3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: CATIA V5 Training Foils 3D Functional Tolerancing and Annotation S E EM Version 5 Release 19 T YS August 2008 S T L AU EDU_CAT_EN_FTA_FF_V5R19 S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 1 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) About this course StudentNotes: Objectives of the course Upon completion of this course you will be able to: - Add 3D annotations to a part - Manage and position these annotations - Create and manage annotation planes and views - Manage the 3D geometry associated to the 3D annotations Targeted audience Mechanical Designers Prerequisites Students attending this course should be familiar with - Basics of Solids and Surfaces creation. - Basics of Knowledgeware. S 2 Days E M E T S Y S T L U A S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 2 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: Table of Contents (1/3) Introduction to FT&A 6 Why do we need Geometrical Tolerances and Annotations 7 How to Generate Annotations 8 Basic Concepts of FTA 10 Unique Tolerancing Channel 16 Getting Familiar With FTA Workbench 24 To Sum Up 29 The Tolerancing Advisor 30 What is Tolerancing Advisor 31 Different ISO Standards Rules 32 Creating Datums 37 Creating Semantic Annotations 45 N Elements Tolerancing 54 Creating Non-Semantic Annotations 62 Creating Framed Dimensions 67 To Sum Up 73 Creating & Managing FTA Annotations 74 S Creating View/Annotation Planes 75 E M E T S Y S T L U A S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 3 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: Table of Contents (2/3) Aligned Section Views and Section Cuts 83 Offset Section view / Section Cut 87 Editing and Managing Annotations 91 Managing Captures 95 Generating Check Report 102 To Sum Up 103 Geometry for 3D Annotations 104 Creating Constructed Geometry 105 Geometry Connection Management 110 To Sum Up 120 Advanced Functions 121 What are Restricted Areas 122 How to Create Restricted Areas 123 How to Create Datum Targets 125 Creating Thread Representations 127 How to Create Thread Representation 128 How to Create Knowledge Formulas on Tolerances 129 To Sum Up 132 S E M E T S Y S T L U A S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 4 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: Table of Contents (3/3) The User Settings 133 FTA Settings - Tolerancing 135 FTA Settings - Display 136 FTA Settings - Constructed Geometry 139 FTA Settings - Manipulators 140 FTA Settings - Dimension 141 FTA Settings - Annotation 143 FTA Settings - Tolerances 144 FTA Settings - View/Annotation Plane 146 The Infrastructure Settings 148 Generative Drafting Settings 151 Co-ordinate Dimension Display Settings 152 To Sum Up 153 S E M E T S Y S T L U A S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 5 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: Introduction to FT&A You will become familiar with the concepts behind 3D Functional Tolerancing & Annotation workbench Why do we need Geometrical Tolerances and Annotations How to Generate Annotations Basic Concepts of FTA Unique Tolerancing Channel Getting Familiar With FTA Workbench To Sum Up S E M E T S Y S T L U A S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 6 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: Why do We Need Geometrical Tolerances and Annotations Designers create parts that are generally required to create an assembly of a particular product. Each part will be engineered to perform a function and, most importantly, to assemble with a mating part. Thus every part should EXACTLY FIT in the final assembly and answer the requested functions. Parts cannot be manufactured to exact sizes because of natural imperfections in the world, including machine tools, part programs, tooling, and also human errors. So a plan is needed to allow the production process to accept the imperfections. This gave rise to the concept of “Tolerancing” or “Allowable Deviation”. A tolerance is the amount of deviation from the exact size allowed on a part. Any part within the tolerance will still be functional. S ME Designers need to set part tolerances that are large enough to keep manufacturing costs E T YS down and close enough to ensure that all parts will assemble with the mating part. S T L U A S AS It is easy for the designer to use a close tolerance on features to reduce part dimension D ght variables; however the part cost increases dramatically as tolerances are reduced. pyri o C Copyright DASSAULT SYSTEMES 7 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: How to Generate Annotations (1/2) Identify the Geometrical Features of the mechanism Identify the ‘Use Aptitude Conditions’ The ‘Use Aptitude Conditions’ are the functional requirement conditions identified during the functional analysis of the mechanism. Here is a mechanism with ‘Use Aptitude Conditions’ to respect: (cid:1) UAC 1: Radial gap > 0.1mm (cid:1) UAC 2: Axial gap > 3mm UAC 1 UAC 2 S E M E T S Y S T L U A S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 8 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: How to Generate Annotations (2/2) UAC 1 UAC 2 UAC 1 Radial gap > 0.1mm S E M E ST UAC 2 Axial gap > 3mm Y S T L U A S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 9 3D Functional Tolerancing and Annotation (cid:1)(cid:2)(cid:3)(cid:4)(cid:5)(cid:6)(cid:2)(cid:7)(cid:8)(cid:3)(cid:9)(cid:4)(cid:5) StudentNotes: Basic Concepts of FTA In this section, you will be introduced to the basic concepts of Functional Tolerancing and Annotations. Virtual world Real world S E M E T S Y S T L U A S S A D ht g pyri o C Copyright DASSAULT SYSTEMES 10