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Recent content by dwillms

  1. dwillms

    List all references between Assembly, Drawing and Part Files

    Hi dgallup, Thanks for the tip, I had not seen this one before! I'd still like something that looks at ALL files, but this will get me started and is better than loading and doing >Info on every assembly. Thanks.
  2. dwillms

    List all references between Assembly, Drawing and Part Files

    Over the decade, our small team has produced some ~10K or so Pro/E assembly, drawing and part files in WF2. We store them in a crude repository mapped to a local directory structure. Repository maintenance has not been our priority, so we have many part files not in assemblies or drawings -...
  3. dwillms

    Pro/E and Clearcase

    Anyone with experience using Clearcase as a PDM tool for Pro/E files?
  4. dwillms

    Dimensional creep from residual stresses

    Hi IRstuff, Well, thermal expansion is nice and linear (for uniform temperature) and can be predicted out of the model. Similarly, the effects of gravity can be calculated out. Its the unpredictable, non-linear stuff that we're worried about.
  5. dwillms

    Dimensional creep from residual stresses

    Thanks Lcubed, It just so happens that I'm working on an aluminum extrusion and we're deliberating a stress relief anneal following some post-extrude machining operations (removing 4.5% of the part mass). Dimensional changes to the part can be accomodated following machining and before...
  6. dwillms

    Dimensional creep from residual stresses

    Hi All, Has anyone any experience with dimensional creep (distortion) as a result of residual stresses over the *long term*? Objects do distort in the short term as a result of forming or machining operations from residual stresses, but are these changes long-term stable, or will the material...
  7. dwillms

    Al heat treat literature suggestions

    Hi, Can anyone suggest a decent print resource/reference book which describes aluminum heat treating processes from a chemical, metallugical, and physical point of view? Something from one of the societies? Thanks
  8. dwillms

    Hardening Of Aluminium Threads

    We have a similar difficulty strengthening the threads in a fairly thin-walled aluminum extrusion (wall thickness < thread dia). Helicoils require their full length to be seated in metal in order to prevent them backing out. They can be clipped shorter but this doesn't really work in a...
  9. dwillms

    Aluminum stress relief anneal

    We're doing some machining to a beefy 6061-T6 extrusion and are VERY concerned about residual stresses in the material afterwards(as a result of extruding and machining). Two questions: 1. Any idea if dimensional creep is likely as a result of machined in stresses over the life of the part...
  10. dwillms

    Aluminum stress relief anneal

    We're doing some machining to a beefy 6061-T6 extrusion and are VERY concerned about residual stresses in the material afterwards(as a result of extruding and machining). Two questions: 1. Any idea if dimensional creep is likely as a result of machined in stresses over the life of the part...
  11. dwillms

    Aluminum stress relief vs. artificially age

    We're doing some machining to a beefy 6061-T6 extrusion and are VERY concerned about residual stresses in the material afterwards(as a result of extruding and machining). Two questions: 1. Any idea if dimensional creep is likely as a result of machined in stresses over the life of the part...

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