If you're cutting 4 or 5 inches deep like we do at my company, the blade will overheat very rapidly. This severely decreases the life of the blade by causing warping, loss of diamonds/matrix, and premature wear of the steel components. Furthermore, it's bad for the saw motor (and the workers!) to always breathe in concrete dust like that, so use water to keep the dust away.
There are so many more factors that effect the performance. The bond on the diamond blade, the feed pressure, etc. Water doesn't rob the horsepower - it only effects how the blade cuts. You need the right amount of water - slurry should look like a milkshake or heavily creamed coffee. That keeps the diamonds exposed, thus allowing the blade to continue to cut properly.
How do you figure that the water didn't act as a lubricant. in the water cuts, the rpm of the blade and the time it took to cut the same distance was higher. The blade doesn't "cut" but grinds the concrete almost like sandpaper. So the more friction the faster it is going to cut through it but at a cost of lower life of your blade and saw..
you dont put to full rpms before you go into the cut you give it one good rev..let the blade slow down a bit and put it on your line...therefore the blade and the handsaw dont shift and wiggle as much and you can get a straighter cut....i slabsaw for a living haha
I have noticed that non contact thermometers seem to have trouble with shiny metal. Ones I have tried on a polished Al hotplate routinely read more then 100C lower then a thermocouple.
lol, it's more complicated then that, you see you only cut about an inch so thats not a good calculation. there is so much more to it, blade spec, saw power depth of cut, rpm's. water will make the blade last longer, its necessary for clearing the cut too. it will leave a cleaner cut with water but you need to know how much to use as well. its all about keeping the diamonds properly exposed.
peebsb makes several good points; depth+clearing of debris+cooling; If the blade is not cooled and is submerged into surface enough so as the heat generated transfers to metal disc holding the cutting segments then distortion will create exponetional drag = slower cutting ft/rate Were as cooling will eliminate any distoration thus longer blade life and more production.
depth of the cut is a factor too, when cutting deep you need the right amount of water. too much water will rob the horsepower of the saw and reduce the power to the diamonds. also next time you do this test don't use all the throttle on the saw. slowing it down to about 75 percent will increase your cutting speed and keep the diamonds from glazing over
Your doing it all wrong! Next time put your tongue to the blade while it's rotating to tell you how hot it is.
WiIdbiII 1 month ago
If you're cutting 4 or 5 inches deep like we do at my company, the blade will overheat very rapidly. This severely decreases the life of the blade by causing warping, loss of diamonds/matrix, and premature wear of the steel components. Furthermore, it's bad for the saw motor (and the workers!) to always breathe in concrete dust like that, so use water to keep the dust away.
zhmapper 2 months ago
some honkey ass music
lost4815162342108 5 months ago
cool song
MasterWelder1991 5 months ago in playlist CONCRETE WORK AND ASPHALT WORK
There are so many more factors that effect the performance. The bond on the diamond blade, the feed pressure, etc. Water doesn't rob the horsepower - it only effects how the blade cuts. You need the right amount of water - slurry should look like a milkshake or heavily creamed coffee. That keeps the diamonds exposed, thus allowing the blade to continue to cut properly.
lodin8 8 months ago 2
That is the most inept *test* I have ever seen. There are so many variables in your *test* it's not funny.
MNETHRID 1 year ago
How do you figure that the water didn't act as a lubricant. in the water cuts, the rpm of the blade and the time it took to cut the same distance was higher. The blade doesn't "cut" but grinds the concrete almost like sandpaper. So the more friction the faster it is going to cut through it but at a cost of lower life of your blade and saw..
phyriz007 1 year ago
pointless test. go ahead and continue to use the wet saw dry and see how long it lasts.
joeratti 1 year ago
fuck the dry cut using a wet saw !!!!! use a grinder with a diamond tip....
Junglemachete 1 year ago
you dont put to full rpms before you go into the cut you give it one good rev..let the blade slow down a bit and put it on your line...therefore the blade and the handsaw dont shift and wiggle as much and you can get a straighter cut....i slabsaw for a living haha
madi3919 1 year ago
How about using gloves?
m
michaelXXLF 1 year ago
@michaelXXLF dont wear gloves,be one with your machine,and use the force my young jedi knight.......u have much to learn!!!!!
Junglemachete 1 year ago
You're gonna need a shitload of quickrete bags for that driveway.
med672 1 year ago
Who says F-Randy is constant?
161803 1 year ago
I have noticed that non contact thermometers seem to have trouble with shiny metal. Ones I have tried on a polished Al hotplate routinely read more then 100C lower then a thermocouple.
dammitdarrell 1 year ago
Interesting info, thanks for bringing this to us and taking the time to do the research.
diamondblades 1 year ago
Awesome video, I'm surprised at the results
anakastakis 1 year ago
i love silly cosis:-)
more than that, i love this video......
tribejon 1 year ago
well you have to use water unless you like sillicosis
jacknivedoesdemo 2 years ago
It's called "water stiction"
sliperysid 2 years ago
lol, it's more complicated then that, you see you only cut about an inch so thats not a good calculation. there is so much more to it, blade spec, saw power depth of cut, rpm's. water will make the blade last longer, its necessary for clearing the cut too. it will leave a cleaner cut with water but you need to know how much to use as well. its all about keeping the diamonds properly exposed.
peebsb 2 years ago 7
peebsb makes several good points; depth+clearing of debris+cooling; If the blade is not cooled and is submerged into surface enough so as the heat generated transfers to metal disc holding the cutting segments then distortion will create exponetional drag = slower cutting ft/rate Were as cooling will eliminate any distoration thus longer blade life and more production.
IZIPPLE 1 year ago
depth of the cut is a factor too, when cutting deep you need the right amount of water. too much water will rob the horsepower of the saw and reduce the power to the diamonds. also next time you do this test don't use all the throttle on the saw. slowing it down to about 75 percent will increase your cutting speed and keep the diamonds from glazing over
peebsb 1 year ago 2