Surface Grinder Basics - How to Grind Fast and Accurate
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- เผยแพร่เมื่อ 29 ก.ค. 2014
- Don Bailey - Owner of Suburban Tool Inc. shows how to excel at Surface Grinding.There is a follow up video titled " Update to Surface grinding - How to grind fast and accurate" where I will show you why this works. • How To Understand Grin...
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It's amazing how many "journeyman" tool makers seem to know better than everyone trying to do a community service. Thank you, Don, for sharing your years of experience with the public. It's valuable information and most of us really really appreciate it.
You are very kind! Thank you.
One thing I always told the new machinists is to position the dresser slightly to the left of center. If you accidently take off to much it wont pull the table in and force the dresser into the wheel.
Also when coming down to paper be on the far right of the part so if you accidently go to far your part isn't getting pulled along with the wheel.
Some grinders stay true if dressed and turned off and back on. Others you will have to dress every time.You will know right away if your grind is bumpy. A very busy toolroom many times just leaves the grinders running..
You should show how to regrind a table. Ringing wheels ect.
Nice Job! You can tell you have been at it for a while! I cannot wait until I get a surface Grinder!
Don,
Thanks for doing these videos. I am high school industrial arts teacher with 20 years of experience. I teach machine shop and I am currently building a home shop with all antique machines. One should never stop learning and you have given me a lot to look at.
Thanks!
All The Best!
Mike
Thanks Don, I have been mold maker and die maker for many years and never tried that, it looks great!!! I know your company products well and they are second to none! The Harig "wirley gig" is also a great tool, as is the "rotangle"! My suburban compound sine plate is my favorite though! Great job Don, I am older than you are, but you are much wiser! ha ha! I like the desmond and Jacobs wheel dressers better than the others for radius and angle dressing.
Such a valuable source of knowledge, thank you so much for your contribution Don!
Thank you for your kind remarks and thank you for watching.
Nice demonstration, Don!
really like your videos. I worked in a tool crib for 20 years. Im subbing
Thanks for the sub! Glad you enjoyed the video.
Basically everything that I use in my daily work was said in this video, besides using your hand when "dressing" the grinder (after practice I just use my vision and hearing to recodnize the contact). And if the material has large differences, I do not use paper, I just contact the material normally. But besides that, very good tips I must say.
I have been working only 2+ years on grinding machines so far (from my 4 years experience), yes machines, since now I tend to use 4 different surfece grinders (2 small ones, 1 medium, 1 very large horizontal rotary surface grinding machine) and 2 that have more common with lead machines (1 roll grinding, 1 hole grinding, I hope this is how you can name them, since English isn not my first language, but I see that you have those also covered on your channel).
So I'm always eager for gathering more and more knowledge about my work, so I think I will be your regular viewer from now on. If only the language barrier won't be too much. Thank you very much for sharing.
Thanks again Don !
Thanks for demonstrating an excellent way to save time on a surface grinder. Another way is to plunge grind most of the material, and leave about .002 for finish cuts. The 46H wheel will plunge grind almost like a milling cutter if plenty of coolant is used. The trick is to plunge feed fast enough to cause the wheel to break down and expose sharp grit. I'm also subbing.
Great comments, thank you for watching.
thanks this really helped!
How about if there's a process of Mag inspections "Magnetic particle inspection" will you find cracks on your parts or if there's a process of Nital Etching will your parts have grinding burns from grinding like this. Thanks
Another good one, Regards Lou.
Louis Roy Thank You Louis
Hi Don. can you tell me what kind of stone you use on the part and chuck surface prior to starting a grind? Thanks.
In my job we grind the metal stamping tools when they are beginning to performe bad. The sparks may sometimes cause the grinding dust around the wheel to glow and that creates a huge amount of smoke
another method that is the norm in German and Suisse shops is to plunge down to .001 over size retract wheel move over as much as wheel thickness repeat and move over again and the last .001 walk over part for finish
another point most shops neglect is the diamond has to be sharp a blunt diamond will burnish the wheel and cause heat build-up
..And the wheel must be burnish before the last walk over.
1:53 what grit stone do you use?
nice ! You have excellent surface grinding skills!!
Regards ,
Daniel , From malaysia
Daniel Diaz Thank You Daniel
Daniel Diaz A Malaysian XD
Nice to see you here
wow , I tot i was the only malaysian here xDD
Hey Don,
Could you suggest a good coolant for fogless mister?
What could be available in Europe?
I can't get Cimtech, but I can get CimStar etc.
On youtube: 6 mins
In real life: 30 mins
might wanna move your hose so its not hitting and moving with the machine?
please make a video on making right angle in a w/p
Congratulations and thank you for these amazing videos! Please let me know, what kind of coolant do you use? Greetings from Switzerland.
Salwald Greetings , We use Cimtech 410 coolant.
Hi Don, great video. I have a disk that is 8 inch diameter and half inch thickness heat treated to 50 RC. I am grinding the part and I cannot get it to be flat to .001 What is it that I am doing wrong? I am using coolant to grind the part. Any thoughts?
Thanks in advance.
Have you watched our other video, how to grind super flat parts? th-cam.com/video/CsTbWAu0k-o/w-d-xo.html
Could you make video about grinding hardened tool steel like D2, Vanadis 4 Extra, M390, Elma in 2-6mm thickness ?
How to get this grinded and not warped ?
+TheSad25pl Thanks for the comment, we'll take this into consideration.
+SuburbanTool Inc by the way, what would You suggest for grinding tiny parts like folding knife pivots ?
Bohler M340 steel around 5-8mm dia. tapped inside.
I need to grind them to H7 after hardening.
TheSad25pl your not gonna take .010 on surface grinder with D2 and make it across a part that wide. your wheel will have worn about .003 .006.
This is old school never work today grinder used for grinding,yes you can take 10" off but it just Angeles the wheel ok if the metal soft.I use 60/62 Rockwell hardness it just use the wheel more.Just don't get it.
what if the materials is carbide?
You would want to use a borazon or diamond cutting wheel. You could use a silicon carbide wheel, but it won't be very effective.
Don't take guesses to the flatness, but actually measure it. Because I'm almost 100 % sure that thing is flat as a boat propeller, as you didn't ensure the magnetic chuck doesn't pull it flat.
Jaakko Fagerlund This part is flat and was checked in this video (How To Check and Measure Flatness ) @watch?v=naXOpoRb-ws&list=UUrUM7Q29YDCs-zDrc1QRKQQ
"make you a faster..." Subbed.
Thanks for the sub! We appreciate it.
Hey Don, how about a quick video on holding and surface grinding non-ferrous parts?
Pete Snell We have a video scheduled for today on that very subject Pete.
SuburbanTool Inc
Terrific! Looking forward to it, I have some jobs of that type lining up.
Pete Snell We released it yesterday.
SuburbanTool Inc
Thanks Don, that vacuum plate is pretty sweet. How would you hold something like a large thin ring for grinding? I have some Niobium alloy rings about 4" in diameter, and 1/4" thick. Hard to hold without distorting, but I would like to grind them decently flat.
Thanks!
Pete
Put your fingers next to the wheel: unfortunately working in a tungsten carbide preform shop in 1989-90 we were REQUIRED to hold parts with our hands when surface grinding the punch and heading/wire drawing blanks. Had MANY parts explode in my hands until I quit on the spot after 9 months. Employee turnover was VERY high there. Clamping the parts between 2 pieces of steel on the magnetic chuck was "taking too long to run these parts".
That's terrifying! I hope you made it out with all of your fingers. Thanks for sharing, and thanks again for watching.
@@SuburbanToolInc OSHA wouldn't like that, safety come first! coming from former machinist for 25 years
Wanna understand the function of a surface grinder, what about the wheel wear? If you take a deep cut like this wouldn't one side be higher than the other?
I would of put just enough magnet on there to hold the part, saves grinding a bend into your work, parts generally warp after heat treatment……I’d like to hear how you grind heat treated D2 or D3, very strange material to grind, Almost impossible with a 46kv……I too have been in this game for many years
How to Measure Wheel Speed
google it
Grinding the part faster than the guy next to you does not make you more valuable, it makes your coworker less valuable. I have spent a lifetime in the jobshops where the owners pitted one employee against the other to maximize his profit. I have always loved the trade. I can't say that about the people I have worked for.
(a card carrying toolmaker for 40 years)
Joe McGarry I am sorry to hear that you have had that type of experience. Just know that it is not like that everywhere and always keep your head up. It is always exciting to be able to do something special and know that you are good at what you do.
I've also worked in places liked this and it devolves into a bunch of backstabbing and lost productivity.
Spoken like a true union man. Fuck the employer. He just signs your check. Union is there to make sure nobody has to be more productive.
@@nitetrane98 Know what a machine shop is without skilled employees? An empty building that produces nothing, no matter how many bosses are walking the floor waving checks.
You sound like a bitter, angry old man. I've been doing this for 40 years too. I feel that anything you learn makes me a better person. Then I take what I've learned and share with others. Everyone wins.
I appreciate we only get fingers once, but, to be fair, I've got ten of them.
I don't agree with turning the wheel off after dressing it. When you restart the grinder sometimes the wheel can move and will no longer be true, giving you a poor finish.
Good thoughts, thanks for watching.
Pfff.....So rough grinding. I sad that as a profesional.
great work but no safty
Yep All the suburban tooling is ground “ fast” that’s why the surface finish looks like crap and it’s out .0005 on flatness on everything they sell