FIELD: abrasive working processes and equipment, namely manufacture of abrasive tools with binder having structure permeable for fluid flow.
SUBSTANCE: tool contains 5 -75 vol. % of sintered agglomerates of three-dimension shape. Binder melting temperature is in range 500 - 1400°C. Tool includes 35 - 80 vol. % of total porosity containing at least 30 vol. % of intercommunicating porosity. Agglomeration of abrasive grains is performed at tumbling grains and binder material in rotary burning kiln. It provides manufacture of abrasive tools with high porosity degree.
EFFECT: improved operational properties of abrasive tool at accurate grinding operations with large contact zone areas.
93 cl, 3 dwg, 32 tbl, 15 ex
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