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  1. badger2011

    Heat Treat Stainless - Bench Oven/Furnace

    Hello! I am in need of some advice for heat treating small batches of stainless steel components. I currently own a Thermo Oven ( http://www.labdepotinc.com/Product_Details~id~93~pid~60628.aspx?gclid=CPjX866_wLcCFYhAMgod1mEA5w ), but this one doesn't have enough horse power to perform the H900...
  2. badger2011

    GD&T - keeping features on center line of part

    Thanks for your help resolving this issue! One last questions: any recommendations for GD&T reference/self-teach guide? I searched this site and found a few ideas: YouTube videos, some older "textbooks", etc., but you all seem very knowledgeable so I thought I would ask! Thanks again!
  3. badger2011

    GD&T - keeping features on center line of part

    Repost: try this link.http://files.engineering.com/getfile.aspx?folder=979f034f-3418-4d76-a020-34240542eacb&file=Updated_with_GDT.png
  4. badger2011

    GD&T - keeping features on center line of part

    Thanks for all your helpful replies. It has been very informative for me. Attached is what I've come up with, in light of your responses. Thanks again!http://files.engineering.com/getfile.aspx?folder=e21ade6d-0831-4816-bb9f-950d2418b1f1&file=Updated_with_GD&T.png
  5. badger2011

    GD&T - keeping features on center line of part

    I'm having some issues keeping a feature on center. Can you please look at the attached image? I need a good GD&T call-out to keep these features on center. First move is to add a center line to this print and I’m assuming adding a datum. I would like the .563" thickness to stay on center...
  6. badger2011

    Concentricity of gun drilling

    "there are two different sized holes gun drilled from opposite sides. The larger one is a datum and the smaller one references it for runout, position, etc. I'm assuming this part mates with something that also has a large and small diamter that mates inside. From what has been commented so far...
  7. badger2011

    Concentricity of gun drilling

    See attached. The holes need to match up.http://files.engineering.com/getfile.aspx?folder=b04f82bc-4bf2-438e-9a76-ddd9e80e82c1&file=006.pdf
  8. badger2011

    Concentricity of gun drilling

    The customer actually forgot to put it on the print, part of the reason we had this issue in the first place (ugh) They do have a .006 run-out tolerance from the smaller ID to the larger ID (the larger ID is the datum referenced) Thanks for asking for clarification; in a nut shell, I need the...
  9. badger2011

    Heat treat oven (H900) 17-4 SST

    I am inquiring about the H900 heat treat process. We are validating our heat treat oven and running into an issue with getting them up to temperature. Here's my protocol: 6 thermocouples places on a fixture that record the temp at the level in the oven where our parts sit during H.T.. The...
  10. badger2011

    Concentricity of gun drilling

    I am machining a 16" cannulated shaft (.75 OD). There are 2 IDs which are gundrilled separate from each side and meet in the middle. I am having issues with the holes lining up, concentrically, where they meet in the middle. I am allowed a .006" tolerance on concentricity. Our machines are...
  11. badger2011

    Molding machine: 208V vs 240V

    Thanks for the replies! Yes, there are heaters. We already wait 1 hour for the presses to get hot, so I don't want to wait any longer. These buck-booster, will I need one for each machine? http://www.acmetransformerspro.com/acmebuckboosttransformers.htm
  12. badger2011

    Molding machine: 208V vs 240V

    Mechanical engineer here. I have 8 hydraulic molding presses in my facility for over-molding silicone. We're moving them to a new building that runs 208V power supply. These machines have a call out on the side that says "240V 60 AMP" Can these run safely/efficiently on 208 V or do I need an...
  13. badger2011

    Test fixture for cyclic impact testing

    Thank you all for you responses! MintJulep, I think the belt/pulley system will work well in retro-fitting my current set-up. I need to carry 4 lbs of weight up the 3.5 ft. Assuming my pulley is 4" dia. I will need a motor to supply 24 ft-lb of torque. I found a website called...
  14. badger2011

    Test fixture for cyclic impact testing

    I am trying to perform a test to mimic the impact of a hammer onto the back of a screwdriver....many times. I want to run the test until failure of the screwdriver or 5000 cylces, which ever comes first. My fixture will need to supply the force of a one pound steel weight dropping 3.5 ft (or...
  15. badger2011

    Liquid Silicone Injection Molding vs. Gum Silicone Transfer Molding

    My company currently uses Wabash transfer presses to create silicone over-molded hand-tools (gum stock w/ Pl catalyst). In my research, I have found that liquid silicone injection is both faster and cleaner (smaller cycle time and less debris). Has anyone used liquid silicone before? What...
  16. badger2011

    Advice for a greenhorn

    I just graduated in engineering and started my first job a few weeks ago at a smaller manufacturing company (70 employees, 5 engineers) and will be in product development. I am wondering if I can get some advice about what to expect in the first year and any “survival tips”. I would also be...
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