ignatiuswong
26th December 2007, 05:01 AM
Did anyone know laboratory to check tensile strenght uses UTM on our country ( Indonesia)??
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View Full Version : Laboratory for Checking Tensile Strength using UTM (Universal Tensile Machine) ignatiuswong 26th December 2007, 05:01 AM Did anyone know laboratory to check tensile strenght uses UTM on our country ( Indonesia)?? Ajit Basrur 26th December 2007, 10:02 AM Did anyone know laboratory to check tensile strenght uses UTM on our country ( Indonesia)?? Got the FOLLOWING INFO (http://www.google.com/search?as_q=universal+tensile+testing+laboratory&hl=en&newwindow=1&num=100&btnG=Google+Search&as_epq=&as_oq=&as_eq=&lr=&cr=countryID&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=any&as_dt=i&as_sitesearch=&as_rights=&safe=images) when I googled. You could get more info from the link. BradM 26th December 2007, 12:29 PM Also, I have found that the local ASQ sections are usually pretty good sources for information. Ask around; they may not know, but may know people who is in the industry who can help. Also, check with the people who provide you the material you perform the testing on. Stijloor 26th December 2007, 02:45 PM Also, I have found that the local ASQ sections are usually pretty good sources for information. Ask around; they may not know, but may know people who is in the industry who can help. Also, check with the people who provide you the material you perform the testing on. Hi Brad, The OP is from Indonesia. I know ASQ has international chapters, but would they have one in Indonesia? Stijloor. Hershal 26th December 2007, 04:05 PM Did anyone know laboratory to check tensile strenght uses UTM on our country ( Indonesia)?? I would begin by going to http://www.aplac.org Find the closest accrediting body to you, and scan the laboratory listings that they will have. That will be on of the faster ways. Hope this helps. BradM 26th December 2007, 05:22 PM Hi Brad, The OP is from Indonesia. I know ASQ has international chapters, but would they have one in Indonesia? Stijloor. You know, I sincerely don't know. I figured ASQ was getting pretty global. Maybe some of the others know for sure. Stijloor 26th December 2007, 05:31 PM You know, I sincerely don't know. I figured ASQ was getting pretty global. Maybe some of the others know for sure. Hi Brad, I'm sure Harry would know. He's in Malaysia. We'll hear from Harry soon, I'll bet. Stijloor. harry 26th December 2007, 08:54 PM You know, I sincerely don't know. I figured ASQ was getting pretty global. Maybe some of the others know for sure. Yes Brad, ASQ courses are promoted by our Federation of Manufacturers partly because we have a lot of American based Companies here and partly because there are no others that are strong in promoting quality related education. However, we do not have a local chapter. Coming back to the original post and reading in-between the lines of another of his thread: Does Anyone know how to check Universal Tensile Machine (UTM) ?, I am not sure if he's looking for some parties to calibrate his equipment or to physically 'check' if his instrument is working fine. As I replied in his previous thread, just get somebody to calibrate it - it does not cost much. Having said that, I realized that it depends on which part of Indonesia he is from. He may faced problems if he is in the remote parts (but I guess he's not). In another of his post, he indicate that he's from a TS certified organization. For TS, your instruments need to be calibrated by ISO 17025 accreditated labs. You can find lots of such labs listed in Yahoo Indonesia. You can also find out from your suppliers, consultants or other business associates. Some local Universities do provide such service also. Also check with your National standards organization. ignatiuswong 26th December 2007, 09:33 PM Dear harry, i got problem for Our UTM machine, i'm not sure there was reliable or not, we had calibrated in one of calibrated-lab in our country, but the result it's still can use, so i just make some gage R&R, use 10 samples, with a same parametric, but the result is different, the lowest tensile is 22,43KN and the highest is 26,15KN. please see attached, this is our calibration certificated. need your suggest!! harry 26th December 2007, 10:23 PM Dear harry, i got problem for Our UTM machine, i'm not sure there was reliable or not, we had calibrated in one of calibrated-lab in our country, but the result it's still can use, so i just make some gage R&R, use 10 samples, with a same parametric, but the result is different, the lowest tensile is 22,43KN and the highest is 26,15KN. please see attached, this is our calibration certificated. need your suggest!! First, what are you testing? Wires, rods (cold drawn, hard drawn) or others? How do you collect the samples? The highest and lowest results - are they from the same batch, are they from the same piece of sample (same length of rod)? DavidPhillips 29th December 2007, 11:45 AM Stupid question - but are some or all of the specimens breaking within the UTM grips? DavidPhillips 29th December 2007, 12:01 PM I just took another look at your calibration data in the attachment. Two points arise: 1) This is not a correct way to report calibration for a UTM. International standards govern the process and much more data is required. Do you have a complete certificate to International Standards which you can post? 2) The errors shown are far too big for a UTM. Most international standards expect 1% or better. In the second reading the error is 14%!! Interestingly this also matches the huge difference between your test results. My conclusion from the data received so far is that there is a serious problem with the load measuring system on your UTM. Damaged / overloaded load cell or electronic failure. If this is the case - both of these points should have been highlighted by the calibration organisation! SilverHawk 29th December 2007, 12:20 PM Not to sure if GR&R can be perform for these destructive test using UTM.. it seems that the results with the lowest is 22,43KN and the highest is 26,15KN. Each test specimen will give different results - true enough as each is of different property. Jim Wynne 29th December 2007, 12:32 PM Not to sure if GR&R can be perform for these destructive test using UTM.. it seems that the results with the lowest is 22,43KN and the highest is 26,15KN. Each test specimen will give different results - true enough as each is of different property. Let's not confuse GR&R with the larger subject of measurement system analysis. If we can't perform a controlled analysis to verify the efficacy of a device, then its results must be considered unreliable, and mostly useless. Using specimens from the same heat or lot of material--sections of a single metal bar, e.g.--should yield reasonably similar results. |
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