Selecting the Right Grinding Wheel
You are well aware of the usefulness of the grinding wheel as a cutting tool. This is actually known as an abrasive cutting tool. With this tool, the abrasive is going to do the same functions like the teeth that you will see in the saw. But, compared to the saw, which comes with just teeth on the edge, the grinding wheel is made with abrasive grains around the wheel. There are so many of such and those tough grains would move against the workpiece in order to cut such small chips of material.
Such abrasive supplies are going to make different products for a lot of grinding applications in metalwork. You will be wasting time and money when you have chosen the wrong product. The grinding wheels and those other bonded abrasives have a couple of major components that are abrasive grains which don’t have such actual cutting as well as the bond that would hold the grains and provide support while cutting. Such percentages of the grain and the bond and such spacing in the would determine the wheel’s structure.
Certain abrasive would be selected based on the way that such interacts with the work material. Keep in mind that the best abrasive would stay sharp for a long time and would not become dull easily. There are new cutting points made once the dulling would start. The abrasive type is created in a unique way with certain properties for strength, hardness as well as a resistance to impact and fracture toughness.
Keep in mind that the aluminum oxide is quite a common abrasive used in those grinding wheels. It is usually the abrasive that is selected for grinding that high speed steel, carbon steel, wrought iron as well as other kinds of metals. There are various aluminum oxide abrasives and you must know that each one is made and they are blended for some kinds of grinding jobs. Each kind of abrasive carries its own designation, usually a combination of letter and number. Such designations would differ by manufacturer.
After you have determined the grain, what you must know next is the grit size. Understand that every grinding wheel has that number designating the characteristic. You must understand that the grit size refers to the size of each abrasive grain that you can see on the wheel. This would match to the number of those openings for every linear inch. The higher numbers have smaller openings in the screen in which the grains are passing through. Moreover, the coarser the grain, then there would be bigger size of material removed. Keep in mind that the coarse grains are utilized for fast stock removal wherein the finish isn’t really important. Those higher numbers actually have fine grit wheels. They are best for imparting such fine finishes and also for use with the hard and brittle materials.