The Simulative Shape Selection And Grading Of Diamond Abrasives

In order to satisfy the need of abrasive testing process in diamond enterprise, the intrinsic relation between the image parameters and the thermal impact strength of diamond abrasives was studied . Using the method of simulative shape selection and grading sort diamond abrasives.The result of simulative shape selection was compared with the result of actual shape selection in the diamond production, the operability of the method and accuracy of the sorting results were studied through experiments. To achieve the above research aim,The static compressive strength was measured by using automatic compressive strength tester. The impact strength tester was used to test toughness index and the thermal toughness index,the DiaInpect.OSM system was used to analyse the image of the scanned diamond.Experimental datas were processed respectively. According to the testing result ,the corresponding linear function was fitted with the main scanned morphology parameters and the main performance index thermal toughness index.The result shows that this test method has unique advantage which can get performance parameters of diamond abrasives accurately and quickly without using the granularity analyzer, the strainer and the optical microscope .The parameters contain elliptic, arealight, roughness and so on. This testing method can replace massive destructive experiments in the actual test to get their TTI value by analyzing the scanning parameters combined with the calculated function datas.So its quality was judged initially.And then the three-dimensional virtual selection and grading was carried on to finally judge the grade of the abrasives. In various image analysis parameters, arealight and elliptic are the greatest influence factors on the diamond operational performance,the both has the most notable correlation with the thermal toughness index . The greater the arealight and the smaller the elliptic, the better the quality of diamond. Simulative shape selection has reality significance in the process of diamond abrasive selection, it can support the actual sorting work. Before the actual selection ,it can replace the actual selection to forecast the sample grade.After actual selection and grading ,it can check up the result to find the possible error. This method can save a lot of manpower and material resources ,it has economic benefit.