1.0 What is tolerance analysis? 2.0 What is Tolerance Stackup? 3.0 Generally, the Tolerance Stackup Process 4.0 Method and Types of Tolerance
|
|
- Stephanie Griffith
- 5 years ago
- Views:
Transcription
1 TOLERANCE ANALYSIS
2 1.0 What is tolerance analysis? 2.0 What is Tolerance Stackup? 3.0 Generally, the Tolerance Stackup Process 4.0 Method and Types of Tolerance Analysis 5.0 Worst-case Tolerance Stackup 6.0 Assembly shift 7.0 Worst-Case Tolerance Stackup Example
3 Is a global term that includes two subcategories. 1.0 It describes the methods used to determine the meaning of individual tolerancing specification 2.0 It is the process of determining the cumulative variation possible between two or more feature ( Tolerance Stackup )
4 First Step : Before a Tolerance Stackup can be performed, the dimensioning and tolerancing specification applied to a drawing must be clearly understood. Tolerancings specifications are complex, it takes training and practice to be able to fully understand tolerancing specification.
5 Second Step: By using tolerance stackup techniques, it allows the Tolerance Analyst to study the cumulative effects of multiple tolerances. A distance or displacement is chosen as the subject of the study (usually represents a nominal gap or interference) Typically the distance or gap between the features to be studied is not directly dimensioned or tolerance ( the distance between two parts that must not enough)
6 Tolerance Analysis Is a study of individual tolerances an their meaning, and it is the study of the cumulative variation between part feature. Tolerance Stackup Are the means of analyzing and predicting that variation, regardless of whether the features only exist on paper or if parts have already been manufactured
7 The most common application; # to verify needed clearance or it may be to verify a needed interference condition. # to verify fit # determined the size location, and orientation of every clearance hole and tapped hole that receives a fastener Some of this tolerance analysis are so simple that the engineer doesn t even realize that he or she is analyzing tolerances!!
8 Quite simple : Is a decision making tool By performing tolerance stackup, information is obtained that helps to answer one or more questions about a particular design. The result of tolerance stackup is almost always a minimum and maximum distance. The information obtained can be used to determined if a change must be made to the dimensions and /or tolerances of the parts being studied.
9 !" The distance to be studied is identified and labeled The positive and negative directions of the Tolerance Stackup are identified A Tolerance Stackup sketch is create The dimensions in the positive direction are added together The dimensions in the negative direction are added together.
10 The negative direction total is subtracted from the positive direction total to find the nominal distance. All applicable tolerances are added together. This is the total possible variation. Half of the total possible variation is added to the nominal distance to find the Upper Limit for the distance Half of the total possible variation is subtracted from the nominal distance to find the lower limit for the distance.
11 #$%%& Two method 1.0 Manually modeled Analyses done by hand, using pen and paper or spreadsheet programs. 2.0 Computer Modeled Analyses performed by computer statistical simulation programs. Three-dimensional analyses are best suited to computer-modeling tools.
12 Tolerance stackups may be done on any toleranced part, or any assembly of toleranced parts. A tolerance stackup cannot be done on a part or assembly that is not toleranced.
13 '()'%)
14 )*()'%)
15 +, Worst-case Tolerance Stackup determine the absolute maximum variation possible for a selected distance or gap. This distance is usually not dimensioned (it may have a reference dimension) and is not directly toleranced This method assumes that all dimensions in the Tolerance Stackup may be at their worst-case maximum or minimum
16 Tolerance Stackups as defined in this chapter follow a chain of Dimensions and Tolerances. The dimensions and tolerances in a Tolerance Stackup are called a chain of Dimensions and Tolerances. It is because the Dimensions and Tolerances that make up the Tolerance Stackup are arranged like the links in a chain, and followed head-to-tail from one end of the distance being studied (call it point A ) to the other ( call it point B)
17 &( )) (, )%
18 Step 1: Indicate the distance (gap or interference) want to analyze (as indicate A and B in figure 1.1).
19 Step 2: Change the dimension on the drawing to mean dimensions and mean tolerances (refer figure 1.2) Mean Dimension = [(Upper Limit + Lower Limit) / 2] Mean Tolerance = [(Upper Limit - Lower Limit)/2]
20 Step 3: Set the positive (+ve) and negative ( ve) direction. For this analysis, the right direction is +ve and left direction is ve. (no rule to choose +ve and ve direction but both of its must be opposite direction). (See figure 1.3).
21 Step 4: Draw the first vector. The first vector started at the one of the point to be analyzed. The second vector must start from the end of the first vector. The third vector will starts from the end of the second vector. The next vector will continue draw until the last vector which will finished at the Point B. (see figure 1.3). Figure 1.4 shows the chain of the vector starts from Point A and finished at Point B. The distance (gap or interference) between the starting point and finishing point will be analyzed.
22 Step 5: From the chain of the vector shows in figure 1.4, the dimensions and tolerances are filled into the Table 1.1. The totals of dimensions in positive and negative direction are calculated. The cumulative of the tolerance also calculated. Step 6: Based on data on Table 1.1, the maximum and minimum distance gap are calculated by equation (1) and (2). From tolerance analysis done for this part, the maximum distance is 15 and the minimum distance is 8. This calculation can easy applied by using Microsoft Excel.
23 So, if the maximum and minimum distance (15 and 8) is not fulfilled the Product Designer, the changes can be make easily by changing any tolerances and dimension. The minimum distance = [(Total +ve direction) (Total ve direction)]-(total Tolerance) = [(56.5) (45)] - (3.5) = (1) The maximum distance = [(Total +ve direction) (Total ve direction)]+ (Total Tolerance) = [(56.5) (45)] + (3.5) = (2)
24 )*& The amount that part can move during assembly due to the clearance between a hole and a fastener, a hole and a shaft, a width and a slot or between any external feature within an internal feature. Assembly shift accounts for the freedom parts have to move from their nominal locations due to the clearance between mating internal and external features at assembly.
25
26 &*&
27 &*&
28 Consider an 8-mm fastener passing through a 10 mm hole, there is 2mm clearance and the part can shift 2 mm total, or ± 1 mm in any direction normal to its axis.
29 Given the hole and fastener combination, it is apparent that the maximum assembly shift is possible when the hole is manufactured at its largest (LMC) size of 10.6 mm. The worstcase assembly shift is determined by subtracting the smallest possible fastener diameter from the largest possible hole diameter.
30 ,)*&
31 The worst-case assembly shift applies to each part. Each part may shift +/-1.3mm relative to the fastener, leading to Total Assembly Shift of 2 *±1.3 = ±2.6
32 -,.) The tolerance Stackup example that follow increase in complexity from finding a minimum and maximum distance on a very basic part and to finding a minimum and maximum distance on a complex welded assembly. All of the examples are based on parts dimensioned and toleranced using the plus/minus (±) system.
33 .) A pin is the subject of study To determine the minimum and maximum width of the groove in the pin. The groove was not directly dimensioned and toleranced on the drawing. Unfortunately, drawings are not always dimensioned and toleranced functionally, and this example shows how tolerances may accumulate when the dimensioning and tolerancing scheme is not optimized.
34 !/ Pin with groove
35 ('//
36 .) A part like the one presented at the beginning of this slide To determine the minimum and maximum distance between two parallel surfaces on the part. The distance was not directly dimensioned and toleranced on the drawing. If this distance had been directly dimensioned and toleranced a Tolerance Stackup would not be required.
37 )
38 )/
39 .) A simple assembly is studied. To determine the minimum and maximum distance between opposing surfaces on two parts in the assembly. The distance was not directly dimensioned and toleranced on the drawing.
40 ))* 8±1
41 ))*/%
42 ))*/%
43 .)# An assembly with parts assembled in the vertical direction is studied. The assembly will be greatly affected by the force of gravity, which will most likely pull the bracket ( part number 3) down against the fasteners. The fasteners will in turn be pulled down against the holes in the hanger ( part number 2). This will add assembly shift to the chain of Dimensions and tolerances twice, one for the hole in the hanger and once for the hole in the bracket. It is assumed that the frame ( part number 1) and the hanger are fixed in space. To determine the maximum distance between the upper surface of the frame and the lower surface of the bracket
44 ')*0('/% )*&1
45 &')*
46 ,')*%
47 /%
48 .)-+ An inseparable assembly ( or weldment) is studied. To determine the maximum distance between part 5 and 6 in the assembly. The distance was not directly dimensioned and toleranced on the drawing. If this distance had been directly dimensioned and toleranced a Tolerance Stackup would not be required, as the minimum and maximum value could be easily calculated right from the drawing.
49 ).(%%)*
50 ). (%% )* 0 1
51 /%
52 The end
Advanced Dimensional Management LLC
Index: Mechanical Tolerance Stackup and Analysis Bryan R. Fischer Accuracy and precision 8-9 Advanced Dimensional Management 14, 21, 78, 118, 208, 251, 286, 329-366 Ambiguity 4, 8-14 ASME B89 48 ASME Y14.5M-1994
More informationAdvanced Dimensional Management LLC
Index for Tolerance Stackup, Tolerance Analysis and Tolerancing Manual: Plus and Minus Edition Accuracy and precision 3, 19 Ambiguity 20 ASME Y14.5M-1994 2 rule #1 2 Assembly Process 20, 28, 79-81 Assembly
More informationGeometric Tolerances & Dimensioning
Geometric Tolerances & Dimensioning MANUFACTURING PROCESSES - 2, IE-352 Ahmed M. El-Sherbeeny, PhD KING SAUD UNIVERSITY Spring - 2015 1 Content Overview Form tolerances Orientation tolerances Location
More informationTolerancing. Summary
Tolerancing Summary Summary What will we learn We will learn about tolerancing and how important this technique is to mass production. Key points If a feature s size is toleranced, it is allowed to vary
More informationTolerancing Fixed Fasteners 1
+ 856 SALT LAKE COURT SAN JOSE, CA 951 (408) 251 529 Tolerancing Fixed Fasteners 1.274- Figure 8-5 Fixed fastener The fixed fastener in Fig. 8-5 is fixed by one or more of the members being fastened. The
More informationDRAFTING MANUAL. Dimensioning and Tolerancing Rules
Page 1 1.0 General This section is in accordance with ASME Y14.5-2009 Dimensioning and Tolerancing. Note that Rule #1 is the only rule that is numbered in the 2009 standard. All of the other rules fall
More informationME 114 Engineering Drawing II
ME 114 Engineering Drawing II FITS, TOLERANCES and SURFACE QUALITY MARKS Mechanical Engineering University of Gaziantep Dr. A. Tolga Bozdana Assistant Professor Tolerancing Tolerances are used to control
More informationContinuous thick. Continuous thin. Continuous thin straight with zigzags. Dashed thin line. Chain thin. Chain thin double dash
Types of line used Continuous thick Used for visible outlines and edges. Continuous thin Used for projection, dimensioning, leader lines, hatching and short centre lines. Continuous thin straight with
More informationTerms The definitions of 16 critical terms defined by the 2009 standard 1
856 SALT LAKE COURT SAN JOSE, CA 95133 (408) 251 5329 Terms The definitions of 16 critical terms defined by the 2009 standard 1 The names and definitions of many GD&T terms have very specific meanings.
More informationhttp://blogs.solidworks.com/solidworksblog/2015/10/mbdimplementation-10-dos-and-10-donts-dont-hesitate-part-1.html Create MBE Vision Plan Identify Data Needs Assess PMI Consumption 3 DimXperts 2D Drawings
More informationEngineering drawing. Semester I/II Mechanical Engineering Department Technical University of Gdańsk. Lecture 8
Engineering drawing Semester I/II Mechanical Engineering Department Technical University of Gdańsk Lecture 8 Representing Tolerance Values Tolerance is the total amount a dimension may vary and is the
More informationDimensioning: There are a few simple best practices which can help us dimension a working drawing:
Dimensioning and Tolerancing Prepared by: Michael Hypes Cornell University Preparation: One of the most common problems for new designers is choosing dimension that do not reflect the purpose of the part.
More informationTest Answers and Exam Booklet. Geometric Tolerancing
Test Answers and Exam Booklet Geometric Tolerancing iii Contents ANSWERS TO THE GEOMETRIC TOLERANCING TEST............. 1 Part 1. Questions Part 2. Calculations SAMPLE ANSWERS TO THE GEOMETRIC TOLERANCING
More informationAlessandro Anzalone, Ph.D. Hillsborough Community College, Brandon Campus
Alessandro Anzalone, Ph.D. Hillsborough Community College, Brandon Campus Sections: 1. Definitions 2. Material Conditions 3. Modifiers 4. Radius and Controlled Radius 5. Introduction to Geometric Tolerances
More informationME 410 Mechanical Engineering Systems Laboratory
ME 410 Mechanical Engineering Systems Laboratory Laboratory Lecture 1 GEOMETRIC TOLERANCING & SOURCES OF ERRORS Geometric dimensioning and tolerancing (GD&T) is a symbolic language used on engineering
More informationGEOMETRICAL TOLERANCING
GEOMETRICAL TOLERANCING Introduction In a typical engineering design and production environment, the designer of a part rarely follows the design to the shop floor, and consequently the only means of communication
More informationGeometric Dimensioning and Tolerancing
Geometric Dimensioning and Tolerancing (Known as GDT) What is GDT Helps ensure interchangeability of parts. Use is dictated by function and relationship of the part feature. It does not take the place
More informationSYSTEM OF LIMITS, FITS, TOLERANCES AND GAUGING
UNIT 2 SYSTEM OF LIMITS, FITS, TOLERANCES AND GAUGING Introduction Definition of limits Need for limit system Tolerance Tolerance dimensions ( system of writing tolerance) Relationship between Tolerance
More informationGeometric Dimensioning and Tolerancing
Geometric dimensioning and tolerancing (GDT) is Geometric Dimensioning and Tolerancing o a method of defining parts based on how they function, using standard ASME/ANSI symbols; o a system of specifying
More informationChapter 2: Introduction to Mechanical Engineering Design
ENT 345 MECHANICAL COMPONENT DESIGN Chapter 2: Introduction to Mechanical Engineering Design IR. DR. KHAIRUL SALLEH BASARUDDIN School of Mechatronic Engineering Universiti Malaysia Perlis Email : khsalleh@unimap.edu.my
More informationActivity 7.3 Tolerances
Page 1 of 9 Activity 7.3 Tolerances Introduction The term variation describes the degree to which an object or idea differs from others of the same type or from a standard. Examples of variation are everywhere
More informationAC : CALCULATION OF TOLERANCE STACKS USING DIRECT-POSITION APPROACH IN GEOMETRIC DIMENSIONING AND TOLERANCING
AC 2009-138: CALCULATION OF TOLERANCE STACKS USING DIRECT-POSITION APPROACH IN GEOMETRIC DIMENSIONING AND TOLERANCING Cheng Lin, Old Dominion University American Society for Engineering Education, 2009
More informationExpanding Tolerance Analysis for a Robust Product Design
Expanding Tolerance Analysis for a Robust Product Design Chris Wilkes President & CEO Sigmetrix, LLC 2240 Bush Dr. McKinney, TX 75070 Dr. Andreas Vlahinos Principal Advanced Engineering Solutions, LLC
More informationSingle Part Tolerance Analysis 1
856 SALT LAKE COURT SAN JOSE, CA 95133 (408) 251 5329 Single Part Tolerance Analysis 1 2X Ø.250 ±.005 D 3.075-3.175.500 2.000.250 ±.005 E.375 C 2.050 1.950.609.859 1.375 G 1.125 B.375.750 1.125 1.500 1.875
More informationASME Y14.5M-1994 GD&T Certification Preparation Examination
ASME Y14.5M-1994 GD&T Certification Preparation Examination Directions: On the response sheet on the last page, fill in the circle of the letter which best completes the following statements. Do not write
More informationUnit4 31. UnitS 39. Unit 6 47
Preface..................... xi About the Author......... xiii Acknowledgments... xiv Unit 1 1 Bases for Interpreting Drawings........ I Visible Lines............. 3 Lettering on Drawings... 3 Sketching...
More informationDatum reference frame Position and shape tolerances Tolerance analysis
Datum reference frame Position and shape tolerances Tolerance analysis Šimon Kovář Datum reference frame Datum reference frames are typically for 3D. A typical datum reference frame is made up of three
More informationIntroduction to GD&T Session 2: Rules and Concepts of GD&T
Introduction to GD&T Session 2: Rules and Concepts of GD&T An exploration of the language known as Geometric Dimensioning and Tolerancing Instructor: John-Paul Belanger Review Benefits of GD&T The GD&T
More informationCOMMON SYMBOLS/ ISO SYMBOL ASME Y14.5M ISO FEATURE CONTROL FRAME DIAMETER/ SPHERICAL DIAMETER/ AT MAXIMUM MATERIAL CONDITION
1 82 COMMON SYMBOLS/ Shown below are the most common symbols that are used with geometric tolerancing and other related dimensional requirements on engineering drawings. Note the comparison with the ISO
More informationFits and Tolerances. Prof Ahmed Kovacevic
ME 1110 Engineering Practice 1 Engineering Drawing and Design - Lecture 7 Fits and Tolerances Prof Ahmed Kovacevic School of Engineering and Mathematical Sciences Room C130, Phone: 8780, E-Mail: a.kovacevic@city.ac.uk
More informationSingle Pass Half-Blind Dovetails
9 DR Pro - CHAPTER Single Pass Half-Blind Dovetails Why rout single pass dovetails on a variable spaced Leigh jig? Well, you just may need to reproduce or restore a late 9th or early 0th century drawer
More informationAC : CLARIFICATIONS OF RULE 2 IN TEACHING GEOMETRIC DIMENSIONING AND TOLERANCING
AC 2007-337: CLARIFICATIONS OF RULE 2 IN TEACHING GEOMETRIC DIMENSIONING AND TOLERANCING Cheng Lin, Old Dominion University Alok Verma, Old Dominion University American Society for Engineering Education,
More informationISO INTERNATIONAL STANDARD
INTERNATIONAL STANDARD ISO 286-1 Second edition 2010-04-15 Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 1: Basis of tolerances, deviations and fits Spécification
More informationA Strategy for Tolerancing a Part 1
856 SLT LKE OURT SN JOSE, 95133 (408) 251 5329 Strategy for Tolerancing a Part 1 The first step in tolerancing a feature of size, such as the hole in Figure 14-1, is to specify the size and size tolerance
More informationthe same information given in two different 1. Dimensions should NOT be duplicated, or Dimension Guidelines Incorrect ways.
Dimension Guidelines 1. Dimensions should NOT be duplicated, or the same information given in two different ways. Incorrect 1. Dimensions should NOT be duplicated, or the same information given in two
More informationContents. Notes on the use of this publication
Contents Preface xxiii Scope Notes on the use of this publication xxv xxvi 1 Layout of drawings 1 1.1 General 1 1.2 Drawing sheets 1 1.3 Title block 2 1.4 Borders and frames 2 1.5 Drawing formats 2 1.6
More informationPattern Inspection with Variable Geometric Tolerance Limits
Pattern Inspection with Variable Geometric Limits From Disregarding to Fully Applying Variable Feature Bonus and Datum Shift s in a Pattern Inspection By Paul F. Jackson Variable Limit Specifications and
More informationISO 2692 INTERNATIONAL STANDARD
INTERNATIONAL STANDARD ISO 2692 Second edition 2006-12-15 Geometrical product specifications (GPS) Geometrical tolerancing Maximum material requirement (MMR), least material requirement (LMR) and reciprocity
More informationFor installation assistance, contact SARGENT at DOORS SHOWN HERE SWING IN FOR ILLUSTRATION PURPOSES ONLY.
SARGENT Installation Instructions for LP8600 x LR8600 & 12-LP8600 x 12-LR8600 Series Low Profile Panic and Fire Exit Devices on Double Egress & Double Doors or LS8600 & 12-LS8600 Low Profile Exit Device
More informationMechanical Drawing (MDP 115)
Mechanical Drawing (MDP 115) FirstYear, Mechanical Engineering Dept., Faculty of Engineering, Fayoum University Dr. Ahmed Salah Abou Taleb Threads and Fasteners Topics Exercises 2 Threads & Fasteners:
More informationPow-R-Feed Systems Service Manual
Pow-R-Feed Systems Service Manual Important Safety Instructions Please read this manual carefully and follow its instructions. Improper use or failure to follow these instructions could result in serious
More informationBox Track INSTALLATION INSTRUCTIONS
Box Track INSTALLATION INSTRUCTIONS BOX TRACK Recommended Tools Level Tape Measure Pencil Drill with 1/8, and 1/4, Drill Bits, Phillips Bit and Slotted Bit Socket Wrench with 9/16 Socket 9/16 and 5/8 Wrench
More informationLEG CURL IP-S1315 INSTALLATION INSTRUCTIONS
LEG CURL IP-S35 INSTALLATION INSTRUCTIONS Copyright 2009. Star Trac by Unisen, Inc. All rights reserved, including those to reproduce this book or parts thereof in any form without first obtaining written
More informationResearch on aircraft components assembly tolerance design and simulation technology
3rd International Conference on Material, Mechanical and Manufacturing Engineering (IC3ME 2015) Research on aircraft components assembly tolerance design and simulation technology Wei Wang 1,a HongJun
More informationSquare Shear Beam Mounting Guidelines
Issue Date: January 2016 Please Retain for Future Reference 2016-01-11 Square Shear Beam Mounting Guidelines Subject: Square Shear Beam Recommendations Introduction: Even though Digi-Star load cells are
More informationSession 10 Dimensions, Fits and Tolerances for Assembly
Session 10 Dimensions, Fits and Tolerances for Assembly Lecture delivered by Prof. M. N. Sudhindra Kumar Professor MSRSAS-Bangalore 1 Variations in Production It is necessary that the dimensions, shape
More informationManufacturing Process:
Manufacturing Process: This document is an operations manual describing the steps taken in order to build the 12442 Haitian stove. Included is a list of materials and tools needed to complete the construction
More informationENGINEERING GRAPHICS ESSENTIALS
ENGINEERING GRAPHICS ESSENTIALS with AutoCAD 2012 Instruction Introduction to AutoCAD Engineering Graphics Principles Hand Sketching Text and Independent Learning CD Independent Learning CD: A Comprehensive
More informationAssembly of Machine Parts
Machine Drawing Assembly of Machine Parts Temporary Permanent Fastening Keying Fitting Welding Riveting Interference fit Machine drawing is the indispensable communicating medium employed in industries,
More informationAssembly Instructions
Selling Station Assembly Instructions View from above without top A B C D Rounded finished corners on A & D Square unfinished 3-sides on B & C Selling Station Components (2) 2' x 6' Side s Have a channel
More informationGeometric dimensioning & tolerancing (Part 1) KCEC 1101
Geometric dimensioning & tolerancing (Part 1) KCEC 1101 Introduction Before an object can be built, complete information about both the size and shape of the object must be available. The exact shape of
More informationVersatrac Bypass Door Units, Conventional and Top Track, 300 and 400 Series
Versatrac Bypass Door Units, Conventional and Top Track, 300 and 400 Series TM Rough opening width (finished opening width plus 9/16") Notch for top track units (used as frame header) Rough opening height
More informationHonors Drawing/Design for Production (DDP)
Honors Drawing/Design for Production (DDP) Unit 1: Design Process Time Days: 49 days Lesson 1.1: Introduction to a Design Process (11 days): 1. There are many design processes that guide professionals
More informationNABTEB Past Questions and Answers - Uploaded online PAST QUESTIONS AND ANSWERS GENERAL METAL WORK MAY/JUNE 2009
PAST QUESTIONS AND ANSWERS GENERAL METAL WORK MAY/JUNE 2009 1a. Enumerate TWO safety measures each as regards the use of the following hand tools. 1. Scriber 2. Chisel 3. File 4. Try-square 1. Scriber:
More informationB-Too Drilling and Tapping Machine Instruction and Maintenance Manual
B-Too Drilling and Tapping Machine Instruction and Maintenance Manual Thank you for your purchase of the B-Too Drilling and Tapping Machine. Please read and understand this short operation manual. Our
More informationSiding Components. Installation Guide
Siding Components Installation Guide 2016 MID-AMERICA SIDING COMPONENTS INSTALLATION GUIDE This guide will show you the products of the Mid-America Siding Components family. It provides specific installation
More informationGEOMETRIC DIMENSIONING AND TOLERANCING (GD&T) Based on ASME Y14.5M-1994 Standard
GEOMETRIC DIMENSIONING AND TOLERANCING (GD&T) Based on ASME Y14.5M-1994 Standard Duration: 4 Days Training Course Content: Day 1: Tolerancing in Engineering Drawing (9:00am-10:00am) 1.0 Geometric Dimensioning
More informationTEST SERIES TO EVALUATE THE STRUCTURAL BEHAVIOUR OF ISOBOARD OVER RAFTER SYSTEM
TEST SERIES TO EVALUATE THE STRUCTURAL BEHAVIOUR OF ISOBOARD OVER RAFTER SYSTEM J A Wium Institute of Structural Engineering 19 November 2007 ISI2007-3 TEST SERIES TO EVALUATE THE STRUCTURAL BEHAVIOUR
More informationTHE GATE COACHAll Rights Reserved 28, Jia Sarai N.Delhi ,-9998
1 P a g e 1 DESIGN AGAINST STATIC AND FLUCTUATING LOADS 2 SHAFT, KEYS AND COUPLINGS CONTENTS Introduction 6 Factor of safety 6 Stress concentration 7 Stress concentration factors 8 Reduction of stress
More informationEngineering Working Drawings Basics
Engineering Working Drawings Basics Engineering graphics is an effective way of communicating technical ideas and it is an essential tool in engineering design where most of the design process is graphically
More informationOxford Stalls Installation Instructions
Oxford Stalls Installation Instructions RAMM Horse Fencing and Stalls 13150 Airport Hwy. Swanton, OH 43558-9615 1-800-434-8456 Rev. 8/15/17 Before You Start Typical stall sizes are 10 x 10, 12 x 12 or
More informationEngineering Innovation Center Fabrication Shop Basic CAD Training
Engineering Innovation Center Fabrication Shop Basic CAD Training Introduction The Engineering Innovation Center Fabrication Shop was established for support of undergraduate student course work. Every
More informationHow to Install Custom Real Wood and Faux Wood Blinds
Before you begin your installation: READ ALL INSTALLATION INSTRUCTIONS! Make sure that you have all tools and hardware needed for installation. Check the installation surface (wall, ceiling, or window
More informationA R C H I V E
A R C H I V E 2 0 0 6 Tutorial Geometric Dimensioning And Tolerancing: A Primer For The BiTS Professional Thomas Allsup Manager of Technology Anida Technologies COPYRIGHT NOTICE The papers in this publication
More informationTOOLS REQUIRED Metal Wood Wood and Metal Screws. #16 Drill #12-24 Tap. 1/8 Drill
DEVICES COVERED IN THIS DOCUMENT: 4700S Surface Vertical Rod Device 4700SF Fire Exit Surface Vertical Rod Device TOOLS REQUIRED Metal Wood Wood and Metal Screws Sex Bolts #7 Drill ¼ -20 Tap #16 Drill #12-24
More informationRockwell 4-in-1 Sliding Door
Rockwell 4-in-1 Sliding Door ASSEMBLY INSTRUCTIONS ROCKWELL 4-IN-1 SLIDING DOOR Recommended Tools Drill with Phillips Bit Socket Wrench with 7/16 Socket Rubber Mallet Adjustable Square ROCKWELL 4-IN-1
More informationTECH SHEET PEM - REF / AXIAL THREAD CLEARANCE. SUBJECT: Method for providing adequate axial thread clearance
SUBJECT: Method for providing adequate axial thread clearance In our long history of working with customers in the application of our self-clinching nuts, PennEngineering has seen numerous instances of
More informationTolerance Analysis of 2-D and 3-D Mechanical Assemblies
Proceedings of the 5th International Seminar on Computer-Aided Tolerancing Toronto, Canada, April 27-29, 1997 A Comprehensive System for Computer-Aided Tolerance Analysis of 2-D and 3-D Mechanical Assemblies
More informationEngineering & Design: Geometric Dimensioning
Section Contents NADCA No. Format Page Frequently Asked Questions -2 s e c t i o n 1 Introduction -2 2 What is GD&T? -2 3 Why Should GD&T be Used? -2 4 Datum Reference Frame -4 4.1 Primary, Secondary,
More informationIntroduction. In engineering you are usually concerned with a number of parts or components fitting together to make an: assembly
Limits and Fits Introduction In engineering you are usually concerned with a number of parts or components fitting together to make an: assembly To assemble components together engineers must control the
More informationINSTALLATION INSTRUCTIONS
INSTALLATION INSTRUCTIONS TOOLS REQUIRED Rechargeable, variable speed drill 3/8 diameter drill bit 3 Robertson bits #0, #1 and #2 Slot screwdriver Non marring hammer with 1 head Level Caulk or sealant
More informationIntroduction. Objectives
Introduction As more and more manufacturers become immersed in the global economy, standardization plays a critical role in their success. Geometric dimensioning and tolerancing (GD&T) provides a set of
More informationConcentricity and Symmetry Controls
Concentricity and Symmetry Controls Alessandro Anzalone, Ph.D. Hillsborough Community College, Brandon Campus Concentricity and Symmetry Controls Sections: 1. Concentricity Control 2. Symmetry Control
More informationGCSE (9-1) Grade 8/9 Transforming Graphs
Name:.. Total Marks: GCSE (9-1) Grade 8/9 Transforming Graphs Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name. Answer all questions. Answer the questions
More informationAnswers to Questions and Problems
Fundamentals of Geometric Dimensioning and Tolerancing Using Critical Thinking Skills 3 rd Edition By Alex Krulikowski Answers to Questions and Problems Second Printing Product #: 1103 Price: $25.00 Copyright
More informationMANUFACTURING SIMULATION: COMPUTER AIDED TOLERANCING FOR PROCESS PLANNING
ISSN 1726-4529 Int. j. simul. model. 5 (2006) 1, 5-15 Professional paper MANUFACTURING SIMULATION: COMPUTER AIDED TOLERANCING FOR PROCESS PLANNING Bouaziz, Z. * & Masmoudi, F. ** * Unit of Mechanics, Solids,
More informationHow To Measure Your Finished Opening
3000 Series Bifold Doors How To Measure Your Finished Opening MEASURE FROM RIGHT TO LEFT 2 PLACES (WIDTH) MEASURE FROM TOP TO BOTTOM 2 PLACES (HEIGHT) Tools Required for Assembly: Tools Needed: Phillips
More information1 st Subject: Types and Conventions of Dimensions and Notes
Beginning Engineering Graphics 7 th Week Lecture Notes Instructor: Edward N. Locke Topic: Dimensions, Tolerances, Graphs and Charts 1 st Subject: Types and Conventions of Dimensions and Notes A. Definitions
More informationTechnical drawings and their interpreta1on. ME Fall 2011 Eradat SJSU Based on notes on Jim Burge and other online resources
Technical drawings and their interpreta1on ME 297-1 Fall 2011 Eradat SJSU Based on notes on Jim Burge and other online resources Technical drawings Technical drawings Orthographic projec1on Isometric layout
More informationGEOMETRIC DIMENSIONING AND TOLERANCING (GD&T)
GEOMETRIC DIMENSIONING AND TOLERANCING (GD&T) Based on ASME Y14.5M-1994 Standard Duration : 4 days Time : 9:00am 5:00pm Methodology : Instructor led Presentation, exercises and discussion Target : Individuals
More informationREVIEW ALL INSTRUCTIONS COMPLETELY BEFORE ATTEMPTING INSTALLATION
INSTALLATION INSTRUCTIONS Service Doors, Counter Service Doors & Grilles REVIEW ALL INSTRUCTIONS COMPLETELY BEFORE ATTEMPTING INSTALLATION GENERAL NOTES: Instructions are intended for qualified door mechanics
More informationIntroduction to Engineering Design
Introduction to Engineering Design Final Examination Spring 2005 Answer Key Parts A, B & C For Teacher Use ONLY Part A Scoring Conversion Chart Raw Converted Raw Converted Raw Converted Raw Converted 1
More informationA Brief Introduction to Engineering Graphics. Will Durfee & Tim Kowalewski Department of Mechanical Engineering University of Minnesota
A Brief Introduction to Engineering Graphics Will Durfee & Tim Kowalewski Department of Mechanical Engineering University of Minnesota Opening comments Engineering graphics is the method for documenting
More informationShetland Stalls Installation Instructions
Shetland Stalls Installation Instructions RAMM Horse Fencing and Stalls 13150 Airport Hwy. Swanton, OH 43558-9615 1-800-434-8456 Rev. 1/9/18 Before you start Kit can accommodate up to 12 wide stall front
More informationElementary Dimensioning
Elementary Dimensioning Standards Institutions ANSI - American National Standards Institute - creates the engineering standards for North America. ISO - International Organization for Standardization -
More informationDimension Properties. Student Web Site
Dimension Properties All sketch dimensions added to a sketch contain specific individual dimension properties. Most dimension properties are predefined by default or are specified in the Modeling Dimension
More informationC-Series & S-Series Classic Frame with Transom (Single or Pair)
1. TOOLS REQUIRED Tape measure 6' magnetic level 3' magnetic level Safety Glasses Screw gun #2 Screwdriver tip #3 Screwdriver tip Philips Head screwdriver (Used to move frame on wall using oval slots on
More informationPrecision Manufacturing
Precision Manufacturing 216 North Main Street. Freeport, NY 11520 Phone: 888-260-7466 / Fax: 516-771-6444 sales@ondrivesus.com www.ondrivesus.com Know Linear Your Shaft Shoulder Supports Screws By Dennis
More informationB Connectors. Automation. Structural Framing System Connectors & Fasteners
BContents B Connectors Gussets... 2 End Fasteners... 4 Anchor Fasteners... 5 Angle Brackets... 6 45 Support Brackets... 8 Butt Fasteners... 9 Hinged Support Brackets... 10-13 Joining Plates... 14-18 Nuts
More informationINSTRUCTIONS 360 CHAINROLL
INSTRUCTIONS 360 CHAINROLL 360 CHAINROLL REGISTRATION Please visit productregistration.360yieldcenter.com to complete the product registration for your 360 CHAINROLL so we can better support our products
More informationSOLIDWORKS 2015 and Engineering Graphics
SOLIDWORKS 2015 and Engineering Graphics An Integrated Approach Randy H. Shih SDC PUBLICATIONS Better Textbooks. Lower Prices. www.sdcpublications.com Powered by TCPDF (www.tcpdf.org) Visit the following
More informationTECH SHEET PEM - REF / TESTING CLINCH PERFORMANCE. SUBJECT: Testing clinch performance of self-clinching fasteners.
PEM - REF / TESTING CLINCH PERFORMANCE SUBJECT: Testing clinch performance of self-clinching fasteners. A self-clinching fastener s performance can be divided into two major types. The first is self-clinching
More informationGRAIN CART SLIDER CONVERSION MANUAL PATENTED SINGLE AUGER
PATENTED SINGLE AUGER GRAIN CARTS (Rev. 12/20/11) J. & M. Mfg. Co., Inc. P.O. Box 547 Ft. Recovery, OH 45846 Ph: (419) 375-2376 Fax: (419) 375-2708 www.jm-inc.com STEP - S1.0 Remove the flow control cylinder,
More informationENVELOPE REQUIREMENT VERSUS PRINCIPLE OF INDEPENDENCY
ENVELOPE REQUIREMENT VERSUS PRINCIPLE OF INDEPENDENCY Carmen SIMION, Ioan BONDREA University "Lucian Blaga" of Sibiu, Faculty of Engineering Hermann Oberth, e-mail:carmen.simion@ulbsibiu.ro, ioan.bondrea@ulbsibiu.ro
More informationInstallation Instructions
DODGE 16K Industry Standard Rail Custom Mounting Kit #2728 Gross Trailer Weight (Maximum)...16,000 lbs. Vertical Load Weight (Max. Pin Weight)...4,000 lbs. SYSTEM TOW CAPACITY Please note, in order to
More informationFACULTY OF ENGINEERING DESIGN AND PRODUCTION ENGINEERING DEPARTMENT. Credit Hour System Metrology Lab 1 MDP 240 (1) Fixed gauges. Metrology laboratory
FACULTY OF ENGINEERING DESIGN AND PRODUCTION ENGINEERING DEPARTMENT Report On: Credit Hour System Metrology Lab 1 MDP 240 (1) Fixed gauges Metrology laboratory Class No: B.N. Student Name Remark Signature
More informationUsing the RhAT II Universal
Using the RhAT II Universal To use the Original RhAT Tools, the main shaft of the machine had to be rotated to the setting position, either mechanically or electronically, while the needle bar was disengaged
More informationInstallation Instructions
TOYOTA 16K Industry Standard Rail Custom Mounting Kit #2748 Gross Trailer Weight (Maximum)...16,000 lbs. Vertical Load Weight (Max. Pin Weight)...4,000 lbs. SYSTEM TOW CAPACITY Please note, in order to
More informationTRUE TECHNICAL SERVICE MANUAL - ALL MODELS. DOORS/DRAWERS/LIDS
DOORS/DRAWERS/LIDS 55 56 NOTES DOORS/DRAWERS/LIDS Springs 97 TORSION SPRING REPLACEMENT GDM RADIUS FRONT - SWING DOOR INSTALLATION INSTRUCTIONS Tools Required (2) - 1 8" drift Punch (forged) Needle-Nose
More informationIPE 381 Chapter:04 Limit, Fits and Tolerance
IPE 381 Chapter:04 Limit, Fits and Tolerance Abdullah-Al-Mamun Lecturer, Dept. of IPE Outline Basics of Limit and Fit Interchangeable manufacturing Different types of fit Tolerance Tolerance Calculation
More information