Browse Topic: Zinc alloys

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Flux, Silver Brazing High TemperatureAMS3411E (Current)8/4/2026
This specification covers a silver brazing flux in the form of paste.
AMS B Finishes Processes and Fluids Committee
That Others May Live: The Courageous Story of MASH Helicopter Detachments during the Korean War, 1950-1953F-0080-2024-00435/7/2024
Prior to 1950, use of the helicopter for evacuation was extremely limited, as military top brass often considered it a worthless contraption; thus, rescue was uncertain at best for downed pilots and wounded soldiers stranded behind enemy lines. However, this all changed in Korea, where twelve U.S. Army helicopters from three detachments, working in tandem with seven, newly created Mobile Army Surgical Hospital (MASH) units, would fundamentally change the Army's medical-evacuation doctrine forever. Using several models of the Bell H-13, the Hiller H-23, and the Sikorsky H-5 and H-19, this small band of courageous pilots pushed themselves and their aircraft to their limits, transporting 21,212 critically wounded soldiers for life-saving surgery to various MASH units, cutting the fatality rate from World War II in half. Adopting the 3rd Air Rescue Squadron's motto, "That Others May Live," these pilots and their helicopters were affectionately known to the wounded as "Angels of Mercy."
Fardink, Paul
Flux, Silver BrazingAMS3410K (Current)8/6/2021
This specification covers a silver-brazing flux in the form of a paste.
AMS B Finishes Processes and Fluids Committee
Plating, Zinc-Nickel AlloyAMS2417K (Current)5/26/2020
This specification covers the requirements for electrodeposition of a zinc-nickel alloy and the properties of the deposit.
AMS B Finishes Processes and Fluids Committee
Glossary of Carbon Steel Sheet and Strip TermsJ940_201907 (Current)7/29/2019
This glossary is intended to provide engineers, metallurgists, and production personnel with uniform definitions of commonly used carbon sheet and strip terms. The glossary serves to supplement information and photographs reported in SAE J810, J763, J877, J863, and J403. Many of the terms listed apply only to hot-dipped zinc-coated products or to uncoated products. The letter C following the term identifies a term applying to coated materials, while the letters NC identify a term applying to uncoated materials. Where no identification is provided, the term is common to both.
Metals Technical Committee
Plating, ZincAMS2402L (Historical)1/4/2019
This specification covers the requirements for electrodeposited zinc plating.
AMS B Finishes Processes and Fluids Committee
Electro-Deposition of GoldAMS03_17A (Current)2/15/2018
This SAE Standard specifies the requirements for the electro-deposition of gold on ferrous-base materials, copper-base materials, aluminum-base materials, zinc-base materials and nickel-base materials for MOD use. It is primarily intended for use on electrical and electronic items which are to be plated with gold to: a Increase the electrical conductivity of the surface. b Provide a solderable surface.
AMS B Finishes Processes and Fluids Committee
Zinc Alloy Ingot and Die Casting CompositionsJ468_201801 (Current)1/9/2018
SIMILAR SPECIFICATIONS—UNS Z33521, former SAE 903, ingot is similar to ASTM B 240-79, Alloy AG40A; and UNS Z33520, former SAE 903, die casting is similar to ASTM B 86-76, Alloy AG40A. UNS Z35530, former SAE 925, ingot is similar to ASTM B 240-79, Alloy AC41A; and UNS Z35531, former SAE 925, die casting is similar to ASTM B 86-82a, Alloy AC41A.
Metals Technical Committee
Magnesium Casting AlloysJ465_201801 (Current)1/9/2018
This document has not changed other than to put it into the new SAE Technical Standards Board Format This SAE Standard covers the most commonly used magnesium alloys suitable for casting by the various commercial processes. The chemical composition limits and minimum mechanical properties are shown. Over the years, magnesium alloys have been identified by many numbering systems, as shown in Table 1. Presently, SAE is recommending the use of the use of the UNS numbering system to identify those materials. Other equally important characteristics such as surface finish and dimensional tolerances are not covered in this standard.
Metals Technical Committee
Design of As-Cast High Strength Al-Si-Cu-Ni-Sr Alloys Using the Taguchi Method2017-01-50099/30/2017
In the present study, a design of experiment (DOE) technique, the Taguchi method, was used to develop as-cast high strength aluminum alloys with element additions of Si, Cu, Ni and Sr. The Taguchi method uses a special design of orthogonal arrays to study all the designed factors with a minimum of experiments at a relatively low cost. The element factors chosen for this study were Si, Cu, Ni and Sr content in the designed aluminum-based alloys. For each factor, three different levels of weight percentages were selected (Si: 6, 9, 12%, Cu: 3, 5, 7%, Ni: 0.5, 1, 1.5% and Sr: 0.01, 0.02, 0.03%). Tensile properties such as ultimate tensile strength, yield strength and elongation at failure were selected as three individual responses to evaluate the engineering performance of the designed alloys. The results of the factor response analysis were used to derive the optimal level combinations. The alloy with the optimal composition had an average UTS of 267.00 MPa, an elongation at failure of 1.13% and a yield strength of 210.37 MPa under the as-cast condition for a squeeze casting with a section thickness of 25 mm. The contribution of each factor was determined by an analysis of variance.
Fang, Li, Hu, Henry, Nie, Xueyuan, Tjong, Jimi, Zhang, Xuezhi
Electrodeposition of Zinc-Nickel AlloysAMS03_040A (Current)3/21/2017
This SAE Standard specifies the guidance and the requirements for the electrodeposition of zinc-nickel alloy coatings on a range of metallic substrates for the provision of corrosion resistance to steel components and galvanic compatibility between some bi-metallic contacting surfaces.
AMS B Finishes Processes and Fluids Committee
Protection of Aluminum Alloys by Sprayed Metal CoatingsAMS03_3A (Current)3/21/2017
This SAE Standard specifies the requirements for the application of sprayed metal coatings of aluminum, zinc, or aluminum-zinc based alloys for the protection of aluminum alloys against corrosion. It does not cover the metal spraying of aluminumarmour materials, which should be treated in accordance with the requirements of Def Stan 08-39.
AMS B Finishes Processes and Fluids Committee
Creating a Strong New MetalTBMG-246575/1/2016
A research team at the UCLA Henry Samueli School of Engineering and Applied Science has created an extremely strong yet lightweight structural metal with a very high specific strength and modulus, or stiffness-to-weight ratio. The new metal is composed of magnesium infused with a dense and even dispersal of ceramic silicon carbide nanoparticles. They say that it could be used in lighter weight transportation vehicles and aircraft, as well as in mobile electronics and biomedical devices.
AGS1669 Cleat, Wiring, Brass, No. 9AGS1669-3 (Current)12/3/2015
No scope available.
Engine and Airframe Technical Standards Committee (TSC)
AGS1217 Standard Union Nuts. (Brass)AGS1217-10 (Current)12/3/2015
No scope available.
Engine and Airframe Technical Standards Committee (TSC)
AGS1667 Cleat, Wiring, Brass, No. 10AGS1667-3 (Current)12/3/2015
No scope available.
Engine and Airframe Technical Standards Committee (TSC)
Electro-Deposition of GoldAMS03_17 (Historical)4/30/2015
This SAE Standard specifies the requirements for the electro-deposition of gold on ferrous-base materials, copper-base materials, aluminum-base materials, zinc-base materials and nickel-base materials for MOD use. It is primarily intended for use on electrical and electronic items which are to be plated with gold to: a Increase the electrical conductivity of the surface. b Provide a solderable surface.
AMS B Finishes Processes and Fluids Committee
Protection of Aluminum Alloys by Sprayed Metal CoatingsAMS03_3 (Historical)4/27/2015
This SAE Standard specifies the requirements for the application of sprayed metal coatings of aluminum, zinc, or aluminum-zinc based alloys for the protection of aluminum alloys against corrosion. It does not cover the metal spraying of aluminumarmour materials, which should be treated in accordance with the requirements of Def Stan 08-39.
AMS B Finishes Processes and Fluids Committee
LOCKWIRE, BRASSAS100016A (Current)7/29/2014
E-25 General Standards for Aerospace and Propulsion Systems
Development of Compact Synchronizer Technology for Manual and Automated Transmissions2014-01-17194/1/2014
Advancements in engine technology have increased overall torque rating of engine and demanded further improvement in transmissions to sustain higher input torque. Conventional brass synchronizers have proved inadequate for these torque and gear inertia. It becomes necessary to use advanced material science and enhanced technology to synchronizer capabilities. Multi-cone compact synchronizer with carbon composite friction material technology has been tested successfully for these more demanding applications. This paper will focus on some of the key challenges in modern synchronized transmission, and way forward to address those. Some of the key areas delivering highest impact are being discussed. A combination of various techniques has enabled a significant reduction in overall transmission length along with enhancement in shift effort, life and overall performance.
Pingale, Abhijeet
Ingot, Zinc Alloy (For Sheet Metal Forming Dies)AMSI7068C (Current)8/24/2012
This specification addresses requirements for a zinc alloy used in the production of sand cast forming dies for sheet metal stamping operations.
AMS D Nonferrous Alloys Committee
Brass, Naval, Bars and Rods 60.5Cu - 38.5Zn - 0.75Sn Hard Temper (H04)AMS4612J (Historical)2/15/2012
This specification covers a copper alloy (naval brass) in the form of bars and rods.
AMS D Nonferrous Alloys Committee
Ingot, Zinc Alloy (For Sheet Metal Forming Dies)AMSI7068B (Historical)10/24/2011
This specification addresses requirements for a zinc alloy used in the production of sand cast forming dies for sheet metal stamping operations.
AMS D Nonferrous Alloys Committee
Improving the Relationship between Processing and Properties of Zinc Die Casting: Developments in Creep and Ageing Correlations2011-01-10824/12/2011
Most creep studies are conducted to determine steady state creep rate and time to failure. However, the priority for the designer is to predict the amount of total creep, being the sum of primary and secondary creep elongations, for a given service life under given loads and temperatures, for example 0.5% elongation after 3000h. An assessment of total creep behavior of industrially important zinc alloys has been conducted, and correlation/prediction curves produced. Another important property, related to creep, is stability after ageing, both for unloaded and also loaded castings. Recently developed relationships between natural and artificial ageing, and the correlation of mechanical property changes for different periods of artificial ageing with natural ageing will be presented.
Goodwin, Frank E., Kallien, Lothar
EZAC™ - A Novel High Strength, Creep Resistant, Hot Chamber Zinc Die Casting Alloy2011-01-10844/12/2011
Progress in recent alloy development work has resulted in the commercialization of a high strength, creep resistant, hot chamber zinc based die casting alloy. The work was based upon earlier research conducted under the sponsorship of the Department of Energy Cast Materials Consortium (CMC). Refinement of alloy chemistry produced significant improvements in tensile strength, hardness and creep performance. Because the composition of this new alloy is near that of the Aluminum/Copper/Zinc ternary eutectic, the low melting temperature enables the alloy to be cast in a hot chamber die casting machine without excessive wear of shot end components typically experienced with other high-copper zinc die casting alloys contents such as ACuZinc 5.
Winter, Ryan
A New High Fluidity Zinc Die Cast Alloy2011-01-10864/12/2011
A new high fluidity zinc die cast alloy was developed at Teck Metals' Product Technology Centre. This hot chamber die cast alloy is based on the commonly used ZAMAK alloys but possesses up to 40% better fluidity. Industrial trials and evaluations have confirmed the excellent fluidity of the alloy as well as the easy use and adoption of the alloy. Tests have shown the alloy has comparable physical, mechanical and corrosion properties as Alloy 3 and 7. The alloy is best suited to be used for casting parts with section thickness less than 0.45 mm. It can also be used for casting parts that are difficult to fill or have high surface finish requirement.
Zhang, Keith, Filc, Artur
Zinc Die Castings for Automotive Applications2011-01-10874/12/2011
Zinc die casting products and metal casting processes continue to evolve for the benefit of end users. Through cooperative global research programs continuous improvements are still being made to the broad range of excellent mechanical properties, easy castability and the wide choice of finishes available for zinc die castings. Recent advances will be highlighted with case histories specific to automotive applications.
Gagné, Martin
FPS - Friction Pad System2010-36-045510/6/2010
The synchronization system was created with the intention to make easy the gear engaging in automotive transmissions. The speed difference of the shafts is reduced during the gearshift operation by means of sliding friction of the synchronizer rings. The constant friction performance can be improved and the wear can be simultaneously reduced either by additives in the oil of the transmission or by careful selection of the friction material for the synchronizer rings. Nowadays, brass or steel meet the requirement of both friction surface and resistance on the driving lugs. The friction coefficient of the surface can be increased by scatter sintered coatings, molybdenum or carbon linings that are joined to the carrier material using complex manufacturing processes. A new concept transforms this continuous friction lining into many single friction elements that are guided by "pockets" in the synchronizer ring. These "friction lining pads" require less material than the conventional solution (steel and friction compound) which leads to a reduction in the overall weight, especially in cases where non-metallic friction material is used. This increases the efficiency by equal performance and reduced drag torque, and also reduces the losses in the gearbox which is a benefit for fuel-saving drive trains. In addition, the material of the carrier supports higher mechanical stresses, because steel is used instead of brass. Also materials characterized by excellent friction properties when used as friction linings can be chosen. In theory almost every material can be used as friction pads, such as the already proven scatter sintered coatings or any combination of materials. Optimum friction elements for such systems include pads made with nonmetallic materials, as various resins containing friction modifiers or pads from known brass alloys.
Palhares, Fabiano Tebar, Kohtes, Pascal, de Aguiar Vendrasco, Allyson
Black passivation films without hexavalent chromium on top of electroplated layers of zinc and zinc alloys2007-01-259311/28/2007
Typical layers with cathodic corrosion protection for steel are zinc and zinc alloys. These layers are usually chromated and, for special applications, an additional organic or inorganic topcoat is applied. The most attractive finish is either black or clear. For aesthetic reasons, black coatings must be used for parts to be mounted in close vicinity of other black parts. Trivalent clear chromatings with good corrosion protection are nowadays well established in the production lines, but trivalent black chromatings are not. Development efforts were made to identify and overcome the problems and/or to find suitable workarounds. This paper will introduce a complete line of new products for producing black parts with high cathodic corrosion protection. This is: black chromiting on top of acid zinc and on top of alkaline Zn, Zn/Fe and Zn/Ni.
Boin, Camila
Ingot, Zinc Alloy (For Sheet Metal Forming Dies)AMSI7068A (Historical)9/13/2007
This specification addresses requirements for a zinc alloy used in the production of sand cast forming dies for sheet metal stamping operations.
AMS D Nonferrous Alloys Committee
LOCKWIRE, BRASSAS100016 (Historical)6/26/2007
E-25 General Standards for Aerospace and Propulsion Systems
Nickel Plating (Electrodeposited)AMSQQN290A (Historical)3/7/2007
This specification covers the requirements for electrodeposited nickel plating on steel, copper and copper alloys, and zinc and zinc alloys.
AMS B Finishes Processes and Fluids Committee
Notched Bar Izod Impact Properties of Zinc Die Castings2006-01-05134/3/2006
Notched bar Izod impact testing of zinc die cast Alloy 3, Alloy 5, ZA-8, and AcuZinc 5 was performed at five temperatures between -40 °C and room temperature in accordance with ASTM E23 for impact testing of metallic materials. A direct comparison between ASTM D256 for impact testing of plastics and ASTM E23 was performed using continuously cast zinc specimens of Alloy 5 and ZA-8 at -40 °C and room temperature. There are differences in sample sizes, impact velocity, and striker geometry between the two tests. Bulk zinc tested according to ASTM E23 resulted in higher impact energies at -40 °C and lower impact energies at room temperature then did the same alloys when tested according to ASTM D256.
Schrems, K. K., Doğan, Ö. N., Goodwin, F. E.
AM-lite & AM-HP2 - New Magnesium Alloys Offer New Opportunities2006-01-15644/3/2006
Two new magnesium die casting alloys, AM-lite and AM-HP2, have been developed which address issues related to magnesium applications. AM-lite offers considerable advantages over the existing general purpose die-casting alloy AZ91D. AM-lite has superior diecastability, significantly improved as-cast surface quality, superior surface definition, and is highly suitable for decorative surface finishing processes including electroplated in a process that is similar to zinc. AM-HP2 is a new creep resistant alloy that provides a combination of good diecastability and creep resistance at temperatures of relevance to powertrain applications.
Sweder, T. A., Abbott, T., Dunlop, G. L., Murray, M. T., Bettles, C. J., Gibson, M. A.
Comparison of Vibrational Ride Discomfort in Various Cars by New Quantitative Ride Discomfort Meter2003-01-16875/5/2003
This paper presents a recent development concerning the “New Quantitative Ride Discomfort Meter.” This invention [1]. has an original feature that is connected with medical aspects and is fundamentally different from conventional methods of measuring the vibrational ride discomfort of a vehicle [2],[3],[4]. Vehicle driving often can be the cause of lower back pain. I manufactured a mechanical model of the human lumbar spine with brass and rubber. This model can be used as a new vibrational ride discomfort meter.
Hanada, Keiichi
Selective Galvanizing Using Kinetic Spraying2003-01-12373/3/2003
General corrosion protection of sheet materials such as steel used in automobile construction has reached a high level of performance, due primarily to the incorporation of mill-applied treatments such as electrogalvanizing, galvannealing and other coil-coating processes developed over the last half century. While such treatments have greatly extended the corrosion resistance of steel and its various body constructs, attention is now focused on aspects of the manufacturing process wherein these intended protections are compromised by such features as weldments, joins, cut edges and extreme metal deformations such as hems. A novel metal deposition process, based on high-velocity impact fusion of solid metal particles, has been used to extend the corrosion resistance of base steel and pre-galvanized sheet, by selectively placing highly controlled depositions of zinc and other sacrificial materials in close proximity to critical manufacturing details. The technology of this process is reviewed and preliminary results are reported for hem flange construction.
McCune, Robert C., Ricketts, Mark S., Gao, Guilian, Neiser, Richard A., Puskar, Joseph, Roemer, Timothy J.
New Precoated Steel Products for the Improvement of Corrosion Resistance2001-01-345610/1/2001
Multicoated steel materials including prephosphating, temporary organic coatings and Zn-rich paints are being developed as alternative to the conventional metallic coated steel materials in order to improve properties such as corrosion resistance as well as formability, weldability and paintability.
Puente, J.M., Alonso, F., Mateos, P., Andrés, L., Rodríguez, M.
Bolt-Load Retention Behavior of a Die Cast Magnesium-Rare Earth Alloy2001-01-04253/5/2001
The need for improved understanding of new magnesium alloys for the automotive industry continues to grow as the application for these lightweight alloys expands to more demanding environments, particularly in drivetrain components. Their use at elevated temperatures, such as in transmission cases, presents a challenge because magnesium alloys generally have lower creep resistance than aluminum alloys currently employed for such applications. In this study, a new die cast magnesium alloy, MEZ, containing rare earth (RE) elements and zinc as principal alloying constituents, was examined for its bolt-load retention (BLR) properties. Preloads varied from 14 to 28 kN and test temperatures ranged from 125 to 175°C. At all test temperatures and preloads, MEZ retained the greatest fraction of the initial imposed preload when compared to the magnesium alloys AZ91D, AE42, AM50, and the AM50+Ca series alloys. The BLR behavior of MEZ did not show significant sensitivity to temperature within the range examined, whereas the other alloys displayed a clear decrease in bolt-load retention with increased temperature at a given preload. Retained bolt-load decreased for MEZ with increasing preload in a manner similar to the behavior of other alloys. The higher BLR can be attributed to the greater resistance to creep and arises mainly from the Mg-RE phases present at cell and grain boundaries and the relatively high solidus temperature (Ts) of MEZ. Additional means of improving BLR by varying geometrical dimensions in the bolted assembly for AZ91D and AM50 was investigated and no significant improvement were observed in the limited studies that were performed.
Moreno, Ian P., Sohn, Keun Yong, Jones, J. Wayne, Allison, John E.
Ingot, Zinc Alloy (For Sheet Metal Forming Dies)AMSI7068 (Historical)4/1/1999
This specification addresses requirements for a zinc alloy used in the production of sand cast forming dies for sheet metal stamping operations.
AMS D Nonferrous Alloys Committee
Performance of Zinc-Nickel Alloy Electrodeposits as Affected by Internal Stress1999-01-00203/1/1999
Zinc-nickel electrodeposited alloys prepared from alkaline and acid baths have been recognized for the excellent corrosion protection that they provide. For this reason these alloy deposits are included in a number of automotive specifications and are being used in a wide range of applications. One issue with these deposits is that they have the ability to “micro-crack”. Investigations into this phenomenon have suggested that the internal stress of the deposit is an important factor in the formation, and subsequently, the prevention of these micro-cracks. This paper describes the specifications for zinc-nickel alloy deposit to illustrate the performance expectations for automotive applications. The properties and characteristics of the alkaline and acid processes and the performance of the deposits are described. Then the measurement of, and characteristics of the internal stress are investigated.
English, James, Lash, Ron, Crotty, David
The Influence of Steel Coating Type and Galvanneal Coating Structure on Electrocoat Primer Paintability1999-01-00233/1/1999
The electrocoat operating windows of five automotive sheet steel products (uncoated cold rolled, electrogalvanized, hot dip galvanized, electrogalvanneal, and hot dip galvanneal) were compared. The effect of variations in base steel chemistry and galvanneal coating structure on the operating window were also evaluated. While all variations exhibited an acceptable electrocoat operating window, there was a measurable difference between the five sheet steel products. There was no effect of the galvanneal coating structure or base steel chemistry on the operating window.
Vincent, John J., James, J. Michael
Doped ZnTe: a Developmental Photorefractive MaterialTBMG-320288/1/1998
Zinc telluride is a semiconductive material that has been found to become photorefractive when it is suitably doped with vanadium or with manganese and vanadium. The combination of photorefractivity and semiconductivity make this material attractive for use in a variety of applications, including optical power limiting (for shielding eyes or delicate sensors against intense illumination), holographic interferometry, providing reconfigurable optical interconnections for optical computing and optical communication, and correcting for optical distortions and combining laser powers via phase conjugation. In comparison with other important photorefractive materials based on III-V and II-VI binary compounds, ZnTe:V offers superior photorefractive performance at wavelengths from 0.6 to 1.3 μm.
Brass, Naval, Bars and Rods 60.5Cu - 38.7Zn - 0.8Sn Half Hard (H02)AMS4611G (Historical)12/1/1997
This specification covers a copper alloy (naval brass) in the form of bars and rods.
AMS D Nonferrous Alloys Committee
Categorization of Low Carbon Automotive Sheet SteelJ2096_199709 (Current)9/15/1997
This SAE Recommended Practice establishes a nomenclature for categorizing low carbon automotive hot rolled sheet, cold rolled sheet, and zinc and zinc alloy coated sheets.
Metals Technical Committee
Specifying Zinc Alloy Coatings for Improved Galvanic Corrosion Performance9710042/24/1997
Zinc alloy coatings have been used commercially since the early 1980's. Its origin is credited to both the Japanese and Europeans, where improved corrosion protection was observed over steed components. The coatings gained acceptance among American automotive companies in response to two industry-wide directives. The first was the mandate to restrict the level of cadmium on vehicles, beginning with the 1995 model year. The other was the challenge to extend the service life of vehicles to ten years, or in effect, to develop the “ten-year” car. Alternative finishes were sought as potential replacements for cadmium. Although a single surface finish has not been identified to have all of the functional characteristics of cadmium, zinc alloy coatings have many of the desirable properties. Among them are corrosion resistance and lubricity. Also, an added benefit is the extended corrosion protection that qualifies the zinc alloy coatings for the ten-year vehicle. Standard laboratory test results such as torque tension are presented. The use of topcoats over the zinc alloy finish has been found to be an acceptable practice of achieving the torque tension properties of cadmium. The outcome of both a four-year environmental exposure evaluation, and a cyclic corrosion test support the corrosion performance gained with zinc alloys coatings. Finally, zinc alloy coatings not only have been accepted as a viable replacement for cadmium, but the coatings have become an option for improving galvanic corrosion protection on vehicular components. Specified applications including fasteners, fuel components, brake assemblies, and fluid transfer systems are reviewed.
Wing, Linda M., Commander, John
Tin Bronze Castings Sand and Centrifugal 87.5cu 10sn 2zn as CastAMS4710F (Historical)9/1/1996
This specification covers one type of brass in the form of wire. Primarily for locking wire. This specification has been delcared "NONCURRENT" by the Aerospace Materials Division, SAE, as of September 1996. It is recommended, terefore, that this specification not be specified for new designs.
AMS D Nonferrous Alloys Committee
Incorporating Zinc's Bearing Properties into Die Casting Design9607622/1/1996
It is well documented that zinc die casting is a highly efficient fabricating process which produces cost-effective, net-shape components and subassemblies. Less documented are zinc alloy's mechanical properties which enable designers to integrate bearing surfaces into an assembly without the use of inserts or more expensive materials. By taking advantage of zinc alloy's natural lubricity, designers are developing cost-effective, high-performance components and subassemblies.
Barnhurst, R. J., Sheehan, Michael
ACuZinc™ 5 Applications in the Auto Industry9607642/1/1996
ACuZinc™ 5, a GM-patented, high-performance ternary zinc-copper-aluminum alloy which is suitable for manufacturing net shape die castings, plays a vital role in the success of new automotive parts and systems. The new parts were designed to meet the auto industry's higher load and safety specifications. The superior mechanical properties of ACuZinc™ make it suitable for structural applications where commercial zinc die casting alloys have been found to be inadequate. From a business viewpoint, ACuZinc™ can help in penetrating new markets by competing for cast iron, powder metal and brass applications. ACuZinc is a registered GM trademark.
Hanna, M. D., Johnson, J. N., Rashid, M. S.
Designing Zinc Die Castings for Tomorrow's Automobile9607602/1/1996
The development of new zinc alloys and technological improvements in the die casting process offer enhanced opportunities for zinc die castings in automotive component design. Improved benefits such as lighter weight, lower cost and increased performance can be achieved by combining the required mechanical and physical properties of end-use requirements with the enhanced production capabilities of the zinc die casting process. This paper reviews the available zinc alloys and describes several automotive applications for zinc die castings where end-use requirements were evaluated and an appropriate zinc alloy was selected to meet these requirements. The high dimensional precision achievable with zinc die casting enabled their production to net or near-net shape.
Gross, Douglas K.
Comparing Zinc Castings and Plastics Properties - A Consistent Impact Test Method and Results9607612/1/1996
After examining several impact tests used for metallic materials and plastics, the ASTM D3029 multi-axial impact test was chosen as a means for obtaining impact energies for zinc Alloy 3 and ZA-8 along with a variety of injection molded engineering plastics. These materials were tested between 25 and 100°C using a range of striker velocities of 1-10 m/sec. Zinc alloys properties were sensitive to impact speed whereas plastics properties were not. The test divided these materials into ductile and more brittle classifications with both polypropylene and the polyamides behaving in the most ductile fashion. Test results are compared with the Charpy impact test for metallic materials and the zinc alloys are shown to possess lower properties using the plastics test, however the zinc alloys possess significantly higher properties using this test when compared to the plastic materials investigated.
Goodwin, Frank E.
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