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Panel games
At the launch of the Lotus Europa S last autumn, chief of design Russell Carr said the form of a design should reflect the spirit of the car. As Steve Snook reports, designers are adopting a variety of approaches to create the exterior panels that help shape that spirit |
01/09/2007
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Ball-and-socket fastener allows trim demounting
A new type of fastener based on the well-known BigHead design allows trim and panels to be demounted. A ball-and-socket construction is the key innovation of the Poppit fastener. |
01/09/2007
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‘Instant grab’ hot-melts ease assembly
In a new formulation of hot melt technology, the instant green strength of pressure-sensitive adhesives (PSAs) has been combined with the performance of a cross-linked silicone assembly sealant, writes Roger Bishop. |
01/03/2007
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Organic layer bonds into metal surfaces
A patent-pending mechanical lapping process creates an organic layer that bonds into the metal surface through mechanical reaction, writes Roger Bishop. |
01/09/2006
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Chemists advance high strength composites
There is a growing trend to use dilution technology as a cost-effective route for technically demanding injection moulded applications. This technology reduces the quantity of compounded material used by diluting a concentrated long glass fibre compound with reactor polypropylene (PP) at the injection moulding stage. |
01/02/2006
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Flexible PVC foam tapes
Scapa has launched two high temperature PVC foam tapes coated on one side with an aggressive, pressure-sensitive adhesive. They are designed for NVH and water sealing applications in the automotive industry. |
01/02/2006
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Coating breakthrough cuts VOCs and CO2
Toyota, Daihatsu and Kansai Paint claim to have developed a water-borne coating technology that reduces emissions of volatile organic compounds (VOCs) by 70 per cent and carbon dioxide by 15 per cent compared with traditional coating processes. |
01/04/2005
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Anti squeak coating reaches a new low
A new coating said to be a viable alternative to silicone-based products used on weather seals is claimed to offer new levels of noise reduction and freeze-release properties. |
01/04/2005
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Sunshine heals clearcoat scratches
Researchers at Bayer MaterialScience have developed an automotive coating that uses the warmth of the summer sun to heal the fine abrasions and scratches that result from hand or car wash cleaning, writes Roger Bishop. They simply disappear, according to a recent technical note. |
01/04/2005
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SL delivers giant realistic parts
When Plastic Omnium came up with the concept of fixing headlights onto a bumper module instead of the vehicle — first seen at the 2003 IAA Show in Frankfurt — the company then had to move quickly to prove its concept to vehicle-makers by manufacturing convincing prototypes. |
01/03/2005
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Secondary sun-baking strengthens aluminium
Scientists have found that if the high temperature ageing process used to strengthen aluminium components is interrupted and the material allowed to undergo secondary ageing at ambient temperature, it becomes 20 per cent tougher. |
01/01/2005
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Making gear-shifting a tactile experience
Dura Automotive Systems is using a special moulding process involving the sequential injection of plastics with widely varying properties to develop gearknobs with optimised properties of tactile feedback, stability and wear resistance. |
01/11/2004
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Floating nuts line up for location
A PEM ‘floating panel nuts’ initially designed for the automotive industry in the USA can be inserted during the stamping process. It was designed with the Pemserter ‘in-die press system’ in mind.
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01/10/2004
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Nano particles transform PBT production
Adding organic nano-particles that fundamentally change the rheology of the base polymer has enabled a global supplier of PBT (polybutylene terephthalate) to dramatically reduce the viscosity of glass-filled grades. It is believed to be the first application of nano-particle technology in plastics. |
01/10/2004
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Double the grip claimed for blind insert
A new design of blind insert is said to double the grip range on soft materials, thin-walled plastics and composites, while providing new levels of joint clamp and pullout resistance with fewer fasteners. |
01/10/2004
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Semi-solid casting advance cuts costs
A casting technique using semi-solid metals in a runner-based high-pressure die-casting (HPDC) process is said to be capable of producing high quality aluminium and magnesium parts at low cost, writes Duncan Leslie. |
01/10/2004
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