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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.

Toyota ready to get dirty with new TRD Pro Series

To the general public, Toyota is often thought of as a maker of bland but dependable cars, crossovers and SUVs that get their owners and a whole herd of whatever from Point A to Point B. Generally speaking, they're fuel efficient, comfortable and affordable. What the general public may not realize, however, is that Toyota enjoys a very strong history of going off road, too. The legendary Land Cruiser arguably established the trend, helping explore remote parts of the globe, while various guerilla warfare outfits and world military branches have unwittingly joined up with the boys from Top Gear to help cement the Hilux pickup's reputation for invincible performance. Now, though, Toyota is launching a new line of trucks and SUVs in the US that are even more explicitly targeted at hitting the trails. Meet the TRD Pro Series.
Featuring the 4Runner, Tacoma and Tundra, each Pro Series vehicle features TRD-tuned springs with Bilstein shocks, a TRD front skid plate, a TRD shifter, black wheels, branded floor mats and a "TOYOTA" grille badge, the latter of which harkens back to classic models. TRD Pro Series vehicles will be offered in the new Inferno paint color shown above, as well as Black and Super White.
The Tundra benefits from softer TRD springs that also provide a two-inch lift and a better ride in the rough, while the truck itself rides on 18-inch wheels with Michelin ORP tires. Each truck gains an extra two inches of wheel travel in front and 1.25 inches in back, while a TRD dual exhaust should generate a nicer sound than the trucks's standard V8 engine. Finally, a unique interior with red contrast stitching freshen up the cabin. We wouldn't go so far as to call this a Ford F-150 SVT Raptor fighter - far from it, in fact - but it's a bit more off-road oriented than your average pickup.

Japanese earthquakes send ripples through auto industry

The earthquakes since April 14 in Japan's Kumamoto Prefecture on the island of Kyushu are having aftershocks on the US auto industry, particularly for Toyota. The company shut down most of its factories in the country due to parts shortages, and the plants will be closed at least through April 23. "Decisions regarding recommencement of operation at plants in Japan will be made on the basis of availability of parts," the company said in a statement. According to Automotive News, Toyota's closed factories include a vast range of popular models in the US, including the Toyota Prius, Mirai, RAV4, 4Runner, Land Cruiser, Lexus ES, LS, IS, GS, RC, NX, RX, GX, and LX. The company's only sites in Japan that are still open build Hino trucks, Daihatsu models, and the Toyota Century limo. Toyota isn't yet sure whether these shutdowns could lead to vehicle shortages in the US. "As you can imagine, we are still reviewing the situation and working to learn more," company spokesperson Aaron Fowles told Autoblog. "While we know that production will be suspended in stages at most of our vehicle assembly facilities in Japan between April 18th and the 23rd, we do not know if they will continue production suspensions. Also, any effects to our inventory and/or sales have yet to be determined." He expects the automaker to know more in the coming days. Many of the affected Toyota plants aren't even in Kumamoto Prefecture, but major suppliers have factories in the region. For example, Aisin Seiki and Renesas Electronics both had to shutdown operations at plants in the area, according to Automotive News. Toyota isn't the only automaker affected. Nissan experienced a brief slowdown but was back to work on Monday, and Honda has suspended a motorcycle plant in the region until Friday. Mitsubishi had to close a production line due to the parts shortage, according to The Japan Times, but it didn't affect US models. "A supplier to our Mizushima plant has been impacted but they only supply an engine part for our mini car line. That line has been temporarily shut down due to that situation," spokesperson Alex Fedorak told Autoblog. "That same plant builds the Lancer and i-MiEv and there has been no impact to that line and production continues uninterrupted." Two major quakes hit Kumamoto Prefecture around Kumamoto city in the past week. The first on April 14 measured 6.4 magnitude, and a second on April 16 measured 7.3.