Polishing and superfinishing processes can also be used to finish metal AM parts. 37 Spur gear with diametral pitch of 64. The gearbox. 3: (a) The relative volumes are shown for cubes of 1 m 3, 1 dm 3 (1 L), and 1 cm 3 (1 mL) (not to scale). Reduce friction and extend the life of your driveline components. The high-density isotropic finishing media has slight cutting power. To achieve these results, some and preferably all of the gear. Salerno, L. e. Unconventional isotropic superfinishing processes could be a solution to this problem since they can generate a low surface roughness on complex geometries. · Increased lubrication. In-depth temperature measurements were made across the face width and at the axial end of the gear mesh. Since 2018, REM has received over $3. From simple deburring to high-end titanium finishing, our combination of specialized tumbling media and centrifugal polishing expertise fill the finishing gaps in your overall part production process. The resulting plastic anisotropy factor defined as A γ = γ ¯ u s {1 1 0} 〈 1 1 1 〉 / γ ¯ u s {1 1 2} 〈 1 1 1 〉 is A γ = 0. According to available experiments [15] Ti-73V at% is the only known elastically isotropic Ti alloy, which due to relatively high density and price lacks the major advantages of the lightweight Ti alloys. In conclusion, it is clear that the surface of a gear is a key factor in its operational performance. Materials Matter : Surface Finishing Rotorcraft Gearing . Superfinishing is an imprecise term for a range of manufacturing techniques that produce enhanced surface finishes. Tumbler, disc, drum, or vibratory finishing equipment is used with abrasive media and compounds. This technique is applicable to a range of metallic parts such as gears and bearings and is able to reduce the Ra <0. 08 H - 0. REM Surface Engineering, founded in 1965, has been a leading provider of isotropic superfinishing services in traditional industries for decades. Metal Finishing for 3D Printed Parts Webinar – Part 7 – OPEN IMPELLER . It is ideal for short cycle times and low residue processes. The technological feasibility of the isotropic superfinishing (ISF) process, applied to Ti-6Al-4V parts produced by electron beam melting, is investigated in this paper by considering the dimensional and geometrical deviations induced by the finishing treatment, and from observations of the surface morphology. Critical gear profiles, exotic alloys, ultra-low. Given the relative simplicity of the process, nitriding (in particular, gas nitriding) remains standard in many industries. 53 The above photos detail the difference between a conventionally ground surface and anJ. I'm mostly interested in the superfinishing aspects. cluding low and high energy isotropic superfinishing technologies. Serving Defense and Commercial Customers for the fixed wing, Helicopter, U. , Satellite, and Specialty Vehicle Industries. This improved surface significantly reduces friction and provides several engineering advantages. AIA/NAS : Aerospace Industries Association. Since nitriding does not involve heating into the austenite region and subsequent quenching, nitrided parts offer minimum. Isotropic Machines can create a surface texture of 1. some researchers have shown that superfinishing gears to a near mirror-like surface can significantly increase the surface fatigue lives of gears even without shot peening. Introduction Noise and vibration control is a primary concern for the transmission design engineer, and particularly so in the design of a helicopter main transmission. Developed by REM Surface Engineering, ISF, or “Isotropic Superfinish”, is a polishing treatment for machined metal components that. Nowadays, it is increasingly being used in the industrial manufacturing of titanium-alloy components for aerospace and medical industries; however, the main weakness of structural. Catalano1 & Paolo C. EN. “Main Gearbox Malfunction/Collision with Water. · Reduced contact/surface fatigue. As spiral bevel gears for the UH–60 helicopter are in generally High-Demand due to the needs of new aircraft production and the overhaul and repair of aircraft returning from service,. Cleaned Ti-6Al-4V swarf was fully consolidated using the FAST process at sub-transus and super. The process removes very little material, and will not affect bearing clearances by a noticeable. Ti-6Al-4V components Eleonora Atzeni1 & Angioletta R. Isotropic Superfinishing. 10 Other elements, total - 0. Isotropic superfinishing (ISF) is able to produce 2-4 μin Ra surface finishes using a combination of vibratory media and surface conversion chemicals without modifying the profiles of aerospace quality ground gear teeth. Process medias are a critical component to most of REM’s isotropic superfinishing technologies. Contact with us We will give you the help you need +86-572-2261276 +86-13906720286 [email protected] Ceramic Tumbling Media is a heavier, longer-lasting media. Featured Product: steel tumbling media. Nebiolo REM Chemicals. It is well documented that isotropic superfinishing automotive rear axle gears can play a significant role in reducing these emissions. Contact. The process gives the component an isotropic finish, that is, a non-directional, uniform surface finish with a low Ra obtained by lowering the roughness and increasing the compressions so as to enhance the performance of these. The technology, economy, and environmental sustainability of isotropic superfinishing applied to electron-beam melted Ti-6Al-4V components | springerprofessional. 5Fe (Ti-5553, wt. From simple deburring to high-end titanium finishing, our combination of specialized tumbling media and centrifugal polishing expertise fill the finishing gaps in your overall part production process. Increasing numbers of gearing projects are specifying isotropic superfinishing processes due to the demonstrated performance and durability increases generated by the reduced roughness and. After that, Lin et al. TIA : Telecommunications Industry Association. IN-625, IN-718, HX, JBK-75, NASA HR1) Stainless Steels (ex. However any parts can be Superfinished that are not already coated like some wrist pins that come DLC coated. Isotropic Superfinishing of Motor Internals. · Optimum surface roughness and stress characteristics. 25 Y - 0. A basic understanding of superfinishing for metal components. It has been reported that metal-to-metal contact areas, if refined by isotropic superfinishing (ISF), will have a resultant isotropic surface. A direct method of deriving these parameters involves the processing of the complete raw data of tensile testing as per ASTM E-646. ISF™ surfacesSUPERFINISHING GEARS Management Summary Chemically accelerated vibratory finishing of gears using high density, non-abra-. This is due to. This paper will outline NRTC-CRI funded testing of a Bell Model 427 main rotor gearbox with ISF processed gears. Founded in 1965 in. , Sroka, G. A relative movement was generated by tool rotation and worktable movement, causing material to be removed by magnetic brush. This improved surface increases energy/motion transfer efficiency in the metal-to-metal contact area by reducing friction. It is used when high-quality parts need to be finished as gently as possible. Technology. Minimum surface roughness. Thermal Spray Coatings Wear resistant and barrier coatings such as HVOF, arc and flame spray, protecting against high temperatures, wear,. Concomitant to the mechanical abrading away of the asperities on the ground specimens, was a higher, monitored bearing The use of mass finishing equipment permits processing of large batches of parts. Home; Features; Profiles; Departments. For the roughness factor, the relative mean peak-to-valley roughness (Rz) is utilized, and as the. The paper also reviews the technique used to generate ISF and some of the improvements that can be imparted to metal-to-metal contact surfaces. A minimal amount of material. The result is a cooler, quieter and longer lasting gear set. The company invented what is now commonly known as isotropic superfinishing – a technology created by combining the chemical activation of a surface with mass-finishing equipment to effect material removal, thereby creating optimal surface quality and process efficiency, while maintaining component shape more accurately than. By: William P. 13% of 1T-MoS 2. The ISF technology produces a rela- tively small amount of effluent, which can be treated with conven- tional waste-water treatment sys- tems. Weiss, and G. 75 μm ISF Finished Block 2. The ultimate material finishing goals can vary: better wear resistance, electrical conductivity, brightness, corrosion resistance, paintability, bond to rubber, chemical resistance, harness, and so on. With superfinishing nanometric values like Ra 0. The samples were subjected to a sandblasting process which, on average, lasted 20 min per part, in which a 60-mesh white corundum (aluminum oxide) was used. However, the. Isotropic Superfinishing of S--76C+ Main Transmission Gears. 75 μm ISF Finished Block 2. The technological feasibility of the isotropic superfinishing (ISF) process, applied to Ti-6Al-4V parts produced by electron beam melting, is investigated in this paper by considering the dimensional and geometrical deviations induced by the finishing treatment, and from observations of the surface morphology. Superfinishing removes 1-2 microns of stock on radius and requires less energy. These isotropic superfinishes achieve the highest performance ratings in terms of friction, heat, noise and wear in the bearing, gear, and turbine industries. 2, 3. Standard-sized round axial fatigue test specimens (ASTM E466, []) with a gauge length of 16 mm and a gauge length diameter of 8 mm were printed through laser powder bed fusion (L-PBF) at 0 degrees (°) and 90° relative to the build platform on a Concept Laser M2 Dual SLM (GE Additive) printer. Unconventional isotropic superfinishing processes could be a solution to this problem since they can generate a low surface roughness on complex geometries. At Ring & Pinion Service, the process we use is chemically accelerated vibratory surface finishing. Isotropic superfinishing (ISF) machines use a non-abrasive process consisting of mass finishing or tumbling media, combined with chemicals, that convert a surface. Superfinishing is an imprecise term for a range of manufacturing techniques that produce enhanced surface finishes. A traditional machined surface has directionally oriented, parallel rows of surface asperities, whereby an isotropic superfinished surface (or an isotropic superfinish) has no asperity. Priarone1 & Alessandro Salmi1 Received: 2 January 2021/Accepted: 14 July 2021. Metal additive manufacturing is a major concern for advanced manufacturing industries thanks to its ability to manufacture complex-shaped parts in materials that are difficult to machine using conventional methods. isotropic superfinishing. at a customer’s site. Priarone1 & Alessandro Salmi1 Received: 2 January 2021/Accepted: 14 July 2021. . Isotropic superfinishing can improve the roughness condition and thus leads to a reduction in the mean coefficient of friction and an increase in the scuffing load capacity [1–3]. Suitable applications include transmission gears and shafts of virtually any size. REM’s complete isotropic superfinishing systems are robust equipment solutions for increasing the quality, volume, and reliability of the metal finishing and surface polishing processes at your company. Ti6Al4V alloy is an ideal lightweight structural metal for a huge variety of engineering applications due to its distinguishing combination of high specific mechanical properties, excellent corrosion resistance and biocompatibility. [13] Rao Suren B 2009 Repair of aircraft transmission gears via isotropic superfinishing Gear Technology. Ti-6Al-4V (Ti64) is a frequently used material for LPBF, but as-built LPBF-Ti64 has poor ductility that limits its usage. 37 Spur gear with diametral pitch of 64. In. REM’s ISF ® Process is an isotropic superfinishing technology that is proven to significantly increase the efficiency, performance, and life of metal to metal contact power transfer components for a range of Automotive component applications. Any gear or shaft in the motor, crank shaft halves and rods, and cams can all. In-House Isotropic Superfinishing – Gear Finishing Service. A direct method of deriving these parameters involves the processing of the complete raw data of tensile testing as per ASTM E-646. Sr. R. join our mailing list. This paper will outline NRTC-CRI funded testing of a Bell Model 427 main rotor gearbox with ISF processed gears. The improvements are based on changes to the following crankshaft manufacturing processes: the steadiness of the journals in semifinish grinding, the dressing frequency and feed rate. It has been demonstrated in this project that this surface damage can be removed while maintaining OEM specifications on gear size, geometry and metallurgy. Rz. The as-ground gears that were run extensively before superfinishing had an average surface roughness of 3. Tech. REM Surface Engineering's ISF Process Overview. Gear Repair for Helicopters and Wind Turbines via Isotropic Superfinishing . Isotropic superfinishing is a term that, in the broadest sense, describes any process that is achieves a “superfinish” while also generating an isotropic surface texture. Testing performed in- cludes thermal efficiency, gear tooth bending fatigue. 6 Poon and Bhushan7 demonstrated the influence of the resolution of the applied measurement equipment . · Surface reduction to mirror like finishes. 13 N - 0. Increase Fuel. This is to the internals of the drivetrain what vapor blasting does to the aluminum/mag. Isotropic superfinishing is an ideal method of removing the problematic white layer created during the nitriding process. It is well documented that isotropic superfinishing automotive rear axle gears can play a significant role in reducing these emissions. Share on Facebook. REM has a range of developed, isotropic superfinishing/polishing processes for Copper alloys that are suitable for addressing the complex shapes and critical applications where Copper is being used. Chemically accelerated vibratory surface finishing (CAVSF), also referred to as isotropic surface finishing or superfinishing, is an inexpensive and environmentally friendly process capable of reducing stress raisers, peaks, and the damaged material from the flank surfaces of a gear. 06 μm ISF Finished Ring 5. 2. English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian česk. 02 μm Ra. The result is a cooler, quieter and longer lasting gear set. Fig. Isotropic superfinishing of gears, including ring and pinion gears, is an increasingly popular and effective method to reduce friction and improve gear life. 26 μm. This process is discussed in the October column, “Isotropic Superfinishing,” and works by selectively removing the aforementioned peaks, forming larger and larger flat areas until all peak. The gears were inspected for profile and lead quality and surface. Titanium Alloys (ex. PDF. Moreover, evidence suggests that isotropic superfinishing imparts a finish that increases gear durability and service life in the field. Ceramic Wheel Polishing Specialists. A finishing technique proprietary to REM Surface Engineering, isotropic superfinishing uses a combination of mechanical and chemical finishing to achieve a mirror-like finish on metal parts. The REM Process is known to reduce cycle time. This study showed isotropic superfinishing technology increased a gear’s resistance to contact fatigue by a factor of three, and increased bending fatigue resistance by at least 10 percent. adapt our OFT to accommodate F357, Ti-6Al-4V, and Scamalloy[x], as well as a leveraging our post-process surface finishing expertise to adapt AM print parameters and facilitate AM adoption across Air Force depots for Rapid Sustainment and Fleet Readiness[xi]. Since that time, it has become widely accepted as a solution for numerous gear failure modes and performance enhancements. Isotropic Super finishing is used to produce a high quality surface finish to components, typically where high contact stresses are present. Normal Ground Block 25 μin / 0. By: William P. Part break-in cycles and bending fatigue resistance can be improved via isotropic superfinishing. The Isotropic Superfinish process (or simply ISF®) is used on those components that require enhanced performance and output. In-House Gear Finishing Service. English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian česk. Worldwide pickup and shipping available. 1 μin / 0. HPSF is an Australian based company dedicated to providing isotropic superfinishing on a range of different automotive and industrial components. Contact us today with any enquiries you may have. When metal components come into contact with each other, contact stresses and friction occurs which directly. An Isotropic Superfinish (ISF) is produced by a patented chemically accelerated vibratory finishing process using non-abrasive media that is capable of surface finishing hundreds of parts per hour. Nitriding introduces nitrogen into the surface of a steel at a lower temperature than carburizing. isotropic superfinishing Expectations for a Chemically-Accelerated Super-finishing Process – Part 2/3 Posted by Justin Stephens on Monday, September 18th, 2023 inIsotropic Superfinishing of S--76C+ Main Transmission Gears. 75201 Kojetin. This process is also called chemically accelerated vibratory finishing, where a highly active compound plays an essential role in the process. A Ground Surface has directionally oriented, parallel rows of surface asperities. By : Bill Nebiolo , ABSTRACT. 5 Chemically Accelerated Vibratory Surface Finishing. Posted by Danny Estrada on Wednesday, October 3rd, 2018 in. By utilizing non-abrasive, high density media in conjunction with an isotropic superfinishing (ISF) chemistry the surfaces of the complementary components can be superfinished to an isotropic or random finish. 6 Poon and Bhushan7 demonstrated the influence of the resolution of the applied measurement equipment . An experimental effort has been conducted on an aerospace-quality helical gear train to investigate the thermal behavior of the gear system. The technological feasibility of the isotropic superfinishing (ISF) process, applied to Ti-6Al-4V parts produced by electron beam melting, is investigated in this paper by considering the dimensional and geometrical deviations induced by the finishing treatment, and from observations of the surface morphology. Reduction of surface roughness via isotropic superfinishing is a tested and verified root cause solution to the problem of micropitting. Fig. For this reason, Arrow has added the capability of Isotropic Superfinishing. Polishing and superfinishing processes can also be used to finish metal AM parts. Ceramic Wheel Polishing Specialists. ). Horsepower Retention by ISF (Isotropic Superfinishing) of Automotive Racing Components. ” Aviation Investigation Report A09A0016, Transportation Safety Board of Canada. REM’s isotropic superfinishing technologies are able to controllably remove as little as 0. ASF or Accelerated Surface Finishing is our Isotropic Superfinishing process, engineered to produce ultra-low surface roughness measurements. 3 μin or 0. Horsepower Retention by ISF (Isotropic Superfinishing) of Automotive Racing Components. High-Density Ceramic. 50 4. Isotropic Super-Finishing. Shot peening mashes the surface up by firing small beats at the part and causing work hardening of the part. It employs mass finishing equipment in conjunction with accelerated refinement chemistries that are non-hazardous and environmentally friendly. Catalano1 & Paolo C. ASF is capable of producing surface finishes otherwise unachievable through "standard" vibratory finishing processes. or 0. Gear Solutions Magazine Your Resource to the Gear Industry. 005 Other elements, each - 0. The days of early gearbox failure due to epidemic micropitting are largely in the past. Ceramic Wheel Polishing Specialists. > First in a seriesChemically accelerated/assisted superfinishing, also known as isotropic superfinishing, was introduced into the gear industry more than 20 years ago. Isotropic Superfinishing. S. A case study on. Located in Downers Grove, IL, our gear manufacturing. If all of the raw gears placed in the equipment are identical. Vibratory Finishing Machine. The process may work on internal surface or bores if the bore. Ti-6Al-4V (Ti-64) is the single most extensively studied alloy in metal AM. 00005” (1. > First in a series. ”. Providing Vibratory, Isotropic Superfinishing, Abrasive Blast, Shot Peening & Industrial Washing Solutions 2y Report this post. This is a 6 hour process that decreases friction and increases performance. By : Bill Nebiolo , ABSTRACT. Rolling/Sliding Contact Fatigue testing shows that this commercial technology virtually eliminates contact fatigue (pitting) in gear test specimens. The REM Isotropic Superfinishing Process generates a low Ra surface. 50 6. Posted by Bill Nebiolo on Tuesday, November 19th, 2013 in The traditional finishing. The alloy Ti-5Al-5Mo-5V-3Cr-0. RobinH Plastic. “AH-64 loss of lubrication study: Test of isotropic superfinished AH-64 (Apache) engine nose gearbox without black oxide. HPSF-The southern hemispheres market leader in isotropic super-finishing services and high end forged ceramic wheel polishing. This video has an interview about the benefits of REM Superfinishing. 25 μin. Texas: 2107 Longwood Drive Brenham, TX 77833Isotropic superfinishing is an ideal method of removing the problematic white layer created during the nitriding process. Automotive power and drivetrain components typically transfer the energy from fuel combustions through a series of metal-to-metal mechanical components. 1 μm Ra), micro-textured surface that is isotropic (or non-directional) in nature. REM ISOTROPIC SUPERFINISHING is a three step process that uses two different non-hazardous chemicals and non abrasive media to produce a non directional low Ra finish. 75 V 3. Nebiolo REM Chemicals, Inc. Isotropic superfinishing is a term that, in the broadest sense, describes any process that is achieves a “superfinish” while also generating an isotropic surface texture. Tian et al. What Is Isotropic Superfinishing? The term isotropic superfinishing was coined to differentiate a specific subset of superfinishing techniques based on the texture that is created on the surface of the component to which the technique is being applied. The. Isotropic superfinishing is an additional manufacturing step to finalize the gear topography. The result is a smooth, burnished surface that polishes to a mirror-like finish. A primary goal of these processes is to generate an improved final surface finish that. Figure 8—Entire gear train after superfinishing. October 15, 2022. Figure 1. Typical. (2000) used the combination of EDM and ultrasonic machining to improve the machining. Ti 6AI-4V) Superalloys (ex. E. It is ideal for short cycle times and low residue processes. At West Coast Differentials, the process we use is chemically accelerated. REM’s industry-leading isotropic superfinishing technology, the ISF ® Process, is the specified surface finishing/surface polishing process for a wide range of aerospace power transmission and aero-engine applications because of its exceptional performance benefits; its proven process reliability and repeatability over decades of processing. %). These process technologies are applicable for both traditionally formed components via REM’s ISF ® Process, as well as for AM components via REM. The basic differences of gear types can be reduced to. Wind turbine gearbox durability has improved significantly over the past ten years. 16 μm ± 0. This paper will outline NRTC-CRI funded testing of a Bell Model 427 main rotor gearbox with ISF processed gears. As the gear industry has pushed beyond materials such AISI 8620 and SAE 9310, the ISF technology has been pushed to. 1 μm Ra), micro-textured surface that is isotropic (or non-directional) in nature. The numerical. How superfinishing is applied The component is firstly shot peened, which is a cold working process creating multiple indentations in the surface using spherical media called shot. The specific gravity of this media is 3. Isotropic Superfinishing Machines also called REM Finishing Machines. The results are very interesting, and contrast in many ways with MicroTek's. Contact us to find out specifically how REM’s technologies can benefit your business. The word "isotropy" is derived from the. REM Surface Engineering, founded in 1965, has been a leading provider of isotropic superfinishing (ISF®) services in traditional industries for decades. The technology, economy, and environmental sustainability of isotropic superfinishing applied to electron-beam melted Ti-6Al-4V components | springerprofessional. Recently Viewed Items. REM’s isotropic superfinishing technology (ISF ® Process) significantly extends component life, increases resistance to stress corrosion cracking. Thread starter RobinH; Start date Nov 1, 2010; Replies 2 Views 7,726 R. T. In-House Isotropic Superfinishing – Gear Finishing Service. Both research groups concluded that superfinishing is one of the most powerful technologies for significantly increasing the load-carrying capacity of gear flanks. (1999) investigated the machining characteristics of Ti–6A1–4V with kerosene and distilled water as the dielectrics. Isotropic superfinishing is an ideal method of removing the problematic white layer created during the nitriding process. 015 Fe - 0. One such study by Paul Niskanen et al. Today, more than 341,320 wind turbines are operating worldwide. The technological feasibility of the isotropic superfinishing (ISF) process, applied to Ti-6Al-4V parts produced by electron beam melting, is investigated in this paper by consideringthedimensionalandgeometricaldeviationsinducedbythefinishingtreatment,andfromobservationsofthesurface morphology. Its application to gears has been studied in depth, 3,6, 7, 8,9 where it has been. It would not be appropriate to treat those. Superfinishing Method. Isotropic Superfinishing. DIN : Deutsches Institut fur Normung E. Typical examples of metal-to-metal components include bearings,. The REM’s isotropic superfinishing technologies are value adding and performance enhancing improvements to conventional machining operations such as grinding and lapping. It uses a chemical etchant stimulated by electrical current to smooth and treat the internal and external surfaces of a metal part. Catalano1 & Paolo C. Superfinishing, also known as micromachining, microfinishing, and short-stroke honing, is a metalworking process that improves surface finish and workpiece geometry. References. 2004-01-3511. Home; Features; Features; Departments. 06 μm. The REM system is ideal for gearbox components, ring and pinions, differential parts, and more. Isotropic superfinishing and electrochemical grinding are examples of chemically accelerated processes. > First in a series. REM’s ISF ® Process, is the most trusted isotropic superfinishing technology for flight critical power transmission components. Automotive power and drivetrain components typically transfer the energy from fuel combustions through a series of metal-to-metal mechanical components. The technology, economy, and environmental sustainability of isotropic superfinishing applied to electron-beam melted Ti-6Al-4V components E. · Reduction in lubricant temperature. The Technology, Economy, and Environmental Sustainability of Isotropic Superfinishing Applied to Electron-Beam. The isotropic finishing process reduces friction and wear on the surface while increasing durability and improving corrosion resistance. has been adapted and applied to aerospace quality gears to achieve near mirror finishes on gear tooth surfaces at a reduced cost compared to honing and a reduced scrap rate (Ref. The second issue is that both Ra and Rq provide equal weighting to the respective peaks and valleys on the component’s surface. The use of this alloy has grown substantially during the last 15–20 years, thanks to its outstanding deep. 8. New alloys, heat treatments, machining, grinding, honing, and coatings were developed for this purpose. and Ahlfors, M. Isotropic Superfinishing of S-76C+ Main Transmission Gears. TI’s TMP64 is a 1%, 47-kΩ linear thermistor in 0402, 0603/0805 packages. Developed by REM Surface Engineering, ISF, or “Isotropic Superfinish”, is a polishing treatment for machined metal components that. The parts were printed in titanium 6/4 on an Arcam A2X by Addaero Manufacturing. 75 μm. cluding low and high energy isotropic superfinishing. 2560x1440. They are experts at the REM and ISF super finishing processes. Isotropic finishing media uses either high-density brown color media or fine porcelain tumbling media. TIA : Telecommunications Industry Association. Titanium metal matrix composites (TMCs) provide an alternative to overcome these shortcomings. REM isotropic superfinishing. 5V (Grade 6) Aluminide (TiAl/Gamma Titanium). Member Price : $15. “AH-64 loss of lubrication study: Test of isotropic superfinished AH-64 (Apache) engine nose gearbox without black oxide. 50 O - 0. ), respectively, have been reported on gears. Using high density, non-abrasive ceramic media and conventional vibratory. Increase Fuel. An Isotropic Superfinished surface has no asperity peaks, only a non-directional surface texture. V. EBM Control 5. The aerospace and helicopter gear industries have only minimally employed this technology as a repair technique. Arrow Gear uses Isotropic Superfinishing for maximum surface finishIsotropic Superfinishing of S--76C+ Main Transmission Gears. The result is a cooler, quieter and longer lasting gear set.