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Viewing 1 to 30 of 2798
2017-04-06
Event
Presentations of this session will address application and research on coatings for exterior body and plastics (including polycarbonate) as well as vehicle interiors and underbody/underhood. Focus will be on the 3-10 year timeframe.
2017-04-06
Event
Presentations related to welding and joining of similar or dissimilar materials of plastics, composites, aluminum, magnesium, titanium, and conventional and advanced high strength steels will be given. Papers related to friction stir (spot) welding, ultrasonic welding, resistance welding, arc welding, laser welding, brazing or soldering, riveting and bolting, and adhesive are planned as well. Papers related to strength, fracture and fatigue of welds, joints and fasteners have been invited.
2017-04-06
Event
Presentations related to welding and joining of similar or dissimilar materials of plastics, composites, aluminum, magnesium, titanium, and conventional and advanced high strength steels will be given. Papers related to friction stir (spot) welding, ultrasonic welding, resistance welding, arc welding, laser welding, brazing or soldering, riveting and bolting, and adhesive are planned as well. Papers related to strength, fracture and fatigue of welds, joints and fasteners have been invited.
2017-04-06
Event
Presentations of this session will address application and research on coatings for exterior body and plastics (including polycarbonate) as well as vehicle interiors and underbody/underhood. Focus will be on the 3-10 year timeframe.
2017-04-05
Event
Presentations related to welding and joining of similar or dissimilar materials of plastics, composites, aluminum, magnesium, titanium, and conventional and advanced high strength steels will be given. Papers related to friction stir (spot) welding, ultrasonic welding, resistance welding, arc welding, laser welding, brazing or soldering, riveting and bolting, and adhesive are planned as well. Papers related to strength, fracture and fatigue of welds, joints and fasteners have been invited.
2017-03-28
Technical Paper
2017-01-0508
Gabor Kiss, Yuya Ando, Martin Schifko
After the e-coating the paint on the surface is like a sponge and carry liquid which slowly drains off. The retain water carries about 5-10 liter for 100mm² BIW surface area. When the retain water drains off, residual liquids may areas at areas nobody is expecting. These liquids are potential causers in the oven either to destroy the corrosion protection mainly caused by boiling or may lead to bake drips. The density of the residual liquid is changing during the heating process in the oven. Depending on the evaporation of residual puddles and density change the total volume may increase although the weight is getting less. This is the critical situation which may lead to bake drips. In this talk we would outline our technology which allows to predict retain water behavior and the arising of bake drips successfully
2017-03-28
Technical Paper
2017-01-1270
Xiaoming Chen
As future vehicles need to improve fuel economy, the use of magnesium for lightweight component is increasing to enable fuel consumption reductions. The finite element modeling of magnesium, especially at limit states can be improved by incorporating shear behavior. Three shear strain coupon test samples were developed for magnesium alloys. The samples generated shear failures in the specimens while using a uniaxial servo-hydraulic load frame. Three dimensional digital image correlation was used to optically measure the full-field strain on the surface of the test specimens. Finite element simulations were conducted on selected shear samples for steel and aluminum using magnesium material input to locate shear zones. Initiators were created to force material damage to initiate in the shear zones. The samples were tested using cast magnesium AM60 and extruded magnesium EZ20. The results showed that damage and material separation in all samples started at the initiators.
2017-03-28
Technical Paper
2017-01-1268
Xiaoming Chen
In recent years, lightweight structure designs become one of the major trends in automotive industry. There are four major aspects that are considered to develop lightweight automotive structures, including using advanced materials, manufacturing methods, design optimization, and additional cost of weight saved assessment. This paper presents the development work of a lightweight subframe for a compact car using Magnesium Casting design. The subframe design needs to meet NVH, strength, and durability, corrosion, and joint strength as well. CAE tools are heavily used to generate and validate the structural performance of the design, including topology and shape optimization, static stiffness, modal, strength and durability analyses. A prototype is also built for component and field tests to validate the feasibility of this design, including component modal test, strength test, and durability test, and vehicle proving ground durability test.
2017-03-28
Technical Paper
2017-01-0505
Aditi Chavannavar
Polyurethane dispersions (PUDs) have seen rapid growth in recent years as alternatives to their solvent based analogs. They offer the advantages of enabling low VOC formulations while providing superior appearance and mechanical properties. Polyurethane-acrylic hybrids combine the advantages of a polyurethane dispersion with the benefits of an acrylic emulsion. This synergistic combination offers properties such as good hardness development and chemical resistance in addition to enhanced mechanical properties. In this paper, we discuss new PUD-acrylic hybrids that are NMP and solvent free, have a pendulum hardness of 100 oscillations compared to a standard acrylic emulsion that has 80; and offer excellent scratch and abrasion resistance equivalent to that of an acrylic system. In addition to these, the new polyurethane dispersions provide good haptic qualities and have excellent adhesion to plastic substrates such as ABS, PC, PMMA and PVC.
2017-03-28
Technical Paper
2017-01-0507
Christian K. Riener, Anna-Elisabeth Raab PhD, Gerald Luckeneder, Martin Rosner
In the last decade a new Zinc-Magnesium-Aluminium coating (ZM-coating) for HDG steel sheet was developed at voestalpine. Unlike the well-established ZnAlMg-coatings from Japan which have significant higher alloying contents (for building applications), this ZincMagnesium coating (ZM) is also specifically designed to meet the requirements of car manufacturers. voestalpine's ZM-coating (corrender) is already approved by many OEMs and is currently used in the car body as a substitute for GI. Typical applications are structural as well as exposed parts. The ZM-coating introduced by voestalpine is in the upper range of ZM-alloying compositions, which was set by SAE and VDA (German Association of the Automotive Industry) to be within 1.0 to 2.0 wt% Mg and 1.0 to 3.0 wt% Al. The properties of these “European” Zinc-Magnesium coatings are well comparable within this range.
2017-03-28
Technical Paper
2017-01-0468
Raj S. Roychoudhury
Plastic hollow articles are used in automotive applications such as high pressure fluid bottles, active globe box knee airbags, etc. Welding of plastic hollow articles to create a pressure vessel is a challenge. The weakest points are usually the weld seam where the part tends to separate under internal pressure. The reason for the weakness is that the weld is configured as an L-shaped joint and the loading is in peel. The L-shaped weld joint is the result of the injection molding limitations such as die lock and also the welding process adopted with its perceived design limitations. A new weld design to form plastic hollow articles is conceived. Its design is T-shaped such that the joint loading under pressure is no longer in peel but in tension, vertically to the weld surface. This weld design can be easily achieved, overcoming the limitation of die lock in injection molding and by the hot plate weld design adopted for this welding.
2017-03-28
Technical Paper
2017-01-0484
Harchetan Singh Aneja, Harmeet Singh, Aashish Parmar, Rohan Sharma
The automotive industry, known for its competitiveness & innovations globally, researches for continuous improvement of part performances along with reduction of cost & weight. These are amongst the top priority goals across all OEMs. In the long list of automobile parts, pipe clamps have paved their way of design through generations from being of metal to plastic that has expanded its scope of application & performance. In an automobile, plastic clamps are widely used to hold single or multiple water, fuel or brake pipes of various diameters to vehicle body at various locations such as underbody (prone to stone chipping) or engine room (prone to high temperatures), etc. Plastic clamps are preferred over metallic clamps for their cost, weight, performance & productivity. Primarily, in all application areas, a clamp must be able to hold the pipes with consistent & sufficient performance that is quantified through parameters such as thrust force and pipe removal force.
2017-03-28
Technical Paper
2017-01-0489
Hyunkwon Jo, Jaemin Park, Heeseung Yang, Hyunchul Lee, Hyunmin Park
Automotive industry faced the intense competition have been tried to lower product prices as well as satisfy performance in order to secure demands. Various ways to reduce manufacturing cost in this market environment have been approached, especially shortening manufacturing time has been mainly proposed. Because traditionally shortening manufacturing time activities took place in production sites, so they were not systematical and limited so the effect was less than expected. To overcome this, these activities should extend to development stage of product. Recently many plastic products have been widely used in automobile parts for light weight to improve fuel efficiency. The manufacturing process of such as plastic parts consists of injection molding and assembling parts. The process of injection molding process takes longer than other assembling if the product is big or complicated.
2017-03-28
Technical Paper
2017-01-0125
Marco Pizzi, Mauro Zorzetto, Alberto Barbano, Piercarlo Merlano, Luca Vercellotti
The reduction of emissions in gasoline and diesel engines is driving the introduction of systems implementing additives in liquid form: in particular water for injection systems in gasoline engines and urea solutions (AD-blue) in SCR systems in diesel engines. Unfortunately water and AD-Blue can freeze in the car operative temperature range. In both cases the tanks must be equipped with heaters to guarantee a sufficient amount of additives in liquid form. Currently used technologies are ceramic PTC elements and distributed metal resistors. Ceramic PTC based heaters concentrate all the power in small volumes. They need thermally conductive elements distributing the power over a wide area. The assembly is complex and the cost of the metal parts and related packaging technologies used to insulate the heater from the environment (water or urea) is typically high. Metal resistors are cheaper but must be controlled in current.
2017-01-12
WIP Standard
AMS3713E
This specification covers honeycomb core made of polymide paper sheets in a non-hexagonal, flexible cell configuration and supplied in the form of blocks, slices, and ordered shapes. This honeycomb core has been used tyipcally in sandwich structures in single or compound curvature parts requiring high strength and corrosion resistance in the temperature range -55 to +82 degrees C (-67 to +180 degrees F) but usage is not limited to such applications.
2017-01-10
Journal Article
2017-26-0243
Atish Gawale, Abhijit Kulkarni, Mark Pratley
Abstract The demand for injection molded reinforced plastic products used in the automotive industry is growing due to the capability of the material for volume production, high strength to weight ratio, and its flexibility of geometry design. On the other hand, the application of fiber filled plastic composites has been challenging and subject of research during past decades due to the inability to accurately predict the mechanical strength and stiffness behavior owing to its anisotropic characteristics. This paper discusses a numerical simulation based technique using multiscale (2 scale Micro-Macro) modeling approach for short fiber reinforced plastic composites. Fiber orientation tensors and knit lines are predicted in microscale analysis using Autodesk Inc.’s Moldflow® software, and structural analysis is performed considering the homogenized structure in macroscale analysis using ANSYS® software tool.
2016-12-21
WIP Standard
AMS3582B
This specification covers a crosslinked polyvinyl chloride plastic in the form of flexible, thin-wall, heat-shrinkable tubing. Primarily for use as a flexible, electrical insulation tubing whose diameter can be reduced to a predetermined size by heating to 175 degrees C (345 degrees F) or higher. This tubing is stable for continuous exposure from -20 to +105 degrees C (-5 to +220 degrees F).
2016-12-21
WIP Standard
AMS3579E
This specification covers a non-crosslinked polyvinyl chloride plastic in the form of flexible, thin-wall, heat-strinkable tubing with a low recovery temperature.

These products have been used typically as a flexible, electrical insulation tubing whose diameter can be reduced to a predetermined size by heating to 150 degrees C (302 degrees F) or higher, but usage is not limited to such applications. This tubing is stable for continuous exposure from -20 to +105 degrees C (-4 to 221 degrees F).

2016-12-21
WIP Standard
AMS3593B
This specification covers an irradiated, thermally-stabilized, flame-resistant, modified-polyvinylidene-fluoride plastic in the form of extra-thin-wall tubing. Primarily for use as a semi-rigid, electrical insulation tubing and marker sleeves in short lengths whose diameter can be reduced to a predetermined size by heating to temperatures of 175 degrees C (347 degrees F) or higher.
2016-12-21
WIP Standard
AMS3683B
This specification covers a thermally-stabilized, irradiated modified fluoropolymer in the form of very-thin-wall tubing. This tubing has been used typically as a flexible, electrical insulation tubing whose diameter can be reduced to a predetermined size by heating to 150 degrees C (302 degrees F) or higher, but usage is not limited to such applications.
2016-11-30
WIP Standard
J361
This SAE Recommended Practice applies to parts and materials used in vehicle manufacture which are intended to be acceptable color matches to a specified standard. This document is intended for use with parts or materials which are opaque or nearly so. Materials covered by this document include topcoat paint finishes, interior soft trim, interior and exterior hard trim, and exterior film and flexible trim. This practice requires judgments by observers with a minimum of normal color vision and preferably superior as rated with the FM-100Hue Test as specified in ASTM E1499, Guide for Selection, Evaluation, and Training of Observers.
2016-11-08
Technical Paper
2016-32-0021
Stephen Gurchinoff
Abstract This technical paper will provide supporting lubricated test data for the use of thermoplastics like polyamide-imide (PAI) and polyetheretherketone (PEEK) in demanding wear applications at temperatures up to 285°C and pressure velocity exceeding one million psi·ft/min. Applications include needle bearing replacement in transmissions, journal bearings, pumps, marine lower units, continuous variable transmissions, and others. These materials have been used in automotive transmission applications for over 20 years and can be similarly used in small engine applications. By using a thermoplastic, applications benefit through reduced noise and vibration harshness, reduced space, and reduced weight. Mechanical property differences throughout operating temperatures will also be reviewed.
2016-11-08
Journal Article
2016-32-0024
Daisuke Sugio, Shinpei Okazaki, Mitsuo Kaneko
Abstract Glass fiber reinforced plastic of polyamide is applied as one of the materials used for the high strength exterior parts of a motorcycle, such as a rear grab rail or a carrier, to which both strength and good exterior appearance are required. However, Glass Fiber reinforced Polypropylene (PPGF), which is relatively inexpensive material, has a property that the contained glass fibers are prone to be exposed at the surface and, therefore, the requirements for good appearance are hardly met by using PPGF. In this study, Heat and Cool molding method (H&C molding) was employed to realize a cost reduction by using PPGF yet without applying painting process, and the established method was applied to mass production while fulfilling the requirements for a good exterior appearance. In H&C molding, the metal molds are heated up by steam and cooled down by water after molding.
2016-11-02
Event
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