ISO 7755-2:2013

Overview

ISO 7755-2:2013 is an international standard published by the International Organization for Standardization (ISO) that specifies the main dimensions for hardmetal burrs of cylindrical shape, identified by the symbol A. This standard forms part of the broader ISO 7755 series focused on hardmetal burrs, which are cutting tools made from hard cutting materials. The cylindrical burrs standardized in ISO 7755-2 are used primarily in metalworking and precision machining to achieve fine cutting, grinding, and surface finishing.

This second edition updates the previous version from 1984 and aligns dimensional specifications with current manufacturing and measurement practices. Tolerances related to cutting diameter, helix direction, and shank dimensions are addressed in ISO 7755-1:2013, the companion general specifications document.

Key Topics

• Cylindrical Burr Dimensions:

  • The standard specifies the main dimensions of the cutting part-the cutting diameter (d) and cutting edge length (l)-for cylindrical burrs.
  • Typical dimensions range from 2 mm to 16 mm in diameter, with corresponding cutting edge lengths from 10 mm to 25 mm.

• Designation and Symbolism:

  • Hardmetal cylindrical burrs are designated as style A in the ISO 7755 series.
  • Dimensional parameters are expressed with symbols, such as "d" for cutting diameter and "l" for cutting edge length.

• Relationship with ISO 13399:

  • Annex A provides a correlation between designations in ISO 7755-2 and preferred symbols from the ISO 13399 series, facilitating data exchange and representation in digital manufacturing systems.

• Normative References:

  • ISO 7755-1:2013 – General specifications for hardmetal burrs, which details tolerances and designations necessary for full compliance.

Applications

ISO 7755-2:2013 is essential for manufacturers, engineers, and quality control professionals involved in the production and use of hardmetal burrs, especially cylindrical types used in:

• Metalworking Industry:
  Ensuring consistent burr dimensions facilitates reliable cutting performance in deburring, shaping, and surface preparation tasks.

• Precision Machining:
  Cylindrical burrs are widely used for fine surface finishing and detail work in tool and mold making.

• Manufacturing & Tool Supply:
  Standardized dimensions allow tooling suppliers to provide burrs that meet universal quality standards and fit common toolholders.

• CAD/CAM and Digital Manufacturing:
  The linkage to ISO 13399 enables smooth integration of burr specifications into computer-aided design and manufacturing software systems for process optimization.

Related Standards

For comprehensive understanding and proper use of hardmetal burrs, several related ISO standards should be considered:

• ISO 7755-1:2013 – Hardmetal burrs: General specifications covering tolerances, shank sizes, and burr designations.

• ISO 7755 Series (Parts 3-12):
  Standards defining other burr styles – including round-ended cylindrical burrs, spherical burrs, flame burrs, cone burrs, and more – each suited for specialized machining needs.

• ISO 13399 Series:
  International standard for the representation and exchange of cutting tool data, improving interoperability between manufacturers and users.

Keywords: ISO 7755-2:2013, hardmetal burrs, cylindrical burrs, cutting tool standards, metalworking tools, cutting diameter, burr dimensions, ISO 7755 series, machining burrs, ISO 13399 compatibility, cutting edge length, precision machining tools.