The ring test won’t reveal all defects in a grinding wheel either. If there is any doubt about the integrity of a grinding wheel DON’T USE IT! The cost of a grinding wheel just isn’t worth the risk. The ring test can be used most effectively on vitrified bonded grinding wheels that are over 4”-diameter. The wheels can’t be mounted as that inhibits the ring. The grinding wheels should be free
One method of grinding wheel inspection is called ring testing. OSHA, ANSI and the grinding wheel manufacturers require this method of grinding wheel inspection. It must be performed BEFORE the wheel is mounted on a grinding machine. Ring testing depends on the damping characteristics of a cracked wheel to alter the sound emitted when the wheel is tapped lightly.
How to "ring test" a grinding wheel. Wheels should be tapped gently with a light, nonmetallic instrument. A stable and undamaged wheel will give a clear metallic tone or "ring.". That distinctive ring comes from the hardness of the material in the wheel
A cracked wheel will lead to a serious accident. Here is a way to test your grinding wheel for cracks.
Here is a quick & easy method to "ring test" a grinding wheel for a bench grinder. This will prove that there are no hidden defects/cracks that could literally make the wheel "explode" & will save
Bench and floor stands. The angular exposure of the grinding wheel periphery and sides for safety guards used on machines known as bench and floor stands should not exceed 90 deg. or one-fourth of the periphery. This exposure shall begin at a point not more than 65 deg. above the horizontal plane of the wheel spindle.
Abrasive (Grinding) Wheels. Testing. Cracks in abrasive wheels are often impossible to see. Two effective methods to detect cracks are the ring test and the The ring test assesses the sound coming from a grinding.. Grinding. Wheels, Fatigue Proof Test Procedure. More details » Get Price
Don’t adjust the work rest or tongue guard/spark arrestor while the grinding wheel is rotating. Don’t stand in front of or in line with a grinding wheel whenever a bench grinding machine is started. Don’t grind on the side of the wheel. Don’t jam the work into the wheel. Don’t grind material for which the wheel is not designed.