One of the best showcases in new plastics technology is the annual competition in automotive plastics held by the Society of Plastics Engineers. This year’s grand prize, announced last night, went to General Motors for backlighting using color-converting plastic in the Tahoe SUV. The patented system for producing custom-colored interior backlighting via LEDs (fed through light distribution pipes) uses fluorescing dyes and proprietary light-scattering additives in translucent resins used to mold buttons, knobs, and backlit plates rather than expensive custom-colored LED bulbs. The change in color control makes backlighting in low-volume, niche colors economically feasible. The system supplier is Delphi Electronics & Safety with material from RTP, BASF, and Bayer MaterialScience. The tool was made by Kno-Mar Tool in Clearwater, FL.
An in-depth survey of 700 current and future users of 3D printing holds few surprises, but results emphasize some major trends already in progress. Two standouts are the big growth in end-use parts and metal additive manufacturing (AM) most respondents expect.
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