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  • Users: badger2011
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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

    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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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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