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Recent content by jck26

  1. jck26

    Any Tips on How to get up to speed quickly?

    All of the answers have been great, I would add one thing - schedule yourself to go to IMTS 2008 (in Chicago, in September)(IMTS.org website) to see all of the latest stuff in manufacturing / inspection / CAD / CAM. You will need at least 3 days to get an idea of what is shown. If your boss...
  2. jck26

    17-4 PH, Anealing, Aging, Thread size

    You can machine this material post heat treatment with few problems. I rough out a tight tolerance investment casting and after HT I finish machine and thread the part. I'm not a big fan of doing heat treatment after I've done threading since it is a close tolerance operation. And if you are...
  3. jck26

    tungsten carbide

    tomwalz, For custom tooling I've been using Maximet and Micro 100 as the basis for a lot of tooling where I need toughness and wear resistance. I feel that the improvements in the production of micro-grain carbides have pushed the curve so you can have both hardness (for wear resistance) and...
  4. jck26

    Drawn Steel Wire Rusting Problems

    USCFan, I did wire drawing at one time and here are some basic questions that I would ask of manufacturing to resolve the problem: 1. Did we change our anti-rust compound or drawing compound with rust inhibiter? Has this ever happened before, and if yes, what were the issues surrounding the...
  5. jck26

    Status

    Back to the rant .... I does not matter if you have degrees and 30 years experience you will never get respect outside of those who understand what we do. I agree with the other posts that for most people this is not, and never will be, possible. I once said to my wife "why don't they have an...
  6. jck26

    The co-worker obstacle

    I hope that this experienced engineer isn't so fragile that a newly minted engineer is a threat. Please talk with him privately and ask him "that being new engineer and still learining how to behave at work, was there something that I've done that offended you since it seems like I don't get...
  7. jck26

    Status

    The reason why engineers do not get respect is that they do not fight for it. No matter how much work you do as a legal asst or nurse you can't be promoted to the next level. Period. I have had to endure many senseless discussions with semi & wanna-be engineers that if I was a doctor I would...
  8. jck26

    tubing bender die Manufacturing

    This is a lathe project, plunge the radius with a form tool that you can easily make,then turn this as a whole disk and cut / mill out the sector you need. As a turned surface you will be able to get a smooth finish in the radius. jck26
  9. jck26

    My boss says look the other way?

    I preface this with I'm not a structurual engineer so I don't know the depth of the calculation issues and their relationship to "will if fall down", but I will comment on the chain of command and lack of action. Engineers are employed to bring technical issues to the fore when the situation...
  10. jck26

    Feed and spindle speeds when cutting on mill

    A tip for plastics, get sharp tools with reduced contact to the material. Also I'm a big fan of the cold air guns that will keep the plastic from building up on the tool. I also agree to talk with your tool supplier to get excellent info on how to apply the tooling to the job. jck26
  11. jck26

    type of steel Material for make endmill tool holder R8

    Mark, you can use any moderately strong steel to suit the purpose. 4340 is a good all around steel for many tool holding issues, but why are you making a tool when you can have a tool on your desk tomorrow from McMaster-Carr or MSC? If you are looking for a speical holder you can go outside of...
  12. jck26

    World Engineering Museums

    If you are an airplane, especially warplane, nut you must go to Dayton Ohio to see the National Museum of the US Air Force. Everything from the Wright Brothers to the F117 Stealth Fighter in 3 HUGH hangers. www.nationalmuseum.af.mil/ Here is a quote from the Museum: "The museum has more than...
  13. jck26

    tungsten carbide

    As a big carbide user I'd say you're done. If the chips are restricted truely to the edge maybe you can regrind the tool, if that is allowed. If edge chipping is a constant issue then you need to look at another grade of carbide. The changes in carbide materials and the coatings for carbide...
  14. jck26

    Simulation

    Use what you know since there are no other users. Make damn sure that the data you load the system with can very closely match the actual operating conditions that you have on the floor. If you enter in an actual set of present conditions it must correlate to what you have or those who can't...
  15. jck26

    LEAN DESIGN

    I/m not sure what Lean Design is but if it involved the practice of DFMA (design for manufacturing & assembly) contact these guys for a system to get you going. www.dfma.com jck26

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