ISO 16084:2017 Preview

Balancing of rotating tools and tool systems

ISO 16084:2017 specifies requirements and provides calculations for the permissible static and dynamic residual unbalances of rotating single tools and tool systems. It is based on the guideline that unbalance related centrifugal forces induced by the rotational speed do not harm the spindle bearings, as well as prevent unbalance related impairments of machining processes, tool life and work piece quality.

NOTE 1 Tools and tool systems covered by ISO 16084:2017 are, for example, those with hollow taper interfaces (HSK) according to ISO 12164-1 and ISO 12164-2, modular taper interface with ball track system according to the ISO 26622 series polygonal taper interface according to the ISO 26623 series, taper 7/24 according to ISO 7388-1, ISO 7388-2, ISO 9270-1 and ISO 9270-2 related to their individual operating speed.

Modular tool systems are another important and complex issue of ISO 16084:2017. Calculations and process descriptions for balancing these components and the assembled tool systems are included.

ISO 16084:2017 is putting an important focus on the possible clamping dislocations of tool shanks and their effects on the balancing procedure. These dislocations can occur between a tool or a tool system and the machine tool spindle (e.g. with every tool change), as well as within a modular tool system during its assembly.

NOTE 2 Unfavourable process or system conditions (e.g. partial resonances of the machine structure generated by particular rotational speeds) or design and machine-related technical conditions (e.g. the projecting length of the axes, narrow space conditions, vibration susceptible devices, clamping devices and tool design) may lead to increased vibration loads and balancing requirements. This is dependent on the individual interaction of the machine and the tool spindle system and cannot be covered by a standard. A deviation from the recommended limit values of ISO 16084:2017 can be required in individual cases.

NOTE 3 Wear of the shank interfaces may lead to possible variations of the clamping situation and thus to worse run-out and balancing conditions. These errors cannot be specifically addressed in a standard.


General information

  • Status :  Published
    Publication date : 2017-10
  • Edition : 1
    Number of pages : 71
  • :
    ISO/TC 29
    Small tools
  • 21.120.40
    Balancing and balancing machines
    25.100.01
    Cutting tools in general

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