EN ISO 18388:2019 PDF

Name: EN ISO 18388:2019 — Technical product documentation (TPD) - Relief grooves - Types and dimensioning (ISO 18388:2016)
SKU: EN ISO 18388:2019
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Technical product documentation (TPD) - Relief grooves - Types and dimensioning (ISO 18388:2016)

Название (английский):

EN ISO 18388:2019

Technical product documentation (TPD) - Relief grooves - Types and dimensioning (ISO 18388:2016)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 15
Дата публикации:: 2 октября 2019 г.
Издание:: CEN EN 18388 edition 1 version 1
ICS:: 01.100.01

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Описание (английский):

ISO 18388:2016 specifies a series of relief grooves for shafts and holes, intended for general use in mechanical engineering. It also intends to avoid unnecessary multiplicity of tools by a restricted selection of groove-types and dimensional versions. NOTE The shape and the dimensions of the relief grooves type G and H correspond with the "Indexable hard material inserts" according to ISO 6987.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 18388:2019 (ISO 18388:2016) is a Technical Product Documentation (TPD) standard that defines a limited series of relief grooves for shafts and holes used in mechanical engineering. Its purpose is to standardize groove types and dimensioning for general use, reduce unnecessary variety of tooling, and ensure consistent representation on technical drawings. The standard is adopted by CEN as EN ISO 18388:2019.

Key topics and requirements

Scope & intent: Specifies relief grooves for rotationally symmetric workpieces (shafts and holes) intended for subsequent machining or assembly.

Groove types: Four principal forms are defined - Type E, F, G, and H. Each type is intended for different interface conditions:

Type E: for planar surfaces not subject to high fatigue loads, with subsequent machining of cylindrical surface.
Type F: for perpendicular surfaces intended for subsequent machining.
Type G: for parts not subjected to high fatigue loads where a small included angle is required.
Type H: for perpendicular surfaces with a greater included angle, intended for subsequent machining.

Dimensioning rules: The standard supplies tables of radii (r), depths (t), widths (f/g) and recommended series (series 1 preferred) for different nominal diameters. Dimension tables cover both normal and alternating loads and indicate where certain types are not applicable (e.g., Type G limited for low-fatigue applications).

Countersink at counterpart: Provides minimum countersink dimension a for mating parts to ensure clearance.

Designation format: Clear naming convention - e.g., “Relief groove ISO 18388 – E 0,8×0,3” (type letter and r×t).

Drawing presentation: Two accepted representations - conventional detailed views and simplified symbols. Simplified representation should use a continuous wide line (type 01.2 per ISO 128-24) with leader/reference lines per ISO 128-22.

Practical applications

Mechanical designers and drafting engineers use EN ISO 18388 to specify standard relief grooves on shafts, bores and shoulders to:

Prevent interference between mating parts
Facilitate subsequent machining and assembly
Reduce tooling variants and simplify production planning

Manufacturing engineers, CNC programmers and toolmakers use the dimension tables to select cutting tools and set machining operations.

Quality and inspection teams apply the designation and drawing conventions to verify compliance with documented groove geometries.

Related standards

ISO 128-22 (leader/reference lines), ISO 128-24 (lines on mechanical drawings) - referenced for drawing presentation.

ISO 6987 - related to “indexable hard material inserts”; Shapes/dimensions of Types G and H correspond to ISO 6987.

Keywords: EN ISO 18388:2019, ISO 18388:2016, relief grooves, technical product documentation, shafts and holes, groove dimensioning, mechanical engineering drawings.

EN ISO 18388:2019 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications

Who should use this standard

Related standards

Технические детали

ISO 18388:2016

Technical product documentation (TPD) — Relief grooves — Types and dimensioning

SIST EN ISO 18388:2019

Technical product documentation (TPD) - Relief grooves - Types and dimensioning (ISO 18388:2016)

BS ISO 12824:2016

Royal jelly. Specifications.

SIST EN ISO 128-2:2023

Technical product documentation (TPD) - General principles of representation - Part 2: Basic conventions for…

ISO 6987:1998

Indexable hard material inserts with rounded corners, with partly cylindrical fixing hole — Dimensions