ISO/TC 29/SC 5 - Grinding wheels and abrasives

This document specifies a method for determining and testing the grain size distribution of electro-fused aluminium oxide and silicon carbide macrogrit sizes P12 to P220 for coated abrasive products. It is applicable to grits used in the manufacture of coated abrasive products and to grits extracted from coated abrasive products for test purposes.

This document specifies a method for determining and testing the grain size distribution of electro-fused aluminium oxide and silicon carbide microgrit sizes P240 to P5000 for coated abrasive products. It is applicable to grits used in the manufacture of coated abrasive products and to grits extracted from coated abrasive products for test purposes.

This document specifies the chemical analysis of silicon-carbide-based abrasive grains and crudes. It is applicable for the determination of the surface impurities of abrasives grains and the determination of the SiC content of crushed crude when the silicon carbide content is greater than 95 % (mass fraction).

This document is applicable for bonded abrasive products in general. NOTE 1 Bonded abrasive products are e.g. grinding wheels, segments, sticks and stones. This document specifies: a) ISO type number and shape; b) dimensional symbols; c) standard profiles; d) specification; e) designation; f) marking requirements. NOTE 2 This document is general and is complemented by ISO 603 (all parts) that is applicable for dimensions, by ISO 6103 that is applicable for permissible unbalance and by ISO 13942 that is applicable for limit deviations and tolerances. This document is not applicable for superabrasive products and coated abrasive products.

This document specifies the essential limit deviations and run-out tolerances for bonded abrasive products.

ISO 22917:2016 applies to all rotating grinding precision tools with diamond or cubic boron nitride with metal, vitrified or resinoid bonded cores, and circular bores for mounting the grinding tool on a clamping flange as well as to grinding points with cylindrical spindle for mounting in collets. It contains the significant limit deviations and run-out tolerances of these grinding tools.

ISO 21538:2016 specifies dimensions for mounting and fixing bores in blanks. These mounting and fixing bores comply with the relevant dimensions of the clamping flanges specified in ISO 21537‑2.

ISO 9138:2015 specifies the apparatus and the method for sampling and splitting of a lot of abrasive grains, to be used in the comparative testing of uniformly produced abrasive grains.

ISO 6103:2014 specifies the maximum permissible values of unbalances for bonded abrasive wheels with an outside diameter D ≥ 125 mm and maximum operating speed vs ≥ 16 m/s, in the as-delivered condition. It also specifies the method for measuring the unbalance and the practical method for testing whether a grinding wheel is acceptable or not. It is applicable to bonded abrasive wheels in the as-delivered condition. It is not applicable to diamond, cubic boron nitride or natural stone grinding wheels, or to centreless control wheels, lapping and disc wheels, ball wheels or glass grinding wheels.

ISO 603-17:2014 specifies the current shapes, nominal dimensions and limit deviations, in millimetres, of Type 52: Spindle mounted wheels. These bonded abrasive products are intended to be used for hand-held grinding and manually guided or on hand-held power tools guided by hand.

ISO 9284:2013 specifies the operational and technical requirements of, and gives guidance on, the installation, checking and maintenance of test-sieving machines. Test-sieving machines are used for determining the size distribution of bonded and coated abrasive macrograins.

ISO 6106:2013 specifies a method for determining or checking the grain size of superabrasives (diamond or cubic boron nitride) as used for the manufacture of industrial products, such as grinding wheels and saws. It is applicable to the grain size designations defined. It describes the grain size designations, the size limits, the sieves for use in determining them and the procedure to be adopted for checking the grain size exclusive of any coating.

ISO 603-18:2013 specifies the shapes, dimensions and limit deviations, in millimetres, of grinding wheels for flat glass edge grinding machines. This type of bonded abrasive wheel is intended to be used on stationary machines where the position of the grinding wheel is fixed and the workpiece is guided by hand or guided mechanically, or on a stationary machine where the grinding wheel is guided mechanically and the workpiece is fixed.

This International Standard specifies the nominal dimensions and limit deviations of flap wheels with incorporated flanges or separate flanges for use on stationary grinding machines.

ISO 8486-2:2007 sets forth a method for determining or checking the size distribution of microgrits F230 to F2000 in fused aluminium oxide and silicon carbide. It specifies the grit designation for the testing of those grits used in the manufacture of bonded abrasive products and general industrial applications and those removed from bonded products, as well as loose grits used in polishing.

ISO 2976:2005 specifies the nominal dimensions, and limit deviations of abrasive belts. It also specifies the designation and marking of these abrasive belts. It is applicable to abrasive belts intended for use on hand-held grinding machines and stationary grinding machines.

ISO 3919:2005 specifies the nominal dimensions and limit deviations of flap wheels with shaft for use on hand-held grinding machines. It also specifies the designation and marking of the flap wheels.

ISO 6104:2005 gives a general survey, and specifies the designation, of rotating grinding tools with diamond or cubic boron nitride. It also gives a multilingual nomenclature concerning these tools.

ISO 9136-1:2004 specifies a test method for the determination of the bulk density of bonded and coated abrasive macrogrits.

ISO 15636:2003 specifies the design and dimensions of back-up pads intended for the fixing or clamping of vulcanized fibre discs in accordance with ISO 16057, or comparable grinding tools on hand-held grinding machines, e.g. angle grinders. The connecting dimensions of support discs and clamping units are matched for spindle ends with the common practice of this kind of hand-held machine.

ISO 2421:2002 specifies dimensions, tolerances and test conditions for cylindrical abrasive sleeves mounted on holding fixtures for hand-held grinding machines in accordance with ISO 15637-1 and stationary grinding machines in accordance with ISO 15637-2.

ISO 15637-2:2002 applies to holding fixtures for use with cylindrical abrasive sleeves with a diameter greater than 100 mm in accordance with ISO 2421. These holding fixtures clamp the cylindrical abrasive sleeves using different systems, e.g. with a lamellar core or using a pneumatic system, which are used on stationary grinding machines.

ISO 15637-1:2002 applies to holding fixtures with shank for use with cylindrical abrasive sleeves with a diameter equal to or less than 100 mm in accordance with ISO 2421. Holding fixtures with shank having a diameter equal to or less than 100 mm mostly have lamellar cores and are used on hand-held grinding machines. The impact of centrifugal forces on the lamellae result in an increase in diameter and thereby clamp the abrasive sleeve on to the holding fixture.

ISO 16057:2002 specifies the nominal dimensions of vulcanized fibre discs. These vulcanized fibre discs are intended for use on hand-held grinding machines. Vulcanized fibre discs are for use with support discs in accordance with ISO 15636.

This International Standard specifies the dimensions and limit deviations for coated abrasive rolls and their designation.