b'Design for Manufacturing with the customer on opportunitiesranging from sheet metal to steels, to reduce complexity and identifyaluminum and exotics and high-areas in which we could save moneytemperature steel alloys, said CEO require completely different manu- on the tooling. We also obtain back- and President Daniel Siegel. As a facturing strategies. ground information on how the partjob shop, we are generally unable will be used and the type of plas- to ask for changes to part designs Design for Manufacturing tic that will be molded. We need toexcept occasionally for reduced tol-Fraser, Michigan-based Eifel Inc.have a comprehensive understand- erances or further specifications. knows these concerns well. It spe- ing of the customers needs. For instance, customers sometimes cializes in production and prototypeDesigningformanufacturinggive us CAD files without the tol-tooling for automotive interiors, asoften includes not only the designerances for each hole, and thats well as advanced tooling for theof a part but incorporation of partsomething we have to verify.medical and aerospace industries. fixturing. Macro Tool & MachineThe inability to change the de-We typically work with H13 andCo. Inc. in LaGrangeville, New York,sign of customer parts has resulted S7 steels for abrasive plastics, saidbegan as a local job shop in 1968.in the development of fixturing that Richard Hecker, second-generationThe company now services a na- delivers precise repeatability and owner and CEO. For more conven- tionwide customer base, includ- shortened changeover times. Know-tional plastic parts, we use a mildering aircraft and military aerospace,ing that such challenges were not steel, such as P20. Our process typ- medical implants and tools, sport- unique to his company, he devel-ically starts when we get a 3D partingequipmentandautomotiveoped a line of pallet-type tooling design. After reviewing the designapplications. systems, indexers, single and dou-internally, we frequently consultWe work in a variety of metals,ble vises, and pallet-mounted chucks A mold for a steering wheel is machined using P20 steel.Eifel32SEPTEMBER 2020DesigningParts.indd 32 8/17/20 10:24 AM'