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Tech Front


institutions—in support of manufacturing education is outlined in the update from SME’s Manufacturing Education & Research community. Ongoing efforts emphasize the importance of manufacturing and well-educated workforce


to a robust economy. The central role of the “Four Pillars of Manufacturing Knowledge” model is described as well. Several other new tech papers are from the SME Annual Conference breakouts sessions on “Innovations That Could Change the Way You Manufacture.” Au- thors from General Motors Global R&D (www.gm.com/design-technology; War- ren, MI) describe a multi-ring domed electrode for aluminum resistance spot welding (TP13PUB55). The greatest benefit of this technology is the large


Forged carbon fiber composite struc- ture with short carbon fiber tows.


resistance spot welding process window that it displays for welding of aluminum sheet, extrusion, casting or combina- tions thereof, while also achieving high weld quality and eliminating surface expulsion. 3D printing of silicon micro and nano structures by ion implanta- tion, silicon deposition and selec- tive silicon etching (TP13PUB58) is described by authors from KTH Royal Institute of Technology (www.kth.se; Stockholm, Sweden). The proposed technology could change and greatly simplify the fabrication of many MEMS, NEMS and silicon photonic devices without requiring a fully equipped semi- conductor cleanroom. ME TechFront is edited by Senior Editors


Patrick Waurzyniak, pwaurzyniak@sme. org, and Ellen Kehoe, ekehoe@sme.org.


All SME Technical Papers are available by entering the paper number or a keyword in the search box at http://tinyurl.com/searchsme.


34 ManufacturingEngineeringMedia.com | December 2013


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