MOULD AND DIE INDUSTRY 144 / NORTON WINTER PRECISION TECHNOLOGY TOOL GRINDING POLISHING RECOMMENDATIONS MATERIAL SPECIMEN PREMACHINING Norton WINTER DIAPLAST® AS PASTE OR SUSPENSION POLISHING UNDERLAY NOTES Ore samples (of various compositions) Diamond wheel/foil D126 or D91 or wet grinding to 1000 grit D15 D7 D3 D1* 1007 1007 31 31* * Whether machining with Norton Winter Diaplast D1 and D0.25 is necessary depends on the respective materia hardness. In samples with constituents of differing hardnesses this is normally necessary. Ceramic samples Diamond wheel D126 Diamond foil D64 or D46 D25 D15* D7 D3 D1 D0.25** 1007 1007* 1007 31 31 Soft cloth** * Dispensed with in samples with constituents whose hardness differences are only slight. ** Is only necessary in samples also containing softer constituents Carbon Saw-cut D7 D3 D1 D0.25* 1007 31 31 Soft cloth* * Is only necessary in soft types of carbon. These recommendations have been compiled on the basis of our experience with common materials. Due to the large variety of alloys and material compositions, optimal results may require slight deviations from the above table in some cases. It is possible, in principle, to miss out individual grit sizes, but this mostly results in longer polishing times which may cause relief formation. Our metallographic laboratory is available for consultation in difficult cases. MOULD AND DIE INDUSTRY POLISHING
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