What’s up guys?!?!?! It’s Michael with Michael Talks Metal back for more metal testin talk today! For the first time in our testing talks we’re going to discuss our first destructive test. First tho, little heads up, we’ll be taking the holiday’s off so for the last 2 weeks of this year and the first 2 of 2023, take a break from all the awesome metal madness and come check us back out in Jan! Before you go tho, don’t forget to 1) WATCH! 2) Like and 3) Subscribe. Thank you for the support.
Last week’s video we looked at hardness testing as a common method of evaluating a component.
What are some of the other more common tests used to confirm that a part meets requirements?
Fluid carrying components and assemblies may be subject to simple leak testing. Vacuum leak testing becomes much more complex.
Fasteners can require a battery of tests to verify their ability to function under load and shear.
Structural parts may require that they can carry a specific proof load.
Pressure components can require that they are tested to a specific pressure. Both are non destructive when used to verify a part meets expected service strength and can be required on each part when necessary.
Testing is destructive if stressing to the point of failure is required.
Tensile testing to determine strength properties can be required at room or elevated temperature depending on the material and application. The test itself is always destructive……..but oftentimes a sample can be used in lieu of destroying a fabricated component.
Using a sample is simple in homogenous materials and simple configurations.
Things get a lot more complicated when properties can vary within the material or configuration. Care must be taken to ensure that the sample truly represents the part. When properties have been developed by heat treatment, test samples also need to be heat treated with the components they represent.
Needless to say, the testing we have been describing in the last several weeks can be a very significant contribution in the overall component cost.
All quality assurance testing is intended to confirm the quality of a part and requires careful planning. Many parts require inspections or testing at multiple steps in fabrication.
If you are a regular viewer of our video series, then you know that things can get very complicated in a hurry. So for time 113, don’t ever forget to, CHECK THE SPECS. Thanks for watching. This is Michael with Michael Talks Metal. Michlin Metals is a supplier and distributor of all things steel and metal, check the website for more: www.michlinmetals.com! If you made it this far and haven’t subscribed please click here. Missed last weeks’ video, please click here. See you in a month YouTube, thanks for a good 2022.