Terms:
SAE International Journal of Materials and Manufacturing
AND
1
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Events

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Global Growth of Diesel Engines and PM Usage

SAE International Journal of Materials and Manufacturing

Hoeganaes Corporation-Kalathur S. Narasimhan, Eric Boreczky
  • Journal Article
  • 2008-01-1111
Published 2008-04-14 by SAE International in United States
Diesel engines are trying to make inroads in North America and growing at a steady pace globally. This article describes briefly the diesel engine and their components. Market growth is identified and a number of parts that are suitable for powder metal is indicated.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Vision Assisted Laser Marking Delivers Lean Manufacturing

SAE International Journal of Materials and Manufacturing

Virtek Laser Systems North America Inc.-Faycal Benayad-Cherif
  • Journal Article
  • 2008-01-1130
Published 2008-04-14 by SAE International in United States
To achieve permanent, high quality, non-contact marking, automotive manufacturers use laser marking processes. But, the ability to accurately position small characters in a limited space, to recognize the proper parts before being marked, and the capability to repeatedly mark in a robust way without operator's adjustments still create challenges for those who attempt to achieve lean manufacturing.Described in this paper is a high-speed vision based laser system capable of rapidly and accurately marking a large number of automotive parts of different shapes in a single pass. The vision based laser system has shown, that in a production environment, a reduction of waste, an increase in product throughput, and an improvement in the overall manufacturing cost can be achieved.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Analysis of Trimming Processes for Advanced High Strength Steels

SAE International Journal of Materials and Manufacturing

Ford Research & Advanced Engineering-Sergey F. Golovashchenko
University of Michigan-Dearborn-Andrey M. Ilinich
  • Journal Article
  • 2008-01-1446
Published 2008-04-14 by SAE International in United States
Current die design recommendations attempt to limit the production of burrs through accurate alignment of the upper and lower edges. For common automotive exterior sheet, this translates to a gap less than 0.06mm. Unfortunately, the tolerances required by such standards often exceed the capabilities of many trim dies. The objective of the research described in this paper is to study the mechanisms of burrs generation and their impact on AHSS formability in stretch flanging. Experimental results on influence of trimming conditions on the shape of the sheared surface will be combined with the results of stretching strips after trimming.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Material Cost Savings in Powder Metal Transfer Case Sprockets and Sun Gears

SAE International Journal of Materials and Manufacturing

Borg Warner-Marc Legault
Capstan Atlantic-David Pendrak
  • Journal Article
  • 2008-01-0850
Published 2008-04-14 by SAE International in United States
For years powder metal (P/M) nickel steel sprockets have been in use in the SUV Transfer Case market. The heat-treated, nickel steel powder metal provides a high strength and high wear resistant material for this very demanding application. Recently the cost of nickel has increased from $5 / lb Oct'05 to $24 / lb May'07. Because of this almost 5 fold increase in the commodity price a replacement material for the powder metal nickel steel was sought that would have comparable properties, comparable processing steps at a raw material cost that would be equal to the nickel steel powder metal prices of 2005. A replacement material was found that has comparable properties at a competitive price. Material composition, testing data and microscopic analysis will be presented.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Parametric Shape Optimization

SAE International Journal of Materials and Manufacturing

Chrysler LLC-Dhananjay S. Joshi, Xijia Zhu, Kanwerdip Singh
  • Journal Article
  • 2008-01-1431
Published 2008-04-14 by SAE International in United States
External aerodynamic simulations are becoming more important because of regulatory pressures on fuel economy improvements and shorter design cycles. Experimental work is typically done on scaled models to get drag and cooling flow information. This is a time consuming process. Numerical simulations might provide a complementary path to get the answers in a timely manner. This paper discusses one such approach.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Study of Alternative Oxygen Reduction Electrocatalyst for Pt Based on Transition Metal Chalcogenides

SAE International Journal of Materials and Manufacturing

Toyota Central R&D Labs., Incorporation-Kazuhiko Dohmae
Toyota Motor Corporation-Yukiyoshi Ueno, Hirofumi Iisaka
  • Journal Article
  • 2008-01-1265
Published 2008-04-14 by SAE International in United States
The development of an alternative oxygen reduction electrocatalyst to platinum based electrocatalysts is critical for practical use of the polymer electrolyte membrane fuel cell (PEMFC). Transition metal sulfide chalcogenides have recently been reported as a possible candidate for Pt replacement. Our work focused on chalcogenides composed of ruthenium, molybdenum, and sulfur (RuMoS). We elucidate the factors affecting electrocatalytic activity of carbon supported RuXMoY SZ catalyst. This was demonstrated through a correlation of oxygen reduction reaction (ORR) activity of the catalysts with structural changes resulting from designed changes in sulfur composition in the catalysts.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Strain Field Measurement in the Vicinity of Ductile Rupture from Digital Image Correlation

SAE International Journal of Materials and Manufacturing

General Motors Co.-Vesna Savic, Louis G. Hector
  • Journal Article
  • 2008-01-0856
Published 2008-04-14 by SAE International in United States
A methodology that enables two-dimensional strain field measurement in the vicinity of ductile rupture is described. Fully martensitic steel coupons were strained to fracture using a miniature tensile stage with custom data and image acquisition systems. Rupture initiated near the center of each coupon and progressed slowly toward the gage section edges. A state-of-the-art digital image correlation technique was used to compute the true strain field before rupture initiation and ahead of the resulting propagating macroscopic crack before final fracture occurred. True strains of the order of 95% were measured ahead of the crack at later stages of deformation.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Valve Guide for High Temperature Applications

SAE International Journal of Materials and Manufacturing

Eaton Corporation-Simon L. Narasimhan, Sinharoy Shubhayu, Mark J. Birler
Engineered Sintered Components-Ryuchiro Goto, Heron A. Rodrigues
  • Journal Article
  • 2008-01-1110
Published 2008-04-14 by SAE International in United States
Sintered valve guides are increasingly used in various engine applications due to their superior durability and cost. Typical valve guide materials are low alloyed materials of the type Fe-Cu-C. More severe applications may require higher alloying content. One such application is EGR where the exhaust temperatures are much higher as compared to the conventional automotive valve guide. A new material was developed to work in this harsh environment. The object of this paper is to report development of this material including material properties and durability test results.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Rotary Fatigue Analysis of Forged Magnesium Road Wheels

SAE International Journal of Materials and Manufacturing

Ford Motor Company-Naiyi Li
University of Windsor-Robert Shang, William Altenhof, Henry Hu
  • Journal Article
  • 2008-01-0211
Published 2008-04-14 by SAE International in United States
Fatigue analysis incorporating explicit finite element simulation was conducted on a forged magnesium wheel model where a rotating bend moment was applied to the hub to simulate rotary fatigue testing. Based on wheel fatigue design criteria and a developed fatigue post-processor, the safety factor of fatigue failure was calculated for each finite element. Fatigue failure was verified through experimental testing. Design modifications were proposed by increasing the spoke thickness. Further numerical and experimental testing indicated that the modified design passed the rotary fatigue test.
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

SmooSteelâ„¢: an Innovative and Lightweight Steel / Polymer Material for Front Fender Application

SAE International Journal of Materials and Manufacturing

ArcelorMittal Global Auto-Fanny Langevin
ArcelorMittal Montataire, R&D Automotive Applications-Marjolaine Doux
  • Journal Article
  • 2008-01-1080
Published 2008-04-14 by SAE International in United States
The product here presented is a steel-based product developed by ArcelorMittal for weight reduction of vehicles. The driving idea was to combine ease of both steel forming and painting processes, with the polymer small impact compliance by colaminating a thin steel sheet with a polymer film.SmooSteelâ„¢ has been validated for the front fender application, showing weight reductions of 20 to 35% with an attractive weight-saving cost, small impact compliance increased by up to 400%, and being equivalent to monolithic reference in terms of dent resistance, deep drawing, handling, or thermal stability.
Annotation ability available