Grinding wear

The principal characteristics of grinding wear are that it is caused primarily by particles under high stress that cut, or plow, many very small grooves at relatively low speed across a metal surface. This high-stress, low-speed operation is characteristic of tillage tools (plows, cultivators, rakes, etc.) and other ground-contact parts, such as bulldozer track shoes, cutting edges of blades, and the like. There are many other operations in other industries that have similar effects on the metal parts. These tend to dull cutting edges, changing their shape to make them perform their function less efficiently or not at all and generally causing unsatisfactory service. Thus, grinding wear can be recognized if the type of service that caused it is known and if the wear occurs at high-stress locations, particularly points and edges, causing a general change in shape of the part or parts concerned. When two hard metal surfaces slide against each other, frequently in the presence of a lubricant, each may tend to smooth the other, particularly if fine abrasive particles are present. When properly controlled, this process may be very useful as a lapping, or polishing, process in which there is only one metal surface together with the fine abrasive material that is used for the polishing operation. - Internet Partner
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