Gas assist was coupled with coinjection for this Kubota sub-compact utility tractor to reduce resin content and minimize cost. Kubota and Bemis Contract Group of Lenoir, NC, partnered on the redesign to eliminate a paint requirement, simplify assembly, consolidate parts and improve the product's versatility and appearance. One of the solutions was molded-in color, said to be the first in this industry category. The coinjection tool provides the hood with integral mounting features that ease assembly, and improve driver visibility. Coinjection also allows use of reprocessed core materials. Gas assist was used for the structural hand rails that were consolidated with thin wall control covers. The materials used for the project were thermoplastic olefin (TPO), glass-filled (15 percent) polypropylene and an alloy of polycarbonate and PBT.
A bold, gold, open-air coupe may not be the ticket to automotive nirvana for every consumer, but Lexus’ LF-C2 concept car certainly turned heads at the recent Los Angeles Auto Show. What’s more, it may provide a glimpse of the luxury automaker’s future.
The complexity of diesel engines means optimizing their performance requires a large amount of experimentation. Computational fluid dynamics (CFD) is a very useful and intuitive tool in this, and cold flow analysis using CFD is an ideal approach to study the flow characteristics without going into the details of chemical reactions occurring during the combustion.
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