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2015-11-02 ...
  • November 2-6, 2015 (3 Sessions) - Live Online
Training / Education Online Web Seminars
Today's transportation industries are facing multi-disciplinary challenges. The product design and development process challenges often contradict each other, for example cost, weight, quality and performance. A central challenge is the need for cost and mass reduction to compete in the global market, while continuing to meet all new and existing requirements for quality and performance. Accelerated Concept to Product (ACP) Process is a performance-driven, holistic, product design development method intended to create a balance between structure and strength, synchronizing the individual facets of the product development process.
2015-09-29 ...
  • September 29-October 1, 2015 (2 Sessions) - Live Online
Training / Education Online Web Seminars
Today's transportation industries are facing multi-disciplinary challenges. The product design and development process challenges often contradict each other, for example cost, weight, quality and performance. A central challenge is the need for cost and mass reduction to compete in the global market, while continuing to meet all new and existing requirements for quality and performance. Accelerated Concept to Product (ACP) Process is a performance-driven, holistic, product design development method intended to create a balance between structure and strength, synchronizing the individual facets of the product development process.
2015-08-10 ...
  • August 10-11, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Plastic - any class of synthetically-produced organic compounds capable of being molded and hardened into a specific shape or form. This course is designed to offer a basic understanding of plastics and plastic processing. Using plastics can be simple, but there is much more behind producing high performance plastic parts. This seminar will walk you through the molding process, provide a comprehensive look at the variables in the manufacturing mix, and review characteristics of typical automotive plastics such as PP, PVC, ABS, and more.
2015-05-25 ...
  • May 25-26, 2015 (8:30 a.m. - 4:30 p.m.) - Shanghai, China
  • July 27-28, 2015 (8:30 a.m. - 4:31 p.m.) - Warrendale, Pennsylvania
  • September 24-25, 2015 (8:30 a.m. - 4:30 p.m.) - Seattle, Washington
Training / Education Classroom Seminars
The September offering of this seminar will be conducted at the Sheraton Seattle Hotel and held in conjunction with the SAE 2015 AeroTech Congress & Exhibition. Register for this offering and you can register to attend the SAE 2015 AeroTech Congress & Exhibition for 25% off the classic member event rate.
2015-05-18 ...
  • May 18-19, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • November 9-10, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Welding is one of the most important and widely used of the joining processes, providing distinct advantages in mechanical performance, ease of implementation, cost and adaptability. This seminar will provide engineers with applicable knowledge related to metallurgy, stress analysis and welding processes which will enable them to consider design, analysis, implementation and inspection of welds for their respective products.
2015-04-23
Event
This session deals with the manufacture of detail parts through laser sintering, stereo lithography, fused deposition modeling, and other emerging technologies. The session will explore technologies and methods for producing net or near net parts in various resins, plastics and metals directly from a CAD model that could employ design architectures that couldn't be achieved by other manufacturing methods.
2015-04-22
Event
We are seeking papers related to welding and joining of similar or dissimilar materials of plastics, composites, aluminum, magnesium, titanium, and conventional and advanced high strength steels. Papers related to friction stir (spot) welding, ultrasonic welding, resistance welding, arc welding, laser welding, brazing or soldering, riveting and bolting, and adhesive joining are welcome. Papers related to strength, fracture and fatigue of welds, joints and fasteners are also welcome.
2015-04-20 ...
  • April 20-21, 2015 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
  • October 29-30, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Attendees to the seminars held in conjunction with the SAE 2015 World Congress will receive COMPLETE access to Congress activities for only $55 per day. If interested, please contact our Customer Service department at +1.877.606.7323 (U.S. and Canada only) or +1.724.776.4970 (outside U.S. and Canada) to register for this special Congress daily rate. Preventing future problems and troubleshooting existing problems in today's stamping plants requires greater stamping process knowledge. The link between inputs and outputs isn't as clear as many think, increasing the need for detailed understanding of the variables involved.
2015-04-20 ...
  • April 20-21, 2015 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
  • August 3-4, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • December 14-15, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Attendees to the seminars held in conjunction with the SAE 2015 World Congress will receive COMPLETE access to Congress activities for only $55 per day. If interested, please contact our Customer Service department at +1.877.606.7323 (U.S. and Canada only) or +1.724.776.4970 (outside U.S. and Canada) to register for this special Congress daily rate. This seminar introduces participants to all aspects of threaded fasteners including nomenclature, geometric considerations, metallurgy, material properties, applied stresses, and considerations for fatigue, corrosion, brittle fracture and temperature.
2015-04-14
Technical Paper
2015-01-0701
Anupam Vivek, Bert Liu, Daniel Sakkinen, Mark Harris, Glenn Daehn
Vaporizing Foil Actuators (VFA) are based on the phenomenon of rapid vaporization of thin metallic foils and wires caused by passage of a capacitor bank-driven current, on the order of 100 kAmps. The burst of the conductor is accompanied with a high-pressure pulse which, as in the case of VFA, can be used for working metal at high strain rates. VFA have been applied toward a variety of impulse-based metal working operations such as collision welding, embossing, shearing, dynamic powder consolidation, shape calibration, and closed-die forming. While other applications are discussed briefly, this paper focuses on the use of VFA for collision welding of dissimilar metals, in particular, aluminum and steel. Aluminum alloy 6061 sheets of 1mm thickness were launched to velocities in excess of 800 m/s with input electrical energy of 8 kJ into 0.0762mm thick, dog-bone shaped aluminum foil actuators.
2015-04-14
Technical Paper
2015-01-0505
Miguel Angel Reyes Belmonte, Colin D. Copeland, Drummond Hislop, George Hopkins, Adrian Schmieder, Scott Bredda, Sam Akehurst
Pressure and temperature levels within a modern internal combustion engine cylinder have been pushing at the limits of traditional materials and design. These operative conditions are due to the stringent emission and fuel economy standards that are forcing automotive engineers to develop engines with much higher power density ratios. In this scenario, downsized, turbocharged engines are an important technology to meet the future demands on transport efficiency. It is well known that within downsized turbocharged gasoline engines, thermal management becomes a vital issue for durability and combustion stability. In order to contribute to the understanding of engine thermal management, a conjugate heat transfer analysis of a downsized gasoline piston engine has been performed. The intent was to study the design possibilities afforded by the use of the Selective Laser Melting (SLM) additive manufacturing process.
2015-04-14
Technical Paper
2015-01-0705
Koichi Taniguchi, Hiroshi Matsuda, Rinsei Ikeda, Kenji Oi
High joint strength of resistance spot welds is necessary for high rigidity and reliability of car body using ultra high strength steel (UHSS) sheets with tensile strength over 980MPa. We developed “pulsed current pattern” consisting the combination of short cool time and short-time high-current post-heating. This new process can achieve high cross tension strength (CTS) with sufficient tensile shear strength (TSS) in shorter welding time than conventional temper pattern. This paper presents the heating pattern and the effect on the joint strength by pulsed current pattern. Finite element analysis (FEA) for post-heating patterns was conducted using SORPAS. Temperature dependent material properties of 1180MPa grade steel were taken into account. FEA shows that the short-time high-current post-heating leads to rapid heating in nugget and heat affected zone (HAZ) compared to conventional temper pattern consisting long-time low-current post-heating.
2015-04-14
Technical Paper
2015-01-1736
Justin Cartwright, Ahmet Selamet, Robert Wade, Keith Miazgowicz, Clayton Sloss
The heat rejection rates and skin temperatures of a liquid cooled exhaust manifold on a Ford 2011 3.5L TiGTDI engine are determined experimentally using an external cooling circuit, which is capable of controlling the manifold coolant inlet temperature, outlet pressure, and flow rate. The manifold is equipped with a jacket that surrounds the collector region and is cooled with an aqueous solution of ethylene glycol-based antifreeze to reduce skin temperatures. Results were obtained by sweeping the manifold coolant flow rate from 2.0 to 0.2 gpm for a total of 12 engine operating points of increasing brake power up to 220 hp. The nominal inlet temperature and outlet pressure were 85 degC and 13 psig, respectively. Data were collected under steady conditions and time averaged. For the majority of operating conditions, the manifold heat rejection rate is shown to be relatively insensitive to changes in manifold coolant flow rate.
2015-04-14
Technical Paper
2015-01-0598
Xiaona Li, Changqing Du, Yongjun Zhou, Xin Xie, Xu Chen, Yaqian Zheng, Thomas Ankofski, Rodrigue Narainen, Cedric Xia, Thomas Stoughton, Lianxiang Yang
Accurate forming limit strain determination of aluminum sheet metal is an important topic which has not been fully solved by the industry. Also, if the draw bead effects (enhanced forming limit behaviors) reported on steel sheet metals also happens on aluminum sheets metals is not fully understand. This paper introduce an experimental study on draw bead effect of aluminum sheet metals by measuring the forming limit strain zero (FLD0)of the sheet metal. Two kind of aluminum, AL 6016-T4 and AL 5754-0, are used. Virgin material, 40% draw bead material and 60% draw bead material situations are tested for each kind of aluminum. Marciniak punch tests are proceeded to create plane strain condition. A dual camera Digital Image Correlation (DIC) system is used to record and measures the deformation distribution history during the punch test. The on-set necking timing is determined directly from surface shape change. The FLD0 of each test situation is reported in this article.
2015-04-14
Technical Paper
2015-01-1723
Dieter Gabriel, Thomas Hettich
Fuel economy legislation is requiring further improvements to piston friction reduction as well as additional gains in thermal efficiency. A piston material change from aluminum to steel is enabling advancements in both demands. Furthermore, steel material properties lead to increased piston strength, robustness and durability. All this can be achieved at a lower compression height compared to an aluminum reference piston. Therefore, piston mass can be reduced despite the increase in material density. Since steel pistons require cooling of the combustion bowl region and the ring belt just like the aluminum counterpart, MAHLE implemented a new innovative metal joining technology by using laser welding to generate a cooling gallery. The TopWeld concept offers design flexibility which cannot be matched by any other welding process.
2015-04-14
Technical Paper
2015-01-0733
Nichole Verwys, Jesse Fritcher, Thomas DeMass
Dark, high gloss decorative finishes (i.e. piano black) are gaining increased applications and demands in vehicle interiors; due to interior stylists desire for this look . One significant concern with this trend is that scratches and other appearance-related defects such as orange peel (waviness) are more apparent to the customer. To address this issue, a highly scratch-resistant 2K clearcoat formulation was developed to minimize visible surface scratches, while also yielding minimal orange peel and exceptional DOI (distinctness of image); all while being applied using typical application techniques in the part finishing market. This output was accomplished by first bench-marking the consumer electronics market for appearance and scratch resistance, and then setting targets through that research.
2015-04-14
Technical Paper
2015-01-1313
Donald Jasurda
In the automotive world, thermal expansion and gravity on assembly processes in manufacturing often account for unexpected variation. Issues related to the effects of these forces can cause not just assembly issues, but can also be the cause of non-conformance and warranty problems later in the product life cycle. Using 3d CAD models, engineers can now take advantage of advances in simulation to predict the effect of both thermal forces and gravity on their assembly and processes before production. By designing out these influences through a combination of tooling, process and tolerance changes, manufacturers can reduce the costs stemming from these common issues. This whitepaper delves into the process of simulating the effect of both these forces on automotive structures using real life examples and models based on customer experiences.
2015-04-14
Technical Paper
2015-01-1612
Wei Liu, Gangfeng Tan, Jiafan Li, Xin Li, Fuzhao Mou, Yongqiang Ge
The hydraulic retarder is a significant auxiliary braking device for the heavy duty vehicle. Traditionally, cooling circulation of the hydraulic retarder was coupled with the engine cooling system, and the thermal energy of the transmission oil would be cooled by the engine radiator ultimately. For this scheme, radiator’s spare heat removal capacity could be fully utilized whereas the cooling system is very complicated and is hard to maintain. Furthermore, the corresponding of thermal management system lags behind the power change of the retarder. In this research, integrated cooling evaporation system is developed for the hydraulic retarder, which makes the cooling water contact with the transmission oil through the wall of the fixed wheel so that it can rapidly response to the thermal variation of the retarder, keep the stability of the oil temperature and meanwhile reduce the risk of cooling medium leakage.
2015-04-14
Technical Paper
2015-01-0737
Sadegh Poozesh, Nelson Akafuah, Kozo Saito
Lack of a precise control over paint droplets released from current coating sprayers has motivated this study to an atomizer capable of generating a uniform flow of mono-dispersed droplets. In the current study a numerical investigation based on CFD incorporating volume of fluid (VOF) multiphase model has been developed to capture interface between air and paint phases for a typical digital atomizer equipped with piezoelectric actuator. Effects of inlet flow rate and actuator frequency on ejected droplets characteristics, droplet diameter and their successive spacing, are studied in detail. It will be shown that for a determined flow rate of paint, there is an optimum actuator frequency in which droplet size is minimum. Finally, by looking at atomization mechanism, the most optimum flow rate with corresponding optimum frequency will be determined.
2015-04-14
Journal Article
2015-01-0744
Terrence Alger, Raphael Gukelberger, Jess Gingrich, Barrett Mangold
The use of cooled EGR as a knock suppression tool is gaining more acceptance worldwide. As cooled EGR become more prevelant, some challenges are presented for engine designers. In this study, the impact of cooled EGR on peak cylinder pressure was evaluated. A 1.6 L, 4-cylinder engine was operated with and without cooled EGR at several operating conditions. The impact of adding cooled EGR to the engine on peak cylinder pressure was then evaluated with an attempt to separate the effect due to advanced combustion phasing from the effect of increased manifold pressure. The results show that cooled EGR's impact on peak cylinder pressure is solely due to the knock suppression effect, with the result that an EGR rate of 25% leads to an almost 50% increase in peak cylinder pressure at a mid-load condition. When combustion phasing was held constant, increasing the EGR rate had no effect on PCP.
2015-04-14
Journal Article
2015-01-0537
Hong Tae Kang, Abolhassan Khosrovaneh, Xuming Su, Yung-Li Lee, Mingchao Guo, Chonghua Jiang, Zhen Li
Magnesium alloys have low weldability, thus self-piercing rivet (SPR) joint is one of options for joining them. This research investigates the fatigue performance of SPR for magnesium alloys including AZ31, AM30, and AM60. Lap-shear and coach peel specimens for these alloys are fabricated and tested for understanding fatigue performance of the joint. Structural stress – life (S-N) curves are developed with the test results. This approach is validated with simple structural specimens that include three or two joints in each specimen. It is also intensively studied to identify the proper representation of the joint in finite element models.
2015-04-14
Journal Article
2015-01-0525
Constantin Chiriac, Ming F. Shi
Automotive structural parts made out of Advanced High Strength Steel (AHSS) are often produced in a multistage forming process using progressive dies or transfer dies. During each forming stage the steel is subjected to work hardening, which affects the formability of the steel in the subsequent forming operation. Edge flanging and in-plane edge stretching operations are forming modes that are typically employed in the last stage of the multistage forming processes. In this study, the multistage forming process was simulated by pre-straining a DP980 steel in a biaxial strain path with various strain levels followed by edge flanging and in-plane edge stretching. The biaxial prestrains were obtained using the Marciniak stretch test and edge flanging and in-plane edge stretching were accomplished by the hole expansion test using a flat punch and a conical punch, respectively.
2015-04-14
Journal Article
2015-01-0706
Zheng-Ming Su, Pai-Chen Lin, Wei-Jen Lai, Jwo Pan
Failure mode and fatigue behavior of dissimilar laser welds in lap-shear specimens of low carbon steel (LC) and high strength low alloy (HSLA) steel sheets was investigated. Micrographs show that the failure modes of laser welds under quasi-static and cyclic loading conditions were quite different. Under quasi-static loading conditions, the upper sheet was separated at the base metal region. Under low-cycle loading conditions, the weld failure appeared to be initiated from the pre-existing crack tips and then failed by the ductile fracture through the upper right (LC) sheet. Under high-cycle loading conditions, the weld failure appeared to be initiated from the left pre-existing crack tip and then failed by the kinked fatigue crack propagating through the lower left sheets (HSLA). In general, the fatigue lives are longer for the specimens failed through the HSLA steel sheets than those failed through the LC steel sheets.
2015-04-14
Journal Article
2015-01-1754
Wei-Jen Lai, Jwo Pan
The analytical stress intensity factor and J integral solutions for welds in lap-shear specimens of two dissimilar sheets are presented in the normalized forms. The analytical solutions were selectively validated by two-dimensional finite element analyses. The interface crack parameters, the stress intensity factor solutions, and the J integral solutions for welds in lap-shear specimens of different combinations of steel, aluminum, and magnesium, and the combination of aluminum and copper sheets of different thickness ratios are then presented for convenient fracture and fatigue analyses. The transition thickness ratios for critical crack locations for different combinations of dissimilar materials are then determined from the analytical solutions. The transition weld widths for applicable ranges of the weld widths for the analytical solutions based on the beam bending theory are also presented.
2015-04-14
Technical Paper
2015-01-1371
Samuel T. Bartlett
With the many model variations produced on the same production line because of increasing power train options, fuel efficiency targets, performance and customer demands we saw limitations with our existing suspension mount equipment. Layout options were limited due to guided shifts and transfers. Large supporting frame work took up valuable floor space. Model wheelbase sizes and suspension pallets were limited to the model requirements of the original equipment. We needed an adaptable system to install the engine/front suspension assemblies and the rear suspension assemblies. We found a solution by utilizing the capabilities of 6-axis industrial robots to make the core components of the equipment simpler; many of the functions of a traditional machine can now be accomplished by the robot. We were able to vary install position to optimize handling characteristics and accommodate the model-to-model varieties on the same production line.
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