What Are The Different Types Of An Electric Grinder?
A spinning wheel with abrasive particles attached to it is called a surface grinder. This type of machining tool is extremely useful for making small holes in various materials and is also used in cutting metal sheets. A chisel like tool is used for cutting rough surfaced materials as well. A grinding wheel is the opposite of a surface grinder, the former is used to grind fine lines and edges while the latter is used for cutting or shaping metal.
Surface grinding is used mainly to create a smooth finish on curved surfaces. It’s a widely applied machining method where a rotating drum containing abrasive material is used to cut small chips of nonmetallic or metallic material from a workpiece, producing a nice face of it either flat or very smooth. A drilling machine may also be used along with the surface grinder.
A magnetic chuck is another popular power tool that is used in the home workshop. A magnetic chuck makes use of the electrical charge of amanent magnet to induce a rotation in a stationary chuck. The rotation results in cutting a particular design into the workpiece. However the magnetic chuck is not a surface grinder and requires practice and accuracy in its use.
Surface grinders are a good choice for machinists who want to reproduce a professional look at their work. They are ideal for cutting and polishing elaborate designs and patterns. These types of machines use accurate inner working parts that make them ideal for intricate patterns and precision machined products. The only disadvantage is that these machines can be quite noisy; hence they are often used by operators who have to operate them in small areas.
The basic operation of a surface grinder consists of a grinding wheel with a tapered surface on one end and a tapered surface on the other. When the force applied to the wheel strikes the workpiece it causes the grinding wheel to move in a circular motion. As the workpiece rotates the grinding wheel also rotates. This continuous operation of the grinding wheel results in a very precise circular movement which is termed as backlash. This type of backlash is necessary in order to get a high degree of precision in milling. This is because the smaller the workpiece the larger the force applied to the grinding wheel results in a smaller amount of backlash.
A second method of getting a fine finish with a surface grinder is to use a grit guide on the work bed. It should be placed in such a way that when the grinding wheel is moved against the work piece it causes a minute amount of friction. The small amount of friction produced by this action makes it possible for the workpiece to be ground finer than would be possible if the wheel were to move at a constant velocity. This method is used in conjunction with a rotating stand.