thank u so much for actually showing how it "works" rather than how to "use it", iv been thru a few videos trying to figure it out n none actually show How the machine does what it does, they simply show how to use them n a few other generalities... a bunch use the phrase "how it works" which can b confusing but technically isnt wrong, just isnt the most accurate..
Thanks for your comment... As for the explanations about how things work, I try to satisfy my own curiosity on the basic principles used in the instrument, apparel or machine. Once I'm satisfied, then, it's possible to make a video and share this tiny bit of knowledge. Cheers...
It was good to see our Canadian brothers in the shop having a fun time. You did pretty good on explaining the hardness tester. It is all about the hook set and strike. That is why you fish. Sometimes you even catch a sucker or two. I enjoyed the fun, thanks to Phil and Robert. Randy
Randy Richard H Randy, I'll transmit you salutation to Phil and Robert. Getting together always end up in a fun time. ;-) Thanks for stopping by, Pierre
Hey Pierre. I just picked one of these testers up today but I need to make a set of weights. Thanks for being SO complete in your video. A very big help to a fellow Canadian.
Glad you got something useful to complete your project, I do the same when I need information about something, there is a lot of good stuff on RU-vid, we just have to pick the better sources... Thanks for taking a moment to leave a comment, Pierre BTW, in what region of Canada are you located...?
Hello Pierrre, Having been there during the filming, and seeing the final product, I now know you are as good an editor as a machinist. Thanks for having me along. Robert
rfnoise Hi Robert, Machinist ok... Editor, maybe a little less.... Only editor by absolute need. ;-) You're Welcome any time, great to have you around... Pierre
Thanks for the video Pierre, I just acquired a 1 JR with no 50 kg weight and of course, no instructions. This video will definitely help as it's nearly impossible to find information on the internet about these machines.
+L98FIERO You're right about the lack of information, this is why I thought it would be interesting to publish a little basic info about it. Guess that now you figured how much weight you need to get a replacement... Thanks for comment.... Pierre
Pierre- Bravo mon ami! I appreciate it- Just bought a Wilson 4JR- and this was PERFECT to get a bit of an intro to this machine! Bravo yet again to the bunch!
I'm glad you could get something to help you get started, this is an indispensable tool in working with different alloys and heat treatment... Thanks for viewing and for taking time to leave a comment, Pierre
Hi steve, glad it helped, I seen you got some quite important mods to your shop, it will be a better shop when done...!!! I'm thinking about getting back at producing again, just not ready yet, soon I hope.... Take good care, stay safe.... 😷😎👍
+ArmaN RX If you're talking about the results from the tester, be aware that the method is to take 2 to 3 measure and average the measures... If you have any questions, just ask and I'll do my best to help... ;) Thanks for comment, Pierre
+Matt D When at first I've been looking for a reminder of the principle and the functioning, there was nothing to be found, so I've decided it would be a good idea to put up a short video on "How to", glad it serves the purpose... Thanks for feedback, Pierre
Dave Prototype Philippe and I are presently working on a project involving some heat treatment and you'll get to see some operations from hardening to tempering, might still take a little while though, will also greatly depend on the type of alloys used... Thanks for the interest and comment, Pierre
I watched this again today after last watching it years ago. Then up came a hardness tester on Ebay...the rest is history, I'll pick it up in a few days. Have some work to replace some missing bits though.
great lesson Pierre, thanks for the heads up, The nasty subtitler seemed happier today and the shop was so full that Mr. Compressor didn't show up. That was a fun day. Cheers mon ami!
That was very interesting Pierre. Believe it or not I too have a hardness tester. The difference is it is for testing lead. You make the little dimple with the tester pressure then compare it with an optical device. Thanks for sharing.
cerberus Hello Harold, this one will go right to the other side of your lead bullets... lol I'll try to put my hands on the softer material testing probes, like the 1/16" metal brine, cause with much softer materials diamond is a little too hard and pointy... Cheers, Pierre
I appreciate that you appreciate me. lol One of these and a large granite plate are musts for the new shop.......along with, walls, floors and everything else I still need. :-)
bcbloc02 Hi Brian, You got one thing that I would die for....!!! BIG space, call me when the installation is ready to operate.... :-))) Keep on looking out, you're sure to find a decent tester, try not to find it too far it's heavy, like 150 pounds. Cheers, Pierre
Hi, I'm glad you take some time to say your appreciation, it encourages me to put up more videos for people to enjoy as much as I enjoy doing them... Thanks, Pierre
Lovely tool. Nice demo Pierre. Not sure about all this skirt lifting:) I guess there is a formula for converting Rockwell to Brinell - tho maybe that is now obsolete.
ChrisB257 Hello Chris, I've not search about a formula to convert the different standards, normally I'll use some charts that can be found on the net... try: WWW.wilson-hardness.com Got slapped lifting the skirt the first time, I had to explain that I was some kind of tester doctor... :-)) Cheers, Pierre
Hey Pierre, Can you send me a couple pictures with the top cover removed showing the fulcrum pivot area on your Rockwell tester. I have one and I believe its missing a bushing in this area. I have not had any luck finding a parts or detailed picture of this spot on the machine. Cheers! Tom
For precise readings you'll need to acquire some reference disks and calibrate your tester prior use, those disks are available with different hardness, the cost is quite high though unless you find some almost new rarely use items on eBay or so... In the follwiing link you'll find a brochure of what you need to find. www.buehler.com/products/hardness-testing/hardness-testing-blocks/wilson-rockwell-test-blocks/
Joshua Svinarich Hello Joshua, the indenter I use is a standard Wilson "C" brale ( 7310238 ), the indenter is changeable so I could us other ones like a 1/16" ball or whatever depending on the hardness of the material to test... I mostly use tit for harder material, though. I'll explore Gilmore's site looks good at a glance... Thanks for stopping by and commenting, Pierre
Hi guys. I was watching this with interest, however I found a few things missing. We had three French guys, and not a bottle of wine or pernot in sight. Also no Gitanes, what is this world coming to. Nice explanation of the tester. Marcel.
Marcel Timmers Hello Marcel, Gitanes are stinky cigarettes and only reserved to French in France, here in Quebec Gitanes smokers end up alone or shot in a corner... :-)) Wine is for free time, not on hard working session... ;-) Thanks for comment, Pierre
pierre beaudry Ah I understand..... Not really French...... I used to love Gauloise with filter, but started to wheeze a little, so I left that to the French. But wine was perfect for that occasion, me thinks.
Hello @Pierre's Garage thanks for the great video. I have a 2 questions in mind, your help will be highly appreciated. 1- There are 2 sets of readings in the outer dial C0-90 and B0-90 in the video the reading was C61, why not read B91? what is the difference between the 2? 2- How do we make sure which dia indentor to use for our application? 1/16, 1/8, 1/4 ? Its confusing, your help will be highly appreciated. Thanks
Hi, For the first question, you have to read the scale according to the weight hung to the back of the instrument, meaning that id you use the full load you know you have to read the C scale. To adjust for the right scale there is a chart on the instrument that will tell the scale and load combination... Second question, in order to use the round softer indenters you will need to use some indenter that penetrates less into the measured material, if it's softer steel, aluminium, zinc, lead, plastics... etc... You'll need to follow the charts in order to install the right amount of weight and indenter combination, this should be supplied with the specific instrument you are using. Hope this helps you to understand, thanks for viewing and for comment, Pierre
Perhaps you can clarify something for me, please? The tester has 60, 100 & 150kg weights. Rockwell scales A, B & C use 60, 100 & 150kg respectively. The dial only has scales B & C on it 😕 how do you go about measuring in scale A? For Tungsten Carbide?
Hi Really enjoy your videos very informative I’m a 70-year-old newbie I just picked up that same hardness tester at an auction can you tell me where I could get the owners manual
Try this link: amet-me.mnsu.edu/UserFilesShared/Equipment_Manuals/TE_110/Rockwell%20Hardness%20Tester.pdf Have fun with metalworking, it's never too late to learn and enjoy something new... 😊🌈👍
Hey Pierre I recently picked up a 4jr version of this machine but it has no weights with it........you wouldn't happen to know what's they should weigh do you?
As shown in the video, the first one on top is 2kg, the second one is 1,6kg and the last with the support is 1.8kg. It should be the same for the 2 models as the ratio is the same.
@@westweld I've read a long time ago that the 3jr and the 4jr use the same amount of weight. The 25:1 ratio is to reduce the actual weight used to perform the test, in reality the diamond is seeing 150kg on it's point when testing on the C scale. With this reduction of 25:1 you only need 6gk of actual weigth to make the diamond see the required 150kg. To be exact the 1.8kg is actually 1.84kg this is after actually verified with reading other peoples testimony and measuring myself on a home digital scale.
I just bought an old rockwell wilson model 3s off of craigslist. The guys that loaded it up put it on its side and a bunch of hydraulic oil spilled out, now it's out of calibration. When I tested it at the site it was spot on. I can't find a manual for it and have no idea what type of oil it needs and how much. Any help would be appreciated!
Sorry it took a little more time to get back, I'm still searching for some kinda manual I got "Somewhere" ... If my memory serves me well, I got in touch with the Rockwell company service and asked for info about my model, and I think a nice lady sent me a link for a pdf about my machine... In case it doesn't work for you, the mention I remember is taht this oil serves as a timer and a damper to make the indenter slow the decent and make it progressive, the delay for the full movement should be in the neighborhood of 5 to 7 seconds to full pressure. The type of oil recommandes was named "Whale oil" or something of the sort, this is what was used a long time ago in sewing machines, so, if you find the actual replacement you should be near the original specs, take note here I'm talking about the type of oil used in industrial machines, the ones with an big oil bath underneath the machine... Hope it helps and thanks for viewing, Pierre
It was nice to see the components of the tester, but you didn't explain how it works. What is the preload? is this a displacement? When the weight is applied what is being measured? Displacement? What units?
Hi, the scope of this video was to demonstrate the usage of the tool and what it is meant for, with a brief look on the internals. I could make a more detailed and theoretical video where I could explain how the preload is applied, then from there, after with the full load applied, the tool measures the difference of penetration and shows it on the dial. This says how hard the measured material is. The units are kinda standard to Rockwell, where there are other standards like Brinnell, you can find charts that tells you what is the correspondence between the standards. Just as a couple of examples you might want to know, HSS steel is about 60 to 65 RC, a grade 8 bolt around 35 RC, cold rolled steel under 10 RC... Thanks for watching and for comment, Pierre
+pierre beaudry Thanks for your reply. I know the hardness units are Rockwell, I was asking if you knew how that is obtained. A preload to some displacement of xxx in or mm followed by a penitration of? xxx in or mm = a Rockwell hardness of ? I think I found some of the answers here en.wikipedia.org/wiki/Rockwell_scale but still some details are missing. Maybe I will read the patent next :-)
There is some advanced metallurgy in this process, you seem to have grasped the basics, where the preload is the starting point and the difference of measure in penetration after the final load is applied, will give you the hardness according to a established standard. As just a curiosity point, with your bare eyes you can detect the difference in depth between two different samples that are far enough to imprint a notable difference, it's this difference that the tool will quantify exactly to tell you how hard is the sample. Good research.... ;)
If you have a machine shop near your location, you can try to make some agreement with them if they own all the required equipment, other places where it could be possible to have tests performed are either a wholesale metal supplier, or, I know there are some big metal recycling firms that own X Ray metal analyzers, for the moment this is what I'm thinking about, possible there would even more possible places..... Good luck in your search.
Weird thing, the first weight, on the top of the stack, is a 50 kg/2 kg, and the last one on the bottom is way smaller, but it is 60 kh/2.4 kg? How does that work? I know the mass of the attached arm counts for some, but definitely not the difference of 0.4 kg.
Try this link: amet-me.mnsu.edu/UserFilesShared/Equipment_Manuals/TE_110/Rockwell%20Hardness%20Tester.pdf Have fun with metalworking, it's never too late to learn and enjoy something new... 😊🌈👍
