Synthetic Machining Fluid

This formulation is ideal for machining carbon steel, brass, bronze, copper, aluminum and stainless steel. 

Concentration 20% Aqueous solution Direct Load Scale 3000 lbs. 

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A grinder test was developed to correlate the mist reduction observed in the spray pattern analysis test with an actual metalworking operation. Both a semisynthetic which contains 10% emulsified oil and a synthetic metalworking fluid which contains no mineral oil, were used during the machining of steel bar stocks. 

The amount of aerosol mist was established for the baseline synthetic metalworking fluid and was assigned the value of 0% mist reduction. The synthetic metalworking fluid was additized with 1000 ppm of a 1 million MW PEO polymer. In this fluid, this PEO polymer caused a 100% increase in mist within minutes upon addition to the machining operation (Figure 5). Treatment of this metalworking fluid with 1000 ppm of the 300,000 MW PEO polymer caused a 60% increase in the amount of mist. 

The synthetic metalworking fluid was additized with 1000 ppm of Polymer D and which provided an immediate 60% reduction in mist and this was maintained throughout the 1.5 hr of machining (Figure 5). 

Metalworking fluids contain mineral oils (refer to p. 80) or synthetic lubricants they are used neat or in admixture with water. They may contain small amounts of biocides, stabilizers, emulsifiers, coiTosion inhibitors, fragrances and extreme pressure additives. The formulations render them suitable for application to metal being worked, generally from a recirculatory system, to provide lubrication, corrosion protection, swarf removal and cooling of the tool and machined surface. 

All these problems directly affect production efficiency. Recent developments have led to the introduction of synthetic lubricants that are fully compatible with all types of water-based cutting fluids, so helping the user to achieve maximum machine output. 

The shift from straight oils to synthetics has resulted mainly from machine improvement and increased restrictions on the disposal of oil and grease. Thus, metalworking fluids have been modified with water to minimize disposal problems and with chemicals to preserve the fluids and to accom modate higher speeds while increasing tool life. 

Suda S, Yokota H, Inasaki I, Wakabayashi T (2002) A synthetic estra as an optimal cutting fluid for minimal quantity lubricatirai machining. Ann CIRP -Manuf Technol 51(l) 95-98... 

Synovial fluid in joints has such low friction that engineers are trying to duplicate it synthetically to lubricate machines. 

The differences in mist suppression performance for the polymer types tested may be attributed to either the solubility variations of the polymers in the two types of metalworking fluids and/or to interactions of the polymer with components in the metalworking fluid. PEO polymers had initial mist suppression performance in the 10% semisynthetic fluid even though there was a loss in performance after short time period of machining. However, in synthetic fluids these polymers generated more mist than the baseline. The solubility of the PEO polymers in these fluids was not determined therefore, it can not be ascertained whether the polymers were in solution... 

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