...Soumya Subramonian; Nimet Kardes; Yurdaer Demiralp; Milan Jurich; Taylan Altan Lubrication is one of the process variables that affect the quality of stamping sheet materials. Using a good lubricant can significantly reduce scrap rate and/or improve the quality of stamping. In this study, different...

... of tribological pairings. It provides an appropriate tribological model test to evaluate tribological measures like coatings, surface textures and lubricants with respect to their targeted application in particular zones. The obtained results can be employed in the layout of further forming processes to reach...

.... The dynamometer appears to be exploitable for higher frequencies up to at least 16 kHz though a large number of factors must be taken into account in the analysis. Finally, several lateral milling tests are performed by changing cutting speed, feed rate, and lubricant conditions. The correction of measurements...

... viscosity are observed to increase the evaporation rate. It is concluded that a fluid with low surface tension and low viscosity is an effective coolant of the cutting zone, whereas a fluid with low surface tension and high viscosity is effective for lubrication. A faster evaporating liquid implies...

... of effective lubricants for tube hydroforming due to widespread application of this process. This paper presents an analytical model of the guiding zone tribotest commonly used to evaluate lubricant performance for tube hydroforming. Through a mechanistic approach, a closed-form solution for the field...

...Lin Yang; Rajiv Shivpuri Lubricants in hot forging are applied to the heated die surface by spraying dilute water based graphite suspensions through high-pressure nozzles. To avoid undesirable steam formation, these lubricant droplets need to completely dry before deformation begins. This paper...

...L. Yang; R. Shivpuri Dilute sprays are used in hot die processing to lubricate and cool the die surface prior to forming of the part. These sprays are often stochastic in nature with fine droplets that are randomly deposited at high velocities. Consequently, the spraying mechanism is difficult...

..., but they are partially effective within a narrow working range; recent studies also indicate their polluting nature. Solid lubricant assisted machining is a novel concept to control the machining zone temperature without polluting the environment. Solid lubricant, if employed properly, could control the machining zone...

...M. H. Greeley; R. E. DeVor; S. G. Kapoor; N. Rajagopalan This paper discusses the influence of metalworking fluid management policy and operational changes on metalworking fluid functionality in terms of lubricating and cooling ability. Several important pathways for metalworking fluid depletion...

... components from nickel-based superalloys 3 . One process parameter, which has recently received much attention, is the lubricant (coolant) choice for the grinding operation. Water-based coolants are slowly replacing oil-based fluids for creep-feed grinding of aerospace alloys with electroplated CBN...

... Mar 2003 01 Feb 2004 07 09 2004 cutting lubricants coolants fluid dynamics turning (machining) drops sprays Part 1 of this paper outlined the benefits and concerns associated with the use of cutting fluid and the development of an analytical model that includes the mist...

... September 2002 07 09 2004 metalworking coolants lubricants microemulsions filtration membranes particle size scanning electron microscopy recycling Sustainable aqueous systems minimize life cycle environmental impact by 1) minimizing the materials, energy, and toxicity of system...