Now I have a case about PCD saw blade sharpening. Customer is using
Vollmer CHD270, a special and famous grinder for saw grinding and
Customer is looking for vitrified bond diamond wheel and metal bond
diamond wheel to mount on his grinder, the workpiece is PCD. To
find a long working life is customer’s main requirement. Moreover,
he does not have much experience in PCD saw blade sharpening, as he
just starts this project recently.
I recommend him vitrified bond diamond wheel with 600# and 800#.
And grinding wheel RPM is about 2000, amount of feed is 0.1mm for
rough grinding, semi-fine grinding is 0.05-0.06mm, fine grinding is
After test, customer told me the working life is only 50% compare
to ASAHI metal bond diamond wheel, and also have some noise during
the grinding. However, he is satisfied with grinding wheel’s
sharpness. Maybe the diamond wheel quality is not the single
problem. I think the grinding parameter is not suitable. Cause
customer is fresh in PCD saw blade grinding. He used to manufacture
carbide saw and just start produce PCD saws. And now carbide saw is
still his main products. He uses resin bond type wheel more,
supplier is Suzhou Saili.
I told customer we have different type wheels, sharp wheel and long
working life wheel. And we usually offer customer with sharp type
wheel for the first time. We can adjust and offer long working life
wheel to customer.
|Grit: 325/400, W40(500#), W28(600#), W20(800#), W10(1500#),
Suitable Grinding Machines:COBORN,EWAG, FARMAN,MYTECH...
Grain Size Selection:
|Grain Size||Machining Type||Application|
|W40(400-500#,D35)W28(600-700#,D20)||rough||Regrinding a blade edge profile and sharpening of much worn inserts|
|W20(800-1000#,D20)||universal||Standard grain size also can get a high sharpening efficiency, good
W10 (1500#, D15A)
|finish||Finishing grinding - getting a very good quality of machined
W5 (3000#, D7)
|super finish||Super finish grinding - getting a brilliant quality of machined