The word is in: An article in yesterday’s New York Times declares that stainless steel is better than plastic bottles for the environment–if one stainless bottle takes the place of at least 50 plastic bottles. The two writers of the column are developing a software product that conducts lifecycle assessments. They issued their verdict on stainless steel bottles after taking into account the environmental impacts of mining iron ore, chromium, and nickel, transporting them large distances, making the steel, transporting the steel, fabricating the bottles, and so on.
I can’t comment on the quality of the argument because zero data is provided on any of the inputs, and no information at all is provided on the plastic product.Assuming they are correct, however, isn’t this a little strange? Under what circumstances would someone use a stainless steel bottle to drink water? A hike maybe. No, stainless is too heavy. And how does stainless steel get into the recycling stream? Do you take it to a car shredder? What if people re-fill plastic bottles to drink water?
And what about the environmental waste of printing this silliness on half a page of the New York Times and distributing it across North America to a million people?
Instead of sifting through huge amounts of technical data looking for answers to assembly problems, engineers can now benefit from 3M's new initiative -- 3M Assembly Solutions. The company has organized its wealth of adhesive and tape solutions into six typical application areas, making it easier to find the best products to solve their real-world assembly and bonding problems.
Many of the materials in this slideshow are resins or elastomers, plus reinforced materials, styrenics, and PLA masterbatches. Applications range from automotive and aerospace to industrial, consumer electronics and wearables, consumer goods, medical and healthcare, as well as sporting goods, and materials for protecting food and beverages.
Engineers trying to keep track of the ever-ballooning number of materials and machines for additive manufacturing and 3D printing now have some relief: a free searchable database with more than 350 machines and 450 different materials.
At JEC Europe Dow Automotive introduced a new ultra-fast, under-60-second molding cycle time for its commercial-grade VORAFORCE 5300 epoxy resin matrix for carbon composites. It's aimed at high-volume automotive manufacturing.
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