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Viewing 151 to 180 of 21021
2017-01-10
Technical Paper
2017-26-0168
Ajeet Babu P K, Jibin Babu, M R Saraf
Abstract Forging is a metal forming process involving shaping of metal by the application of compressive forces using hammer or press. Forging load of equipment is an important function of forging process and the prediction of the same is essential for selection of appropriate equipment. In this study a hot forging material i.e. 42CrMo4 steel is selected which is used in automotive components like axle, crank shaft. Hot forging experiments at 750°C are carried out on cylindrical specimens of aspect ratio 0.75 and 1.5 with true height strain (ln (ho/hf)) of 0.6. Forging load for the experiments is calculated using slab and upper bound deformation models as well as Metal forming simulation using commercially available FEA software. The upper bound models with 30% deviation from the simulation results are found to be more accurate compared to the slab models.
2017-01-10
Technical Paper
2017-26-0173
Surbhi Bhagwat, Vinod Kumar Mannaru
Abstract Forging is one of the traditional bulk metal forming processes used extensively in the automotive industry. Forging has a distinct advantage versus other metal manufacturing processes in terms of strength, grain orientation, reliability, near net shape with lower material utilization, and machining requirements leading to cost effectiveness, etc. Today, the automotive industry is going through the critical phase of reducing component costs through material reduction and optimized tool consumption. With this challenge, process modeling is gaining more momentum in the industry to optimize blank size and improve the tool life with required part quality, while also evaluating press tonnage requirements for effective equipment usage. It also enables integrated process modeling by understanding the microstructure, residual stress/deformation built into the manufactured part, and integrating with material property changes for subsequent part performance prediction.
2017-01-10
Technical Paper
2017-26-0175
Muhammad Ali Siddiqui, Hein Koelman, Prashant Sharad Shembekar
Abstract Composite manufacturing in the automotive industry is striving for short cycle times to be competitive with conventional manufacturing methods, while enabling significant weight reductions. High Pressure Resin Transfer Molding (HP-RTM) is becoming one of the processes of choice for composite applications due to its ability to enable high speed part production. In this regard, researchers need to offer differentiated ultra-fast curing resin systems for carbon fiber composites for automotive structural and nonstructural applications to enable Original Equipment Manufacturers (OEMs) to meet their large volume lightweight targets in concert with present day low-carbon footprint legislations. In order to expand applications for composites in the automotive industry it is necessary to optimize all aspects of the production cycle using predictive modeling.
2017-01-10
Technical Paper
2017-26-0238
Abhijit Kumbhar, Jagannath M Paranjpe, Nagesh Karanth
Abstract New process development of forging component requires in-depth knowledge and experience related to the process. Also it requires number of physical trials to arrive at optimum process and initial billet dimensions. With the help of reliable computer simulation tool, it is possible to optimize the complete forging process and billet dimensions. Simulation provides much more insight about the process and possible forging defects. This saves considerable time and money. This paper describes about a complete forging process designed for a complex component. With the help of metal forming simulation software, complete forging process was simulated and optimized. Forging defects were removed during optimization of the process. Billet weight optimization was also carried out. Deciding the preforming shape of the billet was the main challenge. An innovative pre-forging shape was arrived which resulted in eliminating one process stage.
2017-01-10
Journal Article
2017-26-0222
Vishal Vasantrao Chaudhari, V Radhika, R Vijay
Abstract First time right vehicle performance and time to market, remains all automotive OEMs top priority, to remain competitive. NVH performance of product communicates impression to customer, remains one of the most important and complex attribute to meet, considering performances to be met for 20 Hz -6000 Hz. Frontloading techniques (FEM/BEM/SEA/MBD) for NVH are critical and necessary to achieve first time right NVH performance. Objective of this paper is to present a frontloading approach for automotive sound package optimization (absorber, barrier and damper elements) for SUV vehicle. Current process of designing sound package is mainly based on experience, competitive benchmarking of predecessor products. This process (current process) heavily depend on testing and validation at physical prototype and happens at later stages of program, especially on tooled up body.
CURRENT
2017-01-05
Standard
AMS4787G
This specification covers a gold-nickel alloy in the form of wire, rod, sheet, strip, foil, pig, powder, shot, chips, preforms and a viscous mixture (paste) of the powder in a suitable binder.
CURRENT
2017-01-05
Standard
AMS4121J
This specification covers an aluminum alloy in the form of bars, rods, and wire.
CURRENT
2017-01-05
Standard
AMS6435G
This specification covers a premium aircraft-quality, low-alloy steel in the form of sheet, strip, and plate.
CURRENT
2017-01-05
Standard
AMS4291J
This specification covers an aluminum alloy in the form of die castings.
CURRENT
2017-01-04
Standard
AMS4544H
This specification covers a corrosion-resistant nickel-copper alloy in the form of sheet, strip, and plate.
CURRENT
2017-01-04
Standard
AMS4676F
This specification covers a corrosion-resistant nickel-copper alloy in the form of bars, forgings, and forging stock.
CURRENT
2017-01-04
Standard
AMS4574F
This specification covers a corrosion-resistant nickel-copper alloy in the form of seamless tubing.
CURRENT
2017-01-04
Standard
AMS4677C
This specification covers a corrosion-resistant nickel-copper alloy in the form of bars, forgings, and forging stock.
CURRENT
2017-01-04
Standard
AMS4675E
This specification covers a corrosion-resistant nickel-copper alloy in the form of bars 0.093 to 4.000 inches (2.35 to 100.00 mm) in diameter or distance between parallel sides, and forgings and forging stock of any size (see 8.5).
CURRENT
2017-01-04
Standard
AMS4910R
This specification covers a titanium alloy in the form of sheet, strip, and plate up to 4.000 inches (101.60 mm), inclusive, in thickness.
CURRENT
2017-01-04
Standard
AMS4245F
This specification covers an aluminum alloy in the form of welding wire.
CURRENT
2017-01-04
Standard
GEIASTD0003A
This document provides an industry standard for Long Term Storage (LTS) of electronic devices by drawing from the best long term storage practices currently known. LTS is defined as any device storage for more than 12 months but typically allows for much longer (years). While intended to address the storage of unpackaged semiconductors and packaged electronic devices, nothing in this standard precludes the storage of other items under the storage levels defined herein. This standard is not intended to address built-in failure mechanisms (e.g., tin whiskers, plating diffusion, and intermetallics) that would take place regardless of storage conditions
CURRENT
2017-01-03
Standard
AMS4335A
This specification establishes requirements for 2xxx-series and 7xxx-series aluminum alloy forgings of any shape or form from which finished parts are to be made. (See 8.2, 8.3, 8.4, 8.5.4, 8.6 and 8.8.)
CURRENT
2017-01-03
Standard
AMS5132L
This specification covers a high-carbon steel in the form of bars.
CURRENT
2017-01-03
Standard
AMS5664F
This specification covers a corrosion and heat resistant nickel alloy in the form of bars, forgings, flash welded rings 10 inches (254 mm) and under in least nominal cross-sectional dimension, and stock of any size for forging or flash welded rings (see 8.5).
CURRENT
2017-01-03
Standard
AMS4779H
This specification covers a nickel alloy in the form of wire, rod, strip, foil, and powder and a viscous mixture (paste) of the powder in a suitable binder.

This filler metal has been used typically for joining corrosion and heat resistant steels and alloys requiring corrosion and oxidation resistant joints with good strength at elevated temperatures, but usage is not limited to such applications. This filler metal may also be used as a corrosion and oxidation resistant hard coating.

2016-12-21
WIP Standard
AMS2808E
This specification covers requirements for identification of forgings, including die forgings, hand forgings, and rolled rings.
2016-12-21
Book
This is the electronic format of the Journal.
2016-12-20
Article
Industrial aluminum slabs are typically produced by blending small amounts of copper or manganese in a reservoir of molten aluminum that is rapidly cooled, a process known as direct-chill casting. Variations in the way these elements solidify can yield uneven results that weaken the final product.
CURRENT
2016-12-15
Standard
AMS6525E
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings.
CURRENT
2016-12-15
Standard
AMS7498R
This specification covers flash welded rings made of titanium and titanium alloys.
CURRENT
2016-12-14
Standard
AMS4313E
This specification covers aluminum alloy rolled or forged rings up to 6 inches (152 mm) which are produced and shipped in the –T351 or –T352 temper and are artificially aged to the –T82 temper prior to being put into service.
CURRENT
2016-12-14
Standard
AMS6305G
This specification covers a premium aircraft-quality, low-alloy, heat-resistant steel in the form of bars, forgings, mechanical tubing, and forging stock.
CURRENT
2016-12-14
Standard
AMS6260S
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
Viewing 151 to 180 of 21021

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