Summary / Abstract
Title: FACTORIES SLOW TO ACCEPT PDM
Synopsis: FACTORIES SLOW TO ACCEPT PDM
?God is in the details,? according to architect Ludwig Mies van der Rohe. The expression applies as much to modern manufacturing as it does to building design. The amount ...
Title: FACTORIES SLOW TO ACCEPT PDM
Synopsis: FACTORIES SLOW TO ACCEPT PDM ?God is in the details,? according to architect Ludwig Mies van der Rohe. The expression applies as much to modern manufacturing as it does to building design. The amount ...
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factories slow accept pdm ?god details ? architect ludwig mies van der rohe expression applies modern manufacturing building design amount data necessary make single enormous detail important 8 000 10 000 car 2 500 files associated single files come drawings three-d models specifications stereolithography files analyses types created designers manufacturing engineers produce data drawings models jigs fixtures tools process plans assembly instructions require files toolpaths three-axis machining laser cutting wire electrical discharge machining edm edm machine heat-treated metals alloys cut complex cavities standard machine tools reach making edm electrodes single complex engine component require 800 separate toolpaths toolpaths generated special three-d models developed manufacturing original master model created design engineers ascii-format documents explain tools mounted machine setups required produced changes made design production large number related computer files changed number files multiplies difficult toolmakers machinists right information unfortunately pdm systems design engineers don t work people actually make products bruce dobras manufacturing consultant 40 years experience works independent contractor employee eds computer services firm owned general motors thing dobras says pdm systems expensive machine shops relatively inexpensive pc-based systems autocad cadkey solution 3000 design tooling managers don t pay thousands dollars programs manage files ?you purchased $1 000 extension windows file manager ? says dobras estimates five percent companies making tooling formal pdm systems today expensive pdm systems adapted handle manufacturing files exception cimatron product data manager cpdm announced july 1997 cpdm system actually licensed version smarteam pdm smart solutions ltd integrated cimatron cad system designing molds dies toolpaths two-and-a-half five-axis milling drilling turning punching wire-edm operations software lets manufacturing engineers organize information projects link information title block directly bill material employing pdm system factory workers learn windows explorer manage projects manufacturing engineer build microsoft access database track metadata related project files dobras says successful companies seen done good job file manager microsoft windows 95 nt combined simple databases track information simple organizing strategies manufacturing operations work better complex pdm systems dobras seen big pdm projects fall flat ?we struggled eds ten 12 years develop data-management strategy finalized i keep contact companies boeing chrysler renault knowledge effective top-down data-management system ? reason pdm systems work manufacturing process models imposed pdm software inflexible best toolmakers plan says dobras job requirements dictate different process tool design pdm systems try put tight controls process done fail creativity requires flexibility dobras adds people talk sharing data pdm don t good idea data share manufacturing information complex people produced decipher cases best data-management strategy focuses organizing information sharing dobras says companies try top-down data-management strategies underestimate costs involved ?all sudden end $15 000 seat user scares people ? reason difficult implement comprehensive pdm strategy manufacturing physical tooling moves lot different places outsourcing separate companies shop make electrodes machining cut tool steel shops uses different computer systems populated people computer programmers ?the people competent tool makers trained computer technology don t formal background developing solutions data-management problems ? dobras says manufacturing information organized time required make tools dramatically reduced best shops says dobras job eight weeks take 20 weeks ?automakers take look differences time takes complete project wonder t predictable lot variables involved lot depends shop organizes information ? dobras adds successfully managing large number manufacturing files requires users store information related project appears place important central top-down data-management strategy comprehensive projects big effective ?after gm put billion dollars c4 project building global infrastructure don t standardized unigraphics iman unigraphics 12 15 years haven t done car totally unigraphics ? says, com.cadcamnet_pdm_003_01_01, KnowledgeStor, Knowledge-Stor,