What is the difference between cutting wheel and grinding wheel
Unfortunately, your bench grinder and portable angle grinder are located on the other side of the shop. Is it OK to use the side of the cutting-off wheel to quickly deburr your part to save some time? Cutting-off wheels are for cutting on the periphery ONLY. Using a cutting-off wheel for side grinding can have serious consequences. The photographs in Figure 1 below show what can happen to a cut-off wheel when the side is used for deburring or grinding. The workpiece can cut through the reinforcing side fiberglass weakening the wheel.
This may result in wheel breakage and injury. Functionally,the abrasive particles of grinding wheel equals to the tips of cutting tools; the bond agent of grinding wheel equal to the retainer or tool holder that holds the tooltips;the pore of grinding wheels equals to the chip space of cutting tools.
Cutting versus grinding, due to its different processing physics, when processing material which is soft and easy to process, it can play a high speed role of machining.
When the tool tip is passivated, the tool can only be replaced, while the grinding wheel has "self-sharpening effect", the abrasive grains can automatically generate new grains after passivated. When countless cutting tools work together, even its cutting feed is small, it can still have high processing efficiency. When process hard cutting materials due to its different machining angle, grinding processing also enjoys more advantages!
Therefore if want to get better dimensional accuracy and surface roughness, and the workpiece materials are hard, grinding is a better choice. In addition, it is also common to take cutting as the pre-process processing, while grinding as the post-process finishing. Understand the characteristics of nickel-based…. Typical examples of such processes include grinding, honing, lapping, etc. All these processes are suitable for finishing rather than bulk removal.
Grinding utilizes a cylindrical wheel, called grinding wheel , made of abrasives as its cutting tool. Abrasive material, abrasive size, binding material, and other relevant parameters of grinding wheel are pre-defined; however, geometry of abrasives is not defined.
Various differences between cutting tool and grinding wheel are given below in table format. Single point and multi-point cutter: A cutting tool may consists of one or more active cutting edges within the cutter body. A single point cutting tool is one that has only one main cutting edge to participate in material removal action at a time. If more than one cutting edge simultaneously participate in cutting action, then that cutter is termed as multi-point cutter. A single point cutter is cheaper and easy to fabricate but cannot take high chip load and thus process becomes less productive.
Turning, shaping, planing, boring, fly cutting, etc. Therefore, a cutting tool may be single point or multi-point; but grinding wheel is always multi-point cutter.
Material of cutters: A cutting tool can be made of various materials like carbon steel, high speed steel HSS , tungsten carbide, ceramics, diamond, cubic boron nitride cBN , etc. Different materials display varying capability and thus a compatible one is usually selected based on work material, machining process and other concerned parameters to achieve best performance.
Grinding wheel is made of abrasives like alumina, silica and diamond. Such abrasive grits are bound in another soft or hard medium like resin, metal, etc. Cutter geometry: Geometry, orientation and material are three important parameters that governs overall machining performance in every machining.
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