Overview
ISO 10649-4:2013 is an international standard specifying the dimensions and designation of cutter arbors with parallel key and tenon drive featuring a 7/24 taper, designed for use without automatic tool changers. This second edition standard ensures uniformity and interchangeability of tool holders in machine tools to prevent collisions during tool exchanges. The scope focuses explicitly on cutter arbors' dimensional requirements, retention methods, and material properties to guarantee reliable and precise tool assembly.
Key Topics
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Dimensional Specifications
The standard defines precise measurements for cutter arbor shanks with a 7/24 taper, including diameters, lengths, and tolerances to ensure compatibility with manual tool changing systems. All dimensions are expressed in millimeters and comply with ISO 2768 general tolerances.
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Parallel Key and Tenon Drive
The cutter arbor features a parallel key and tenon drive system for secure mechanical engagement with cutting tools, conforming to ISO 10643 for key, clutch drive ring, and retaining screw dimensions.
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Material and Hardness
While material choice is up to the manufacturer, the standard mandates a minimum tensile strength of 800 N/mm² and surface hardness of 56 ± 4 HRC on taper and spigot surfaces to withstand operational stresses.
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Designation System
Cutter arbors are designated by combining “Arbor” with the standard reference (ISO 10649-4:2013), shank number, and arbor diameter, establishing a clear and standardized naming convention for easy identification.
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Delivery Requirements
Each cutter arbor must be delivered complete with a compatible parallel key, clutch drive ring, and cutter retaining screw per ISO 10643 to ensure immediate usability.
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Interoperability and Symbol Mapping
The standard includes an informative annex linking its symbols to the ISO 13399 series for cutting tools data representation, facilitating digital data exchange and system integration.
Applications
ISO 10649-4:2013 is essential for manufacturers, engineers, and tool designers involved in manual tool-changing machining centers. Its practical applications include:
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Machine Tool Industry
Ensures standardized tool holder interfaces, reducing downtime and errors during manual tool swaps on milling machines, lathes, and other metal cutting equipment.
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Tool Manufacturing
Provides critical guidelines to design and produce cutter arbors compatible with various cutting tools and machine interfaces, maintaining product quality and interchangeability.
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Maintenance and Replacement
Simplifies selection of replacement arbors and accessories by providing clear designation and dimensional criteria, supporting efficient workshop operations.
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Supply Chain and Quality Control
Assists suppliers and quality assurance teams in verifying compliance of delivered arbor tool holders, ensuring they meet international standards.
Related Standards
ISO 10649-4:2013 is part of the ISO 10649 series covering cutter arbors with parallel key and tenon drives. Important related standards include:
- ISO 10649-1:2010 - General dimensions of cutter arbors with parallel key and tenon drive
- ISO 10649-2:2012 - Dimensions and designation of tool holders with taper interface plus flange contact surface
- ISO 10649-3:2010 - Dimensions and designation of tool holders with 7/24 taper for automatic tool changers
- ISO 10649-5:2013 - Tool holders with polygonal taper interface and flange contact surface
- ISO 10649-6:2013 - Tool holders with modular taper interface with ball track system
- ISO 13399 (all parts) - Cutting tool data representation and exchange, crucial for interoperability and digital tool management
- ISO 2780:2012 - Interchangeability dimensions for cutter arbors with tenon drive
Together, these standards establish comprehensive guidance for the design, manufacture, and use of cutter arbors and tool holders in metal cutting applications, focusing on safety, precision, and compatibility.
Keywords: ISO 10649-4:2013, cutter arbor dimensions, 7/24 taper, parallel key and tenon drive, tool holder standard, manual tool changer, milling cutter arbor, tool holder designation, ISO cutter arbor standards, machine tool accessories, tool holder dimensions, ISO 13399 integration.