Although metal removal fluids is a more specific term, these fluids are most often referred to by the generic term metalworking fluids. Fire may occur when the melting point of the alloy 400600 degrees celsius is exceeded during machining. Since 1968, specmaster has been an industry leader in machining a variety of complex parts from magnesium. Familiarize yourself with each machines coolant gauge. Based on results obtained in the field, as well as tests performed in the laboratory, the formulation of hangsterfers coolants has provided excellent results on magnesium machining. Magnesium is the third most commonly use structural metal after iron and aluminium and historically has been used in applications including german aircraft during world war 1. So, ph and alkalinity work hand in hand to dictate some fluid characteristics. High speed machining of magnesium and its alloys sciencedirect. Ss 210al is a new generation semisynthetic coolant formulated for high performance machining without the use of chlorine containing materials. Additives react favorably during machining to provide additional lubricity in the cut. Magnesium has very good machining abilities like sawing, punching, drilling, milling, turning. Alphasyn t high performance, fully synthetic lubricants designed for use in central lubricating. Jun 14, 2006 alcoholbased coolant offers environmentally friendly machining this microvolume coolant delivery system uses ethanol as the cooling medium for nonferrous workpieces.
In her opinion some of the machine coolants sold as safety machine coolants are actually worse than non safety machine coolants. In other words some machine coolants are sold with the claim that they. Characteristics of metalworking fluids the importance of ph. Coolants for challenging cuts cutting tool engineering. Highspeed tools or carbide tipped tools are preferred for the machining of magnesium. Pdf methods for prevention of ignition during machining. These fluids are complex mixtures of oils, detergents, surfactants, biocides, lubricants, anticorrosive agents, and other potentially toxic ingredients. For many years the machining of magnesium alloys has been carried out safely and efficiently without the need for coolants or cutting fluids. It is becoming much more common that cast and fabricated magnesium alloy parts will undergo cnc machining. Our skilled machinists have years of experience and an extensive knowledge of various machining strategies to produce your magnesium components. Machine coolant health and safety carbide processors. But some applications demand more than a goodquality coolant or lubricantsome processes and materials require specialty products. Competitive coolants use dcha and other additives, which are less expensive but of questionable safety. Although the corrosion of pure magnesium in commercial coolants has been reported 9,31, in practice, an engine block cannot be made of pure magnesium, and the coolant cannot be pure ethylene glycol.
Coolants in the composite machining process rhenus lub. The following list of safety precautions and machining tips for machining magnesium are recommended in conjunction with normal safety practices. Never use water based coolant because of the risk of any reaction with the. Magnaloycouplingcompany technicalproductinformation couplings thepossibilityoffirewhenmachiningmagnesiumisalwaysarealconcern. Other than that, the pollution of the environment and reclamation of chips cannot be resolved quickly when using coolants during machining process. Though coolants can be used effectively to prevent ignition, the pollution of. Developing a safer way to machine magnesium machining magnesium is risky business, as the chips and dust generated are flammable. Magnesium is the lightest structural metal with a high strengthtoweight ratio. Semisynthetic coolants machining coolants texas coolants. Castrols versatile range of synthetic coolants satisfies machining requirements while reducing coolant use.
Please give us a call, 440 5439845, or complete the form to contact us with any questions or requests regarding etnas line of machining coolants and industrial metal cutting oils. Magnesium metal 7439954 99 100% all concentrations are percent by weight unless ingredient is a gas. Machining coolants are an important component of metal working operations. Most machining of magnesium alloys is done dry,but cutting fluids sometimes are used for cooling the work. Brighton labs coolants are formulated for a broad range of machining applications and materials including aluminum. The metalworking or processing of magnesium and alloys of magnesium requires specific knowledge of the material properties and proper safety precautions. Yag laser welding system was employed to clad single beads on machined 6.
Specifications of aluminum machining coolants include 1. These fluids are those used in grinding, cutting, boring, drilling, and turning metal. Optimization of machining parameters for magnesium alloy. We have products designed to give longlife when machining modern magnesium alloys, coolants with low cobalt leaching potential and therefore suitable for carbide and hard metal grinding. When operator health is a concern, there is no reason to compromise. Coolants improve machinability, increase productivity and extend tool life by cooling and lubricating the part and cutting. Safety and health topics metalworking fluids safety and. How to avoid easy burning and explosion when cnc machining. It is suitable for all metals, but has been designed especially for use with aluminum. Without the correct coolant, machines break down, and prior to that happening, product quality suffers. Our products provide superior cooling, cleanliness and. Show this safety data sheet to the doctor in attendance. Waterbase cutting fluids are cheaper and better coolants, and also. If when necessary to use coolant, a light mineral oil will suffice.
The main concern in machining magnesium alloy is the danger of fire ignition when dry cutting. Therefore, this paper will give a general introduction to the mechanical processing technology and safe operation procedures of magnesium alloy diecast parts for reference. Save time and money by filtering your machine coolant. At the same time, the special flushing properties of the coolants keep the machine rooms cleaner. The information given is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a warranty or quality specification. Machine coolants have been used extensively in metal cutting operations for the last 200 years. All coolants, however, contain additives that enhance lubricity, inhibit rust and most bacteria growth, or reduce foaming. Developing a coolant maintenance program for machining. The small chips and fine dust generated during cutting are also highly flammable and pose a serious fire risk if not properly handled. The machining industry is no stranger to the words coolant and swarf. Where coolants are desired, only mineral oil based cutting fluids should be used. Magnesiumbased sheet metal processing in the precision parts.
Alcoholbased coolant offers environmentally friendly machining this microvolume coolant delivery system uses ethanol as the cooling medium for nonferrous workpieces. The following list of safety precautions and machining tips for machining magnesium are recommended in. In other words some machine coolants are sold with the claim that they dissolve less machine coolant and they dissolve more machine coolant. Brighton laboratories full product line of machining coolants were developed for the machining and grinding of all ferrous and nonferrous metals. Never use water based coolant because of the risk of any reaction with the chips during storage. Magnesium machining is normally done without any coolant. In machining of magnesium alloys, waterbase cutting fluids can be effectively used to eliminate the buildup formation and minimize the possibility of chip ignition. In her opinion some of the machine coolants sold as safety machine coolants are actually worse than nonsafety machine coolants. Machining, magnesium, hydrogen abstract in machining of. In the industrial sector, some oems require the use of silicated coolant, while others require silicatefree for heat transfer concerns. Magnesium machining practices and precautions magnaloy. The ethanol evaporates after it cools the cutting tool, so no residue is left behind on machined workpieces.
Safety and health topics metalworking fluids safety. Request a sample andor safety data sheet sds please use this form to request product samples and safety data sheets sds for etna machining fluids. A class d ansul metal fire fire extinguisher should be in the immediate vicinity of the machining activity. Methods for prevention of ignition during machining of magnesium. Magnesium is a material commonly used in the aerospace and automotive industries because it is the lightest structural metal. When taking fine cuts, use a mineral oil coolant to reduce heat buildup. Magnesium fire safety as im sure you all know magnesium fires can be pretty serious especially when shavings are involved. Occasionally, lard, animal fat or whale oil was added to improve the oils lubricity. Metallurgical considerations for machining magnesium alloys jstor. Among the most important are extreme pressure additives, commonly known as ep, and include chlorine, sulfur and phosphorus. But the oil in the filters inside the trimist coolant. Aluminum machining coolants machining coolants dr lubricants machining coolants are formulated to perform a variety of general and specialty machining operations. Water base oilinwater emulsion coolants used with other metals, have.
An expertly developed, customformulated metalworking fluid, manufactured by a specialty chemical company with. In the beginning, machine coolants consisted of simple oils applied with brushes to lubricate the machine tool. Machining of magnesium and magnesium alloys asm digital library. Manufacturing with a 3 axis milling machine creates parts and components, and it generates heat. The advanced machines used in metal cutting processes usually produce waste materials in the form of mists and chips. A research consortium has developed a novel way to extract. Fovac designed an entirely new way of thinking about lubricating and cooling metalworking operations.
Therefore, a safe cutting speed can be estimated by cutting the color of the oxide. When machining magnesium dry, flank buildup due to adhesion between cutting tool and workpiece can occur at cutting speeds of vc 900 mmin and more for uncoated and tincoated cemented carbide. Our skilled machinists have years of experience and an extensive. Raysol 4260p is used for light to medium severity machining on all metals except magnesium. It is suitable for all metals, but has been designed. Available in several different base, fovac coolants lubricates and cools dramatically better than. Our processes are designed for a broad range of substrates such as steel, iron, cast iron, copper, brass, aluminum, alloys and composites. Over the years, semisynthetic machining and grinding coolants have compiled an inconsistent service record and earned a reputation for performing well, but just not well enough. In the beginning, machine coolants consisted of simple. Other than that, the pollution of the environment and.
Using coolants binds the dust together perfectly, improving health and safety conditions and ensuring maximum acceptance of the process among process owners and machine operators. We are looking into an automatic fire detection and. Amatrols principles of coolants and oils elearning courseware mxpt202 introduces the fundamentals of the major types of coolants and oils used in manufacturing. But as with a lot of flows, it does have buildup in crevices on the way to the feeder and piles of magnesium do accumulate. Based on results obtained in the field, as well as tests performed in the laboratory, the formulation of. Such as process and safety issues, this is because most of the domestic magnesium alloy cnc machining, diecasting enterprises contact magnesium alloy for the first time. A research consortium has developed a novel way to extract magnesium particles out of the machine by vacuuming them through a hollow tool and spindle during machining.
Corrosion of magnesium mg alloys in engine coolants. Where coolants are desired, only mineral oit cutting fluids should be used. A mineral oilbased, chlorinefree liquid tool, bc37mg is especially designed for magnesium machining with superb cutting performance and emulsion stability. This scale tends to form deposits on the hottest part of the engine, which reduces heat transfer and can induce corrosion. Water reacts with magnesium to form hydrogen which is flammable and potentially explosive when mixed with air. In machining of magnesium alloys,cutting fluids provide far smaller reductions in friction than they provide in machining of other metals and thus are of little use in improving surface finish and. Similarly, some require phosphatefree to avoid hard water scale deposits. Machining principles of coolants and oils elearning cnc. The following list of safety precautions and machining tips for machining. The information given is designed only as a guidance for safe.
The available information on safety in handling magnesium. Thirdly, if coolants are necessary for high speed machining, do not use waterbased lubricants. This cnc machining training course covers oilbased and chemicalbased cutting fluid, gases, and machine lubricants and oils, and focuses on the properties, purpose, application. Our products provide superior cooling, cleanliness and long emulsion stability. Instead use a light mineral oil, or a watersoluble cutting fluid such as castrol hysol mg specially formulated for machining magnesium. Our machine uses a lubricant for magnesium cutting and it washes some of the chips into a feeder that removes them from the machine. Bioarmor technology means builtin resistance to bacterial growth without the use of bactericides. Pdf methods for prevention of ignition during machining of. It is also good in light stamping and roll forming operations. Jul, 2004 in machining of magnesium alloys,cutting fluids provide far smaller reductions in friction than they provide in machining of other metals and thus are of little use in improving surface finish and tool life. We are looking into an automatic fire detection and suppression system to install in the cnc machine. Over the years, semisynthetic machining and grinding coolants have compiled an inconsistent service. Alcoholbased coolant offers environmentally friendly machining. Some companies in japan use semidry machining via a misting system.
Characteristics of metalworking fluids the importance of. Metalworking fluidsmetal removal fluids are also called machining fluids, cutting fluids, and cutting oils. We manufacture and custom blend other machining coolants that are not available online. Alphasyn t high performance, fully synthetic lubricants designed for use in central lubricating systems and gearboxes operating under harsh conditions, particularly at elevated temperatures. We do what many dont that is, safely make machined magnesium parts. The information provided in this safety data sheet is correct to the best of our knowledge, information and belief at the date of its publication. However, there is a limited choice for coolant when machining magnesium alloy, as it can react with water and other oilbased coolants too.
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