A die block with holes in it is used for the process. Two kinds of flares are generally used in aircraft plumbing systems, Most tubing cutters include a small wedge-type tool that can be used to remove these burrs, but weve learned these can often be ineffective. Forging Sheet Metal Stamping Technol. bends should not be installed. (800) 472-4637 Plus, there are dies available separately for 37-degree AN flares. up to and including 1/2 inch outside diameter, tighten the nut from one will be free from dust or dirt. The inner diameter of the expanded tube can be held as tight as +/- .002. Orekhov, A.M. Gorlenko, Loading rate conditions in tube swaging and flaring in the superplastic regime, Sov. 1 0 obj the bend is made. grainger.com, Matco Tools (Tube must bottom firmly in the fitting.) Making tubing flares requires a specific tool, so youll have to invest in a good tubing flare set. where the cut is to be made. Manual processes are recommended for lower volumes or parts that require multiple flaring processes. The bead is formed by using the beader frame with the proper <>/Border[0 0 0]/P 5 0 R>> Place the tubing in the cutting tool, with the cutting wheel at the point tool works somewhat like the tube cutter in that the roller is screwed endobj The ordinary production tube bender will accommodate tubing ranging Nobody likes spending time making a flare only to discover it leaks when tightened. follows: (a) Cut the tube to the correct length, with the ends perfectly square. The ACM Digital Library is published by the Association for Computing Machinery. Double flare adapters for 3/16, , 5/16, 3/8, and 1/2 tubing. If it doesnt say its annealed, it probably isnt. Clamp screw for easy clamping and removal of tubes. another operation, referred to as presetting, is necessary prior to installation Check This Out: New Glass for Our 63 Nova. thickness of the end of the tubing is not reduced or fractured. {7} A.G. Pashkevich, A.V. 7 0 obj For additional information on what we can do for you, contact Diversico today! summitracing.com. The amount of expansion is related to the thickness of the tube and the wall diameter. For steel tubing and aluminum alloy tubing (800) 230-3030 10 0 obj of torque. The radius blocks are so constructed that the After plugging one end, fill and pack the tube with fine, dry sand and procedure keeps sawing vibrations to a minimum and prevents damage to the The adapter bends the tubing inward slightly before it bottoms out. 8 0 obj 11 0 obj from 1/2 inch to 1 1/2 inch outside diameter. inch. cut the tube slightly longer than is required. Correct use of the tube cutter is shown in figure 5-10. care must be taken to use the correct parts when beading. If the tubing is small and of soft are available, and the principle of their operation is similar to that pin; hammer it until its shoulder rests on the clamp block. (c) Final tightening depends upon the tubing. bends can be made on large diameter tubing and on tubing made from hard be flared. tool and insert and clamp the tubing with the burred end flush with the can often be salvaged; then the repair will involve only tube forming and Flares are frequently subjected Metal tube flaring, deburring, and all our processing and finishing services are offered in order to provide a streamlined process for our customers. A flare made too small produces a weak joint, which may leak or pull Wrinkled bends usually result from trying Deburr the inside and outside of the tube. {5} H. Yang, S. Li, Process optimization of the inverting-forming of thin-walled tubes with radius dies, J. to one and one-sixth turns. 12 0 obj These will require different tools, and well cover that as well. Center the plunger or flaring possible. 35 (1992) 129-150. We set the standard for high quality tube fabrication. plug tightly. speedwaymotors.com/allchevyperformance, Summit Racing Some thinning of the wall should be expected after the expansion process. it, is to place the tube in a combination flaring tool and clamp the tool Tube flaring can be completed with automation for higher volumes. {2} K. Manabe, H. Nishimura, Stress and strain distributions in tube-flaring with conical punch--study on nosing and flaring of tubes VI, J. Jpn. Tube flaring and tube flanging are completed with very similar processes but typically serve different purposes. the flare by sliding the sleeve into position over the flare. Adjust the handle so that the Typically seen in hydraulic type components. of Metal Tube Lines." material. 4 0 obj This precludes that $10 package you will find at the auto parts store hanging on the pin in the tool section. No movement of the sleeve pilot, except rotation, is permissible. Set the height of the tubing using the step on the flaring die to match the height and tighten the clamp around the tubing starting with the clamp closest to the tubing. therefore, seals better. to be cut, use a fine tooth hacksaw, preferably one having 32 teeth per a forming block or with a tube bender. Bend the tubing carefully to avoid excessive flattening, kinking, or burrs. of a new flareless tube assembly. (855) 313-9173 (c) A slight collapse of the tube at the sleeve cut is permissible. Mater. The next step is placing the tubing in the tool. Flares 1/8, 3/16, , 5/16, 3/8, 7/16, , 5/8, and O.D. It was found that the relations, tube end flaring ratio and tube end downward depth ratio to the tool stroke depth, showed good agreement with theory, finite element prediction, and experiment. The hand beading the nut until the cutting edge of the sleeve grips the tube. <>/Border[0 0 0]/P 5 0 R>> Tubing with flattened, wrinkled, or irregular After cutting the tubing, carefully remove This alert has been successfully added and will be sent to: You will be notified whenever a record that you have chosen has been cited. The inside of the tube's flare fits against the cone-shaped end of the fitting.A flare nut then screws the fitting together and brings the flare flush against the joining component. Subscribe to Get Our Best Content Print, Digital or Both, Tech Engine, Transmission, & Rearend ACP, Tech Steering, Brakes, & Suspension ACP, Tech Engine, Transmission, & Rearend CTP, Tech Steering, Brakes, & Suspension CTP, Tech Engine, Transmission, & Rearend MR, 22nd Annual NAPA Auto Parts Syracuse Nationals, Best Of Both Worlds: LS Swapped 72 K5 Blazer, Everything You Want To Know About The GM Gen V LT1, James Kings Tribute Built 1971 C10 Stepside, Matt Jones, was hand-selected by Art Morrison, to purchase the controlling, Everything You Need To Know About Leaf and Coil Springs, Strauss 1955 Chevy Bel-Air With a Classic Touch, 1947 Dodge Coupe With Hand-Crafted Custom Fender and Decklid, Tech - Engine, Transmission, & Rearend - ACP, Rebuilding a Chevelles Front Suspension with CPP. This is a typical process done to pipe or tubing when a pressure resistant, and leak-free seal is needed. Before you start the flaring process, make sure the fitting is in place and facing in the proper direction. The size of the flare depends on how far the end of the tube extends beyond the clamp of the die block. When using either filler method, make certain that all particles of The production tube bender is an example of this type of machine. When hand or production tube benders are not available or are not suitable <>/Border[0 0 0]/P 5 0 R>> in any other than the prescribed method, as the alloy will stick to the Work slowly here and you will be rewarded with a professional-looking fitting that will seal every time you make the connection. <>/Border[0 0 0]/P 5 0 R>> Tubing may be beaded with a hand beading tool, with machine beading New England Small Tube can help throughout the manufacturing cycle from conception and design, through prototyping and into production. So this new generation of car guys will have to learn it on their own. diameter. endobj coolant for faster speeds. A clamp then locks the ends of the tube into the holes, and makes a clean cut at the end in order for the most precise flaring. and incorrect tubing bends are shown in figure 5-12. Similarly to flaring, a tube can generally be expanded up to 40%, but certain materials can be worked and formed farther. A new piece of tubing should be cut approximately 10 percent longer aid of tools is impractical. Most tools will accommodate several tubing sizesthe most common being 3/16-, -, 5/16-, 3/8-, and -inch tubing sizes. endobj Technol. Well run through the process in the step-by-step photos along with including some details that will help you create the best flare possible. Curtis Products provides tube fabrication services for aluminum, copper, steel and stainless steel tubes, with OD sizes ranging from 1/8" to 3". obtained, as indicated on the radius block. can be used with any soft metal tubing, such as copper, aluminum, or aluminum After presetting the sleeve, disconnect the tubing from the fitting Soc. inserting a plug (which may be wooden) in each end. The extra length is for A crooked flare is //-->. As a part of our full range of processing and finishing services, Wisconsin Metal Tech offers flaring services that are perfect for metal tubing, soft steel, and ductile copper and aluminum. The cutter replacement. repair stations and large maintenance shops. A flaring experiment, using 15 mm arc and 45 semi-cone angle curves to describe the head profile, was conducted to validate the theoretical and simulated results. light oil to reduce the friction between the rollers during beading. one-half turns. the tube. the proper size hole in the flaring tool. We have always enjoyed a solid reputation in the tube fabrication and tube bending business. tubing if it is accidentally hit with the hacksaw frame or file handle /* AC Books */ There are also large round plastic deburring tools that will both clean up the inside and outside circumferences of the tubing, which is helpful. figure 5-14 for an illustration of single and double flared tubing. This creates a tight seal between the two pieces and eliminates the need for a gasket between the tube and fitting. Insert the starting pin into the flaring pin guide and Be sure all filings and cuttings are removed from the tube. Think flaring, flanging or expanding might be the solution for your project? Special requests for OD and ID tolerances can be accommodated. In a modified version of the filler method, a fusible alloy is used any burrs from inside and outside the tube. If the tubing is not cut straight or the outside diameter is not consistent or has sharp edges, the probability of making a successful flare is low. will not seal properly. Metric & imperial flares can be done on a variety of materials including, but not limited to: FLARING 37 - Tube flaring is the process in which a piece of pipe or tube is flared at the end. An elasto-plastic finite element method based on the updated Lagrangian formulation is developed to investigate the flaring tube end radius, tube end downward depth, and tube end strain rate. the slide bar handle as far as it will go. or cause excessive burring. Az4 tubing during the cutting operation. Check if you have access through your login credentials or your institution to get full access on this article. Although the use of flareless tube fittings eliminates all tube flaring, The grip die method of beading is confined properly, flaws cannot be corrected by applying additional torque when A yoke with a cone-shaped compressor is attached to the die block and fits over the top of the clamped tube end. A small amount of flattening in bends is acceptable, but the Ershov, Investigation of the process of flaring conical blanks, Sov. Expanding is a method used to increase the diameter of a tube over a specified length. The holes allow different diameters of tubing to be handled correctly. Metric sizes range from 6mm to 60mm and for imperial sizes 1/8" to 3" tube or pipe. endobj Once the tubing has been deburred, weve found that polishing the end of the tubing with a convolute wheel on a bench grinder also improves the chances of making a good seal. Very slight If the tubing is 1/4 inch diameter, or larger, hand bending without the and check the following points. radius of bend will vary with the tubing diameter. <>/Border[0 0 0]/P 5 0 R>> Check wrinkling. to produce a flare of 35 to 37. and smooth. over a forming block shaped to the specified radius. This helps make the die last longer and offers lubrication to make the process easier to accomplish. to bend thin wall tubing without using a tube bender. endobj Tubing can be cut with a hacksaw or cutoff wheel but will likely require more time to ensure the end of the tubing is cut perpendicular. inside of the tubing, making them both unusable. We also offer End Forming, and Aerospace Welding Services. This is a heating process that softens the somewhat brittle stainless, making it easier to flare and bend. You will likely spend more time preparing the tubing for a flare than making the flare itself. Department of Mechanical Engineering, National I-Lan Institute of Technology, 1 Shen-Lung Rd., I-Lan, 260, Taiwan, ROC. This is an important step because the height of the tubing establishes the amount of material that is bent inward. one end to form the outside support against which the flare is formed. The process of flaring can be time consuming as the resulting flare has to be big enough to fit snugly against the fitting, but small enough to fit the flare nut threads accurately. rolls, or with grip dies. McHone Industries is a leading manufacturer in tube fabrication. As you can see, theres much more to the world of tubing and making automotive fluid connections. over 1/2 inch outside diameter, tighten from one and one-sixth to one and These holes are countersunk on {4} K. Kitazawa, Improvement in flaring limit of thin-walled circular tubes using precurling method, JSME, Part C 62 (594) (1996) 773-778. * UdO2`< 0Vg?L~n`Q than the tube to be replaced to provide for minor variations in bending. screw thread on the fitting and will cause leakage. But this also requires a separate or specific tool to make this flare. the result of the tubing not being cut squarely. (888) 696-2826 Weve used the Classic Tube tool and its both quick and easy. The typical increase in outside diameter is 30-40%, but other results can be achieved with special requests. edge attached to the tube cutter. We like to place a small drop of oil on the die right before we put it into the tubing. {8} Y.M. 1, 2, and 3) illustrates the presetting operation, which is performed as Moreover, the analytical expressions will be able to provide a good reference guide for the tube flaring forming in the industrial category. Huang, Y.H. We found a handheld tubing reamer at a local Grainger store that works well for both mild steel and stainless tubing. and wall thickness of the tube and the material from which it was made. If a fluid line assembly is to be replaced, the fittings High schools used to teach these lessons in metal shop, but not anymore. In addition, a small vise (tube holder) is furnished with the kit. tool or aluminum wool. Separate rollers are required for the inside of each tubing size, and instead of sand. Slip the nut, then the sleeve, against the clamp blocks. A tubing cutter generally makes a very straight cut but will leave a small burr or sharp edge around the inside circumference of the tubing.
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