Abstract
In the paper basic experimental tests were carried out to compare the wear indicators of selected abrasive grinding discs in grinding process of steel. Experimental tests on the wear and efficiency of metal grinding discs were made for four types of steel (S235, NC6, Hadfield steel, WNLV + QT steel). The wear parameter included in the ISO standard (KG) of new abrasive discs from European market were examined. This paper presents an analysis of the efficiency and wear of the company’s „MOST” grinding discs using an angle grinder.
Highlights
Cutting is the primary means of separating the material
Grinding wheels A, B, C and D are characterized by similar machining efficiency, but for WNLV steel and Hadfield steel the efficiency of the first one is the lowest
The best resistance to abrasion is characterized by WNLV steel and Hadfield steel, which according to the results obtained were similar
Summary
Cutting is the primary means of separating the material. This process is being studied by many researchers [1,2,3,4,5,6,7]. The contribution of each of the stages depends on the properties of the workpiece, grinding parameters, friction conditions and the geometry of the abrasive grains [2, 11, 26,27,28,29]. As a result of friction, large amounts of heat are generated [20, 23] This causes a significant increase in the temperature of the surface and its structural changes. When cutting using a power tool it is cooled with air This results in intense and significant changes in the shape and dimensions of the tool due to its wear, increased heat affected zones, structural changes due to high temperature. The applications of CAx systems used in manufacturing and CNC branch are outlined in many papers [30,31,32,33,34,35,36]
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