ISO 10242-3:2008

Overview

ISO 10242-3:2008 is an international standard developed by the International Organization for Standardization (ISO) that defines the specifications for punch holder shanks, specifically Type D, used in press tooling applications. This standard ensures the interchangeability of punch holder shanks by specifying critical dimensions, tolerances, and hardness requirements. As part of the broader ISO 10242 series, it plays a crucial role in unifying tooling components for manufacturing and metal pressing industries, promoting compatibility and quality.

Key Topics

Interchangeability Dimensions and Tolerances:
ISO 10242-3:2008 precisely defines the geometric dimensions and tolerances of Type D punch holder shanks-measured in millimetres-to guarantee that components fit seamlessly across different press tools. The standard includes detailed diagrams and tables for dimensions such as body diameter, thread pitch, and length.

Material Guidance and Hardness Requirements:
While the selection of material is at the manufacturer’s discretion, the standard mandates a minimum hardness of 140 HB (Brinell hardness). This hardness level ensures durability and longevity of the punch holder shanks under repeated mechanical stress during pressing operations.

Designation System:
The standard provides a clear system for designating Type D punch holder shanks, incorporating:

• The generic term "Punch holder shank"
• Reference to ISO 10242-3
• The specific type (D)
• The body diameter (D1) in millimeters
• The nominal thread diameter (D3)
  This designation aids in straightforward identification and communication across suppliers, manufacturers, and maintenance teams.

Surface Texture Specifications:
Updated to align with ISO 1302:2002, ISO 10242-3:2008 specifies surface roughness values in micrometres to ensure appropriate surface finish and performance in tooling environments.

Applications

ISO 10242-3:2008 is essential for manufacturers, engineers, and quality control specialists involved in tooling and press operations, particularly where punch holder shanks are a critical component. Typical applications include:

• Sheet metal forming and pressing tools
• Die and mold manufacturing
• Industrial press assemblies requiring standardized tool components
• Maintenance and replacement services ensuring component compatibility
• Quality assurance for tooling suppliers to meet international standards

By adhering to ISO 10242-3, companies can reduce tooling errors, improve interchangeability, and optimize production workflows in metal pressing environments.

Related Standards

ISO 10242-3:2008 is part of a series focused on punch holder shanks, which includes:

• ISO 10242-1: Punch holder shanks - Type A
• ISO 10242-2: Punch holder shanks - Type C

Additionally, it references other important standards relevant for compliance and quality:

• ISO 6506: Metallic materials - Brinell hardness test, which defines testing methods for material hardness
• ISO 1302:2002: Geometrical Product Specifications (GPS) - Indication of surface texture in technical product documentation, critical for surface roughness specifications

These related standards collectively support manufacturing precision and global interoperability of press tooling components.

Keywords: ISO 10242-3, punch holder shank, Type D, press tools, interchangeability dimensions, tooling standards, hardness requirements, metal pressing, surface texture, manufacturing tools, ISO standards for tooling.