Grinding machine horsepower must also be considered. In general, harder grade wheels should be used on machines with higher horsepower. If horsepower is less than wheel diameter, a softer grade wheel should be used. If horsepower is greater than wheel diameter, choose a harder grade wheel.
How do you select the grinding wheel according to grade?
- Worked material. ...
- Type and nature of grinding operation. ...
- Operating speed of grinding wheel. ...
- Contact area between the grinding wheel and ground material. ...
- 5. “ ...
- Difficulty rate of grinding operation. ...
- Grinding machine power.
What is grade of grinding wheel?
Grade: The term “grade” as applied to a grinding wheel refers to the tenacity or hardness with which the bond holds the cutting points or abrasive grains in place . It does not refer to the hardness of the abrasive grain. The grade shall be indicated in all bonds and processes by a letter of the English alphabet.
How do you specify a grinding wheel?
Diamond/CBN grinding wheels (super abrasive wheels) can be applied to various specifications by combining “abrasive grain (abrasive grain type)”, “grain size (abrasive grain size)”, “bond strength”, “degree of concentration (grain concentration in bond)”, and “bond type (bonding material)”.
What are the 3 types of grinding wheels we use?
- Straight Grinding Wheels. You see them all the time. ...
- Large Diameter Grinding Wheels. Large diameter wheels are like straight wheels, but they are much larger. ...
- Grinding Cup Wheel. ...
- Grinding Dish Wheel. ...
- Segmented Grinding Wheel. ...
- Cutting Face Grinding Wheel.
What is the process of grinding?
Grinding is an abrasive machining process that uses a grinding wheel or grinder as the cutting tool. Grinding is a subset of cutting, as grinding is a true metal-cutting process. ... Grinding is used to finish workpieces that must show high surface quality and high accuracy of shape and dimension.
What is a Type 1 grinding wheel?
Type 1 Wheel – A thick disc shaped wheel intended for grinding on its periphery as in bench grinders or straight grinders.
What is the most aggressive grinding wheel?
Diamond and CBN grinding wheels are the most aggressive grinding wheels on the market right now. Both provide dominant performance due to their high stock removal rates and ability to grind the most difficult materials.
What are the different types of grinding?
- Surface grinding. ...
- Cylindrical grinding. ...
- Internal grinding. ...
- Centerless grinding. ...
- Contour grinding. ...
- Gear grinding. ...
- Thread grinding.
Which grinding wheel is easiest to break?
Friable grit breaks down more easily and is useful for cutting harder materials. Grit size typically runs from coarse (16 -24 grit), medium (36 – 60 grit) and fine (80-120 grit).
How is the life of grinding wheel defined?
Wheel life is calculated by dividing the usable abrasive by wheel wear . ... The dressing amount is programmed per revolution of the wheel. The number of revolutions the wheel completes per cycle is dependent on the wheel diameter, wheel speed in sfpm, the grinding length, the depth of cut and the table speed.
How long does a grinding wheel last?
It has always been Saint-Gobain’s recommendation that Resinoid Bonded grinding wheels be used up within 2 years from the date of manufacture . This recommendation assumes that Resinoid Bonded grinding wheels have been stored under ideal storage conditions.
What are the safety precautions that you need for grinding?
Wear safety glasses or goggles , or a face shield (with safety glasses or goggles) to protect against flying particles. Gloves, aprons, metatarsal safety boots, hearing protection, and respiratory protection may be required, depending on the work. Ensure the floor around the work area is clean.
What is the most common grinding wheel shape?
TYPE 27 . Type 27 is by far the most common abrasive grinding wheel. Type 27 grinding wheels differ from other wheels in that they have a flat profile with a depressed center. A depressed center allows for clearance when the operator must work at a constrained angle.
What type of grinding wheel is best for stainless steel?
The most important factor when grinding stainless steel is to use contaminant-free or INOX wheels . This designation means the wheels are manufactured with additives that contain less than 0.1% iron, sulfur and chlorine.
Which wheel is used for grinding tough materials?
Diamond . Two types of diamond are used in the production of grinding wheels: natural and manufactured. Natural diamond is a crystalline form of carbon, and very expensive. In the form of bonded wheels, natural diamonds are used for grinding very hard materials such as cemented carbides, marble, granite and stone.
