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Test Strip, Holder, and Gage for Shot Peening

Surface Enhancement Committee
  • Ground Vehicle Standard
  • J442_202002
  • Current
Published 2020-02-27 by SAE International in United States
This SAE Recommended Practice defines requirements for equipment and supplies to be used in measuring shot peening arc height and other surface enhancement processes. Guidelines for use of these items can be found in SAE J443 and SAE J2597.
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Minimization of High Temperature Oxidation, Aluminum Alloy Heat Treatment

AMS D Nonferrous Alloys Committee
  • Aerospace Standard
  • ARP7500
  • Current
Published 2020-02-05 by SAE International in United States
This recommended practice provides recommendations for minimizing high temperature oxidation (HTO) during the heat treatment of aluminum alloy products and parts. HTO leads to deterioration of properties.
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Effects of Grinding Parameters on Surface Quality in High-Speed Grinding Considering Maximum Undeformed Chip Thickness

SAE International Journal of Materials and Manufacturing

Southeast University, China-Lu Zhang, Mingxia Kang, Wencheng Tang
  • Journal Article
  • 05-13-02-0010
Published 2020-01-27 by SAE International in United States
Grinding is a precision machining process that is widely used to achieve good surface integrity and inish. In order to study and reveal the influence of grinding process parameters such as grinding depth, feed speed, and wheel linear speed on the surface quality of the slider raceway, a series of single-factor grinding experiments under different grinding parameters are carried out on high-speed precision surface grinding machine in this research. 3D surface profiles of the slider raceway are obtained after the grinding experiments. An image processing method is employed to evaluate the surface quality of slider raceway by surface roughness, height distribution function, skewness, and kurtosis. Vibrations of spindle and workpiece, maximum undeformed chip thickness (MUCT), and grinding force are taken into consideration to reveal the correlation between grinding parameters and surface quality. The results indicate that increasing the grinding depth, wheel speed, and feed speed will all lead to an increase in the surface roughness of the slider raceway to some extent. The study finds that wheel speed and feed speed are the more significant…
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Cutting Edge - Double Bevel Cross Sections

MTC1, Loaders, Crawlers, Scrapers and Mounted Attachments
  • Ground Vehicle Standard
  • J738_202001
  • Current
Published 2020-01-15 by SAE International in United States
This standard is for cutting edge sections typically used in earth-moving machinery defined in SAE J1116 and ISO 6165: a Scrapers as defined in ISO 7133. b Dozers as described in ISO 6747. c Loaders as described in ISO 7131. d Graders as described in ISO 7134. Hole spacing is defined ISO 7129. Hole conformation is defined in SAE J740.
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Titanium Alloy, Round Bar and Wire 3Al - 8V - 6Cr - 4Mo - 4Zr Consumable Electrode Melted Solution Heat Treated and Cold Drawn

AMS G Titanium and Refractory Metals Committee
  • Aerospace Material Specification
  • AMS4957G
  • Current
Published 2020-01-14 by SAE International in United States
This specification covers a titanium alloy in the form of round bar and wire, 0.625 inch (15.88 mm) and under in nominal diameter or thickness.
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Design Treatment for Advanced Metals Enables Easier Machining

  • Magazine Article
  • TBMG-35802
Published 2020-01-01 by Tech Briefs Media Group in United States

Exotic and advanced metals are used in aircraft, orthopedic components, medical instruments, cars, solar panels, military equipment, and other applications. They are referred to as advanced or exotic because they are more difficult to find and more costly to use in manufacturing.

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Reducing the High Cost Of Titanium

Aerospace & Defense Technology: December 2019

  • Magazine Article
  • 19AERP12_03
Published 2019-12-01 by SAE International in United States

Titanium is neither a precious metal nor rare, yet among industrial metals it has the reputation for being very expensive. It's the fourth most abundant metallic element and the ninth most abundant of all the elements in the earth's crust. Its commercially useful oxide ore occurs in the minerals rutile and ilmenite and numerous iron ores, and exploitable ore deposits are liberally scattered around the world in Australia, Canada, India, Malaysia, Norway, Russia, South Africa and the U.S. But due to its properties and high cost it has often been referred to as unobtanium.

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Magnesium Alloys in Aircraft Seats - Engineering Design and Fabrication Recommended Practices

Aircraft SEAT Committee
  • Aerospace Standard
  • ARP6256
  • Current
Published 2019-10-31 by SAE International in United States
This document is a guide to the application of magnesium alloys to aircraft interior components including but not limited to aircraft seats. It provides background information on magnesium, its alloys and readily available forms such as extrusions and plate. It also contains guidelines for “enabling technologies” for the application of magnesium to engineering solutions including: machining, joining, forming, cutting, surface treatment, flammability issues, and designing from aluminum to magnesium.
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Parameter Optimization during Minimum Quantity Lubrication Turning of Inconel 625 Alloy with CUO, Al2O3 and CNT Nanoparticles Dispersed Vegetable-Oil-Based Cutting Fluid

Vellore Institute of Technology-Venkatesan Kannan, Devendiran Sundararajan
Published 2019-10-11 by SAE International in United States
Inconel 625, nickel based alloy, is found in gas turbine blades, seals, rings, shafts, and turbine disks. On the other hand, the manufacturing of this alloy is challenging, mainly when machining processes are used due to excellent mechanical properties. Application of nanofluids in minimum quantity lubrication (MQL) shows gaining importance in the machining process, which is economical and eco-friendly. The principal objective of this investigational work is to study the influence of three types of nanofluids in the MQL turning of Inconel 625 nickel based alloys. The used nanofluids are multi-walled carbon nanotubes (CNT), alumina (Al2O3) and copper oxide (CUO) dispersed in vegetable oil. Taguchi-based L27 orthogonal array is used for the experimental design. The parameter optimization of design variables over response is carried out by the use of Taguchi-based derringer's desirability function. The design variables are machining parameters (speed, feed), nanofluids (Al2O3, CNT, CUO), and three different weight percentage (0.1, 0.25, and 0.5 wt. %). The results showed that minimum values of surface roughness could be achieved at 0.10 wt. % of nanoparticles, CNT…
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Design and Analysis of Aluminium-Flyash Composite for Connecting Rod

Geethanjali College of Engg. and Tech.-Suresh Nuthalapati, Devaiah Malkapuram
Published 2019-10-11 by SAE International in United States
In this modern era of rapid growth of technology and need of economical machining processes and materials, there is an increasing demand for new materials for different mechanical applications. Composites with fly ash as reinforcement are likely to overcome the cost barrier for wide spread applications in automotive and small engine applications. To improve wettability, elements such as Mg and Si are added into Al melt to incorporate the ceramic particles. The chemical composition and engineering properties of fly ash, its physical and chemical properties make it an ideal raw material for producing various application based composites. The main objective is to fabricate an Aluminium- Flyash composite material suitable for parts like engine connecting rod which demand high strength and temperature sustainability at comparatively less weight. The composite will be made using casting process and Engine connecting rod will be designed in AutoCAD software. The design will be analyzed with the help of Ansys with Aluminium and Aluminium- Flyash composite (at different compositions).
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