breakage, etc., are empirically investigated. Due to the limitations of experimental methods, analysis and modeling of the working mechanism has so far only been carried out at a relatively abstract level. For a better understanding of the mechanism of cutting fluids, a thermal coupled two-dimensional simulation approach for the orthogonal cutting process was developed in this work. This approach is based on the Coupled Eulerian Lagrangian (CEL) method and provides a detailed investigation of the cutting fluid’s impact on chip formation and tool temperature. For model validation, cutting tests were conducted on a broaching machine. The simulation resolved the fluid behavior in the cutting area and showed the distribution of convective cooling on the tool surface. This work demonstrates the potential of CEL based cutting fluid simulation, but also pointed out the shortcomings of this method.

Study on the treatment of waste metal cutting fluids using electrocoagulation

2008 ◽  
Vol 60 (3) ◽  
pp. 285-291 ◽  
Author(s):  
M. Kobya ◽  
C. Ciftci ◽  
M. Bayramoglu ◽  
M.T. Sensoy
Keyword(s):  
Metal Cutting ◽  
Cutting Fluids

scholarly journals A Novel Experimental Test Bench to Investigate the Effects of Cutting Fluids on the Frictional Conditions in Metal Cutting

2020 ◽  
Vol 4 (2) ◽  
pp. 45 ◽  
Author(s):  
Thomas Lakner ◽  
Marvin Hardt
Keyword(s):  
Experimental Test ◽  
Metal Cutting ◽  
Test Bench ◽  
Cutting Fluid ◽  
Cutting Fluids ◽  
Machining Processes ◽  
Workpiece Material ◽  
Fluid Supply ◽  
Frictional Forces ◽  
Experimental Test Bench

The tribological effect of cutting fluids in the machining processes to reduce the friction in the cutting zone is still widely unknown. Most test benches and procedures do not represent the contact conditions of machining processes adequately, especially for interrupted contacts. This results in a lack of knowledge of the tribological behavior in machining processes. To close this knowledge gap, a novel experimental test bench to investigate the effects of cutting fluids on the frictional conditions in metal cutting under high-pressure cutting fluid supply was developed and utilized within this work. The results show that there is a difference between the frictional forces in interrupted contact compared to continuous contact. Furthermore, the cutting fluid parameters of supply pressure, volumetric flow rate, and impact point of the cutting fluid jet influence the frictional forces, the intensities of which depend on the workpiece material. In conclusion, the novel test bench allows examining the frictional behavior in interrupted cuts with an unprecedented precision, which contributes to a knowledge-based design of the cutting fluid supply for cutting tools.

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