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Tougher than steel: Wood pulp could make lighter auto parts

KYOTO, Japan — The global push among carmakers to make ever lighter vehicles is leading some auto suppliers in Japan to turn to what seems like an unlikely steel substitute — wood pulp. Japanese researchers and auto component makers say a material made from wood pulp weighs just one-fifth of steel and can be five times stronger. The material - cellulose nanofibers — could become a viable alternative to steel in the decades ahead, they say, although it faces competition from carbon-based materials, and remains a long way from being commercially viable.> Related: Jay Leno drives the Renew cannabis car — hemp you can't dent Reducing the weight of a vehicle will be critical as manufacturers move to bring electric cars into the mainstream. Batteries are an expensive but vital component, so a reduction in car weight will mean fewer batteries will be needed to power the vehicle, saving on costs. "Lightweighting is a constant issue for us," said Masanori Matsushiro, a project manager overseeing body design at Toyota. "But we also have to resolve the issue of high manufacturing costs before we see an increased use of new, lighter-weight materials in mass-volume cars."A NEW PROCESS Researchers at Kyoto University and major parts suppliers such as Denso Corp, Toyota's biggest supplier, and DaikyoNishikawa Corp, are working with plastics incorporated with cellulose nanofibers — made by breaking down wood pulp fibers into several hundredths of a micron (one thousandth of a millimeter). Cellulose nanofibers have been used in a variety of products ranging from ink to transparent displays, but their potential use in cars has been enabled by the "Kyoto Process," under which chemically treated wood fibers are kneaded into plastics while simultaneously being broken down into nanofibers, slashing the cost of production to roughly one-fifth that of other processes. "This is the lowest-cost, highest-performance application for cellulose nanofibers, and that's why we're focusing on its use in auto and aircraft parts," Kyoto University Professor Hiroaki Yano, who is leading the research, told Reuters in an interview. The university, along with auto parts suppliers, are currently developing a prototype car using cellulose nanofiber-based parts to be completed in 2020.

Latest Forza Motorsport 5 car pack leaves us scratching our head (in a good way) [w/video]

As we scrolled down the roster of the latest car pack for Forza Motorsport 5, the Hot Wheels Car Pack, our expression became bemused over the strange mix of vehicles that we now have at our disposal. This is quite unlike any of the other sets of DLC Turn 10 Studios has offered. Sure, there are the typical headliner cars – the Lamborghini Veneno and 2015 Audi S3 – that will appeal to the mainstream racing fan or auto enthusiast. But this latest car pack is so jammed full of nuggets of automotive weirdness that it's hard not to get excited. The Hot Wheels pack has no shortage of racers, with a particular focus on historical offerings. A 1939 Auto Union Type D covers the pre-war era of Formula One, while a 1967 Lotus 49 and a 1952 Ferrari 375 represent post-war racing. For a modern twist, a Mazda USF2000 car slots in below the Indy Lights car from the Nurburgring booster pack. From here, things get vintage and weird. There are a pair of delightfully offbeat coupes, in the form of a 1974 Toyota Celica GT and a 1973 Ford XB Falcon GT (here's hoping we get a vintage Holden Monaro in the future). Those two are joined by a 1956 Ford F-100, which your author already plans on converting into a dragster with vinyl flames down the side (because that's what all vintage pickups should be). The new ride we're most excited about, though, is the 1983 GMC Vandura G-1500. Yes, that's the van from The A-Team, and we're sure it will prove to be an excellent canvas for the artists of FM5 to cover with airbrushed, fire-breathing unicorns and mystical, gray-haired wizards (or just poorly painted letters that read "Free Candy"). This latest car pack is the final monthly car pack for FM5, although Turn 10 is quick to point out that while the monthly updates are over, there will still be new batches of cars made available to gamers. As for the Hot Wheels pack, it's available now on Xbox Live for $9.99. Scroll down for the press release from Turn 10 Studios, as well as a video of the newest additions to Forza Motorsport 5's vehicle roster. Forza Motorsport 5 Hot Wheels Car Pack Now Available Turn 10 Studios is bringing the Hot Wheels® Car Pack to "Forza Motorsport 5," available for download today. The pack features a collection of vehicles built from the ground up for the new generation that car fans can collect and customize while putting their virtual driving skills to the test.

Toyota to suspend 18 assembly lines as production restarts post-quake

TOKYO - Japanese manufacturers began restarting production at plants in the country's quake-hit northeast, but Toyota Motor Corp said it plans to idle 18 assembly lines for a few days next week due to a shortage of parts from suppliers. It had suspended operations at three factories due to the quake and sees lost production of 20,000 units due to the stoppages. Toyota has already cut its global production target due to the ongoing chip shortage. The suspension will cut heavily into Toyota's domestic production. Impacted product lines include the Toyota RAV4, Land Cruiser, Harrier and Yaris and virtually every Lexus. Toyota did not say whether these shutdowns could extend to U.S.-based production lines, but the possibility exists if they receive parts from the same suppliers.  On one hand, the limited damage caused by the magnitude 7.4 temblor has highlighted Japan's success in building resilience against the frequent tremors that shake the archipelago. But the quake has sparked concerns of further disruptions to a pandemic-hit supply chain for precision components vital to electronics and autos production and in which Japanese manufacturers play a leading role. Murata Manufacturing Co Ltd, the top global supplier of ceramic capacitors used in smartphones and cars, said it restarted production on Friday at two stopped plants with the remaining two idled plants to restart next week. A fire that broke out at a factory which produces chip inductors caused some damage to equipment. Renesas Electronics Corp, which makes nearly a third of the microcontroller chips used in cars globally, said it has restarted production after stopping it at two factories with a partial stop at a third. All three factories, including the Naka factory where fire broke out last year, are expected to return to pre-quake capacity by Wednesday, Renesas said. Power has mostly been restored across the northeast, which suffered Japan's biggest earthquake 11 years ago. Areas of Tokyo lost power for nearly three hours after the latest quake, in which three people died and 183 were injured. The blackout has forced the disposal of some COVID-19 vaccines held in cool storage, the Yomiuri newspaper reported. Tech conglomerate Sony Group Corp is in the process of gradually restarting production at three factories in the quake-hit area, a spokesperson said.