ISO 7755-10:2013

Overview

ISO 7755-10:2013 is an international standard developed by ISO (International Organization for Standardization) that specifies the main dimensions for hardmetal burrs of conical shape featuring a round (ball) nose shape. These burrs are designated by the symbol "L" and are commonly used cutting tools made from hard cutting materials such as tungsten carbide. This standard is part of the broader ISO 7755 series, which covers various burr styles and their specifications.

The purpose of ISO 7755-10:2013 is to ensure uniformity in the dimensions of the cutting part of these burrs for global interchangeability, quality assurance, and manufacturing consistency. It primarily addresses the cutting diameter, profile radius, and cutting edge length of conical round-nose burrs.

Key Topics

• Scope and Applicability
  The standard applies specifically to conical burrs with a round (ball) nose, used for precise cutting and shaping in machining applications.

• Main Dimensions
  Dimensions specified include:

  • Cutting diameter (d)
  • Profile radius (R) – the radius of the ball nose end
  • Cutting edge length (l)

• Tolerances and Designations
  While the document defines the key dimensions, tolerances for cutting diameter, helix direction, and shank sizes are referenced from ISO 7755-1 (General specifications).

• Symbol and Coding
  Burrs are designated by the symbol "L" within the series. The document aligns its designations with ISO 13399, the series dedicated to cutting tool data representation, enhancing compatibility with digital tool management systems.

• Reference Tables and Figures
  Includes dimensional tables for burr sizes with respective radii and cutting edge lengths to aid manufacturers and users in standard selection.

Applications

Conical round (ball) nose hardmetal burrs as standardized by ISO 7755-10:2013 are widely used in various industrial and manufacturing processes, including:

• Precision Machining and Deburring
  Ideal for finishing operations, removing burrs from metal surfaces, and shaping intricate parts with smooth rounded edges.

• Tool and Mold Making
  Used extensively for contouring and detailing molds and dies requiring precise radii and surface finishes.

• Aerospace and Automotive Manufacturing
  Applied in high-precision component fabrication where burr control and surface integrity are critical.

• Metalworking and Engineering Workshops
  Commonly employed in hand-held rotary tools and CNC machining centers for versatile material removal tasks on hard metals.

Related Standards

• ISO 7755 Series
  ISO 7755-10 is part of a comprehensive collection of standards defining hardmetal burrs, including:

  • Part 1: General specifications
  • Part 2: Cylindrical burrs (style A)
  • Part 3: Cylindrical round-nose burrs (style C)
  • Part 4: Spherical burrs (style D)
  • Parts 5 to 12: Various other burr shapes and styles

• ISO 7755-1: General Specifications
  Details tolerances, shank dimensions, and burr designation systems referenced by ISO 7755-10.

• ISO 13399 Series
  Provides a framework for cutting tool data representation and exchange, facilitating interoperability in CAD/CAM systems and inventory management by integrating burr designation symbols and dimension parameters.

Practical Value

Adhering to ISO 7755-10:2013 helps manufacturers and users of hardmetal burrs benefit from:

• Consistency and Quality Control
  Ensures burrs produced conform to expected sizes and shapes for predictable machining results.

• Interoperability
  Simplifies tool selection, ordering, and data exchange across global suppliers and users.

• Reduced Production Errors
  Clear dimension standards minimize mismatches and optimize tool performance.

• Streamlined Inventory Management
  Standard symbols and dimensional coding ease stock categorization and tool tracking.

By standardizing the key dimensions of conical round-nose hardmetal burrs, ISO 7755-10:2013 supports high-quality manufacturing, enhances safety, and promotes global trade in precision tooling.