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  1. Vindicit

    Laser spatter on Inconel

    So I cut Inconel and Stainless Steel on a 400 watt CO2 laser, typically between 0.007 - 0.015in thick so sheet metal. I use Simple Green Anti-spatter and it seems to work good for Stainless Steel but on Inconel of the same thickness I tend to get a very small amount of spatter adhering to the...
  2. Vindicit

    BSPP threads - washer / no washer

    So I have these fittings that are said to be G1/4 threads which are BSPP straight threads. The original female fittings inside have a copper crush washer that bottom out on a flat backing that seal against the male and female connections. I bought new female fittings to replace them that are...
  3. Vindicit

    Using pneumatic quick disconnect couplings for liquids?

    Looking at brass quick disconnect fittings for fluids and compressed gas. I'm looking for information about using these fittings that are labeled as for "Air" use but use them for water. Is that generally not a good idea? I'm not able to find any information that specifically says no. The quick...
  4. Vindicit

    Arguing Rigid vs Non-Rigid for inspection

    So I have inherited a few problems with a company I work for. All of the parts that we manufacture are thin sheet metal that can bend with even a 1 lb weight on them, they bend and deform in assembly that is their intent. The problem is that these parts have been manufactured since the 1970s and...
  5. Vindicit

    Feature Control Frame composite vs multiple single segments

    Whats the difference in the feature control frame of a composite tolerance vs multiple single segment tolerances? I got this on a drawing and these 2 flatness tolerances are considered Datum A. To me the bottom example feels like it was a mistake by the drafter as most of the drawings that came...
  6. Vindicit

    Nickel Plating Turning Blue

    Hi all, I have parts being Nickel plated to AMS 2424 about 0.002-0.004 thick and being shipped over seas from the UK to the US. They have a post plating heat treatment thats at something like 900F (500C) for an hour. Typically theres a good amount of my parts that have a blue blotchy stain on...
  7. Vindicit

    Polishing D-2 Tool Steel Rollers?

    I have some sheet metal rollers that are D-2 and hardened. These rollers are probably at least 20 years old and are in need of some maintenance. They are pitted and have scratches. What would you guys recommend for polishing hardened rollers? Would I have to get some kind of compound or would...
  8. Vindicit

    Pushing work w/ threaded rod + hand crank

    I'm kind of having a brain fart here. I'm trying to design a fixture that can push/pull work by using a long screw + hand crank. The screw is threaded into a stationary block and at the end of the screw is the work piece that needs to move back and forth. What I am having trouble visualizing is...
  9. Vindicit

    Stamping Dies - Spring type guide pin?

    On the topic of sheet metal stamping tooling, I have 0.010in thick sheet metal parts that are already blanked out. Afterwards there is additional forming processes. After these forming processes theres hole punches to pierce the bolt holes. Im finding out that during these forming processes that...
  10. Vindicit

    Inconel and Stainless properties

    Hi, Do you guys know of any good resources that explain material properties of various metals? I'm looking to get some, not necessarily general differences but concrete differences between Inconel and Stainless Steel. I know that Inconel is considered a "better" material in terms of strength...
  11. Vindicit

    Circularity on Metrology Software Question

    So Im trying to understand circularity and I thought I had a grasp on it until I see how some of my parts are measuring up in this metrology software. The picture shows a ring with a certain diameter and the only tolerance on there is the .035 circularity tolerance. The reading shows up at .016...
  12. Vindicit

    A2 Hardening Roll Form with Thin Section

    Hi, Im trying to make a roll form out of A2 and harden it. I have an older roller that I am trying to recreate that was not hardened at all but the thin center flange has been bending and chipping over the years. I'm wondering if anyone could have any idea to what I would need to harden this...
  13. Vindicit

    Datum Question with True Position

    Hi I have a question on datums. In the attachment I have 3 examples and all 3 I have seen done on drawings. I dont show any basic dimensions or datum A, although datum A would be the face of the square shape. If someone could explain these 3 examples and how the datums relate to the true...
  14. Vindicit

    Reporting Datum Target Dimensions

    I have a drawing with datum targets thats similar to what I have attached with 3 bolt holes inside the profile. I need to do a first article inspection on this part and I dont know how I should inspect and report these dimensions for the datum targets. I am using an Optical CMM and I just use...

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