Dimensional Engineering News

Dimensional Engineering Newsletter is a 2-paged monthly newsletter published by Dimensional Control Systems (DCS), USA. Requested newsletters will be sent over to your email within 2 business days.

Issue #Month
Year
Topic
#164December2016
What to Measure
#163November2016
Compliant Move Toolbox
#162October2016
Mechanical Move Toolbox
#161September2016
Iteration Move
#160August2016
Most Used Moves

What is Dimensional Management?

Date: 2003-05-01

Keywords: Why should we use Statistical Analysis Tools in Dimensional Engineering?, When Should a Feature-Point be used?, What is the Most Important Factor making 3DCS a Unique Tool for Tolerance Simulation?, Why Should a Dimensional Engineer use GDM-3D?, When Should the Truncations in a Tolerance be used?, DM

What is the role of Dimensional Engineering in Advanced Product Quality Planning (APQP)?

Date: 2003-06-01

Keywords: Is Dimensional Engineering important in Design for Six Sigma (DFSS)?, What is DCS-DFC?, How can GDM-WEB help in Dimensional Management?, 3DCS can simulate Weld Distortion.‘Batch-Run’ Capability is available in 3DCS.

When is the ±3-sigma Description Not Good Enough in Describing Statistics of Data?

Date: 2003-07-01

Keywords: What are the Limitations of Linear Methods for 3D Variation Models?, What are the Typical Steps in 3DCS Variation Modeling?, What are the Typical Steps in GDM-3D Report Generation?, What Types of Charts does GDM- 3D Provide?

What is the Objective in Dimensional Management?

Date: 2003-08-01

Keywords: Terms Used in Dimensional Management, What Kinds of Tools does DCS Provide for Dimensional Management?, What is a Dimensional Control Procedure?

What is Six Sigma?

Date: 2003-09-01

Keywords: How does Six Sigma work?, Terms used in Six Sigma, How can DCS software products support Six Sigma Projects?

What is Statistics?

Date: 2003-10-01

Keywords: Often-Used Statistics

What Knowledge Should Dimensional Engineers Have?

Date: 2003-11-01

Keywords: Dimensional Variation Analysis Process Model, 14 Fundamental Rules in Applying GD&T standard - ASME Y14.5M-1994, Geometric Dimensioning and Tolerancing

What is Statistical Process Control?

Date: 2003-12-01

Keywords: Where is Process Variation?, Methods to Correct Variation, Achieving Control and Capability, Capability Study, SPC Analysis Tools, The Process Improvement Cycle

Tolerance Analysis, Dimensional Variation Analysis

Date: 2004-01-01

Keywords: What Is Vectorial Dimensioning and Tolerancing?, How is discrete-time State- Space method used in Dimensional Variation Analysis?, What is the Stream-Of-Variation Analysis?, DVA

What is Dimensional Variation Modeling?

Date: 2004-02-01

Keywords: When is 3-D Dimensional Variation Modeling required?, Three Phases in Building 3DCS Variation Models, Why are Constraints not enough for Dimensional Variation Analysis?

Dimensional Engineers Must Be Familiar with 1DCS

Date: 2004-03-01

Keywords: What Can DCS-DFC Provide for a Dimensional Engineer?, 3DCS Tip: When should an Arc Tolerance be used?

DCS Provides Complete Dimensional Engineering Solutions

Date: 2004-04-01

Keywords: When is GeoFactor Better Than HLM Analysis?, High Low Median

DCS Provides a Complete Tool in Dimensional Data Management

Date: 2004-05-01

Keywords: Current Technology, New Technology - Graphical Data Management, Benefits of GDM System

Product Vs Process-oriented Variation Modeling Methods

Date: 2004-06-01

Keywords: 3DCS Supports Kinematic Variation Modeling, High-Low-Median Sensitivity Analysis and Synthesis

3DCS Simulation System

Date: 2004-07-01

Keywords: 3DCS Capability Summary, When is 3DCS Used?

3DCS and DFSS – Parametric Variation Modeling

Date: 2004-08-01

Keywords: How to Calculate Zst from Out-of-Spec, How to Calculate Cpk from Out-of-Spec

3DCS Enhances Robust Design

Date: 2004-09-01

Keywords: How to Simulate Temperature Induced Variation in 3DCS?, How to Implement Design of Experiments with 3DCS?, DOE

Dimensional Variation Simulation Theory

Date: 2004-10-01

Keywords: What is the 3-2-1 Assembly Method?

How to Sum Tolerances Together?

Date: 2004-11-01

Keywords: How to Linearize Nonlinear Dimensional Variation Models?

What is Dimensional Variation?

Date: 2004-12-01

Keywords: Where Does Dimensional Variation Come From?, Why Geometric Dimension & Tolerance (GD&T)?, How to Specify Tolerance?

How to Select the Best Fixture using 3DCS

Date: 2005-01-01

Keywords: Effective Use of Measurement Data in DCS Solutions, What is Principle Component Analysis (PCA)?

What Can PCA Bring to Variation Analysis?

Date: 2005-02-01

Keywords: What Can 1DCS Tell in Variation Analysis?, Principle Component Analysis

How to Calculate Door Closing Effort in 3DCS

Date: 2005-03-01

Keywords: How to Use DOE to Evaluate Point Locations, How to Use a Dynamic Mid-Point at the Assembly Level, Design of Experiment

Dimensional Variation Analysis By Simulation

Date: 2005-04-01

Keywords: How to Simulate ‘Floating’?, How to Simulate Mean Shift

Simulated Distribution Types in 3DCS - Part I

Date: 2005-05-01

Keywords: Build Variation Models With Components and Measurement Data

Simulated Distribution Types in 3DCS - Part 2

Date: 2005-06-01

Keywords:

Simulated Distribution Types in 3DCS - Part 3

Date: 2005-07-01

Keywords:

How to Implement the Dimensional Control Procedure by using 3DCS

Date: 2005-08-01

Keywords: Teaming Up to Implement the Dimensional Control Procedure, Dimensional Control Terminologies, Dimensional Control Technique: Apply Design Clearances

Trapezoidal Distribution - Simulated Distribution in 3DCS

Date: 2005-09-01

Keywords: Optimization in Dimensional Engineering

DCS Optimization Tools – Linear Optimizer

Date: 2005-10-01

Keywords: Linear Optimization – Minimum Cost, Linear Optimization – Maximum Quality

DCS Optimization Tools – Nonlinear Optimizer

Date: 2005-11-01

Keywords: DOE-based method, Algorithm-Based Method, Design of Experiment

Fixture Locator Optimization with 3DCS

Date: 2005-12-01

Keywords: Prepare a Variation Model for DOE, Generate Design Table from DcsDoeForm and DcsRunDoe, Perform regression analysis, Minimize Sensitivity Indices, Design of Experiment

How to model elastic deformation in a variation model

Date: 2006-01-01

Keywords: Equation-based Tolerancing Method, Deformation-specific Deviating Method, Geometric Bending Method, Stiffness Matrix Method, Influence Coefficient Matrix Method

Easy Modeling Steps with 3DCS®

Date: 2006-02-01

Keywords: How DRF affects a variation Model

3DCS Reduces Production Costs

Date: 2006-03-01

Keywords: Achieving Reductions in Production Costs

GDMWEB® – An Efficient Data Lifecycle Tool

Date: 2006-04-01

Keywords: Manufacturing Data Lifecycle, GDMWEB® – A Quality Improvement Tool

Why High-Low-Mean and GeoFactor Provide Different Results

Date: 2006-05-01

Keywords: User-DLL Categories in 3DCS

3DCS Analyzes Process Variation

Date: 2006-06-01

Keywords: Why Process Variation Analysis is Important, Modeling Activity Survey for 3DCS

An Example For DCS_PCA

Date: 2006-07-01

Keywords: Principle Component Analysis

Feature Calculation Methods in 3DCS

Date: 2006-08-01

Keywords: Least-Square Plane, Least-Square Axis

Feature-based and Point-based Variation Modeling

Date: 2006-09-01

Keywords: Where are the Applications for Feature-based Variation Modeling, What are the typical modeling practices?

How Feature-Move Works

Date: 2006-10-01

Keywords: How Feature-Move Functionality is used

Building a Variation Model Starts with Objectives

Date: 2006-11-01

Keywords:

Modeling of Complex Surfaces in 3DCS®

Date: 2006-12-01

Keywords:

What DCS-DFC® Provide

Date: 2007-01-01

Keywords: Creation of a DFC can be summarized in four steps, A DCS-DFC® model may be created in six steps, After a DFC model is created in DCSDFC® the following analyses can be performed

Data Correlation Analysis

Date: 2007-02-01

Keywords: GDM-PCA Study, Visual Shift Study, Assembly Variation Study, Correlation Study Benefits, Principle Component Analysis

What does a Histogram tell us?

Date: 2007-03-01

Keywords: How a Histogram is Calculated, Which Parameters are Used for Curve Fitting in 3DCS®?

Design Intent Validation

Date: 2007-04-01

Keywords:

Simulation Methodology in 3DCS®

Date: 2007-05-01

Keywords:

Establishing Dimensional Objectives

Date: 2007-06-01

Keywords:

Distribution Tails for True-Distance Measurements

Date: 2007-07-01

Keywords:

What is Bonus Tolerance

Date: 2007-08-01

Keywords: Bonus Tolerance cuts Cost, How Bonus Tolerance Is Simulated

Theory for HLM Analysis

Date: 2007-09-01

Keywords: Linear Variation Model, Quadratic Variation Model, High Low Median

Validating a Design with Interchangeability

Date: 2007-10-01

Keywords:

DPMO Calculation

Date: 2007-11-01

Keywords: Estimated DPMO for Non-Normal Distribution, Zst Calculation, Defects per million opportunities

Dimensional Engineering Role in Furniture Production

Date: 2007-12-01

Keywords: What 3DCS® Provides for Furniture Producers

3DCS FEA Compliant Modeler

Date: 2008-01-01

Keywords: 3DCS FEA Compliant Modeler® Applications, FEA-CM

Out Percentages in 3DCS

Date: 2008-02-01

Keywords: L-Out%: Lower Out Percentage, H-Out%: Higher Out Percentage, Tot-Out%: Total Out Percentage, RngL-Out%: Range Lower Out Percentage, RngH-Out%: Range Higher Out Percentage, TotRng-Out%: Total Range Out Percentage, Est.L-Out%: Estimated Lower Out Percentage, Est.H-Out%: Estimated Higher Out Percentage, Est.Tot-Out%: Estimated Total Out Percentage

Fabrication Deformation

Date: 2008-03-01

Keywords: How to Simulate Fabrication Deformation

DefoMorphing

Date: 2008-04-01

Keywords: Calculate Part Deformation, Validate design intent for single part, Validate part design using plant - measured variation data, Spec Study

Variation Analysis on size Tolerance

Date: 2008-05-01

Keywords: Size Deviation, Bonus Deviation, Floating Deviation

Representing Tolerance Statistically

Date: 2008-06-01

Keywords: 6STD

Temperature-induced Variation

Date: 2008-07-01

Keywords: Simulation Setup, DOE Setup, DOE Factor Level Setup, Temperature Effect Report, Design of Experiment

Fixed Fastener Simulation

Date: 2008-08-01

Keywords: Floating Fastener Simulation

Dimensional Objectives

Date: 2008-09-01

Keywords: Seeing and Feeling Dimensional Objectives, Spec Study Applications, Specify Dimensional Objectives, Analyze Prototypes Virtually

What is DcsStiffGen

Date: 2008-10-01

Keywords: DcsStiffGen Applications, Initial compliant modeling, Accurate compliant modeling, FEA-CM

Spec Study by Influence Sphere Method

Date: 2008-11-01

Keywords:

A Case of Two Axes in Feature Moves

Date: 2008-12-01

Keywords: MTM

Dimensional Variation Analysis

Date: 2009-01-01

Keywords: Application Cases for DVA, Mass Production Case, Product Evolvement, Supplier-Producer Case

Cost coefficients in 3DCS AAO

Date: 2009-02-01

Keywords: Cost Coefficient Calculation, A Numerical Calculation Example

What FEA-Weld Simulates

Date: 2009-03-01

Keywords: Simulate Weld-To-Self, FEA-CM

Why Simulating Assembly Process Is Required

Date: 2009-04-01

Keywords: Process Variation

Case Application: Bending Plane Routine

Date: 2009-05-01

Keywords: Bending Plane Applied On Flexible Surfaces

Monte Carlo Simulation and Variation Analysis

Date: 2009-06-01

Keywords: Why 3DCS® is the best tool for dimensional variation analysis

GeoFactor and Variation Analysis

Date: 2009-07-01

Keywords: Geometric Factors

Trajectory Variation Analysis

Date: 2009-08-01

Keywords: Cars, Car Trunks/Hoods, Garage Doors

Worst-Case Variation Analysis

Date: 2009-09-01

Keywords: WC Variation for Linear Model, Why 3D WC Variation Analysis

Univariate Linearity Percentage

Date: 2009-10-01

Keywords: Calculate Univariate Linearity Percentage

Engine Compression Ratio Variation Study

Date: 2009-11-01

Keywords:

Simulating Assembly Operations

Date: 2009-12-01

Keywords: Assembly Sequence, Component Locating Method

A Suspension System Variation Study

Date: 2010-01-01

Keywords:

Variation Curve Study

Date: 2010-02-01

Keywords: Suspension System

Nonlinear Measurement – Virtual Clearance

Date: 2010-03-01

Keywords:

Action Sequence in 3DCS

Date: 2010-04-01

Keywords:

Nonlinear Property in Pattern Move

Date: 2010-05-01

Keywords:

Process Capability and Tolerance Range

Date: 2010-06-01

Keywords: Sum of Variation with Different Cp Values, Pp

Over-constrained Assembly Modeling

Date: 2010-07-01

Keywords: Deviation-morphing

Over-constrained Panel Assembly

Date: 2010-08-01

Keywords: Deviation-morphing

Circle Interference – A Nonlinear Measurement

Date: 2010-09-01

Keywords: Nonlinear Relationship in Circle Interference, Zero HLM Contribution, High Low Median

Compliant Modeling

Date: 2010-10-01

Keywords: Finite Element Analysis Basics, Equations in FEA-CM

How Many Simulation Runs Are Required

Date: 2010-11-01

Keywords: Statistics

A Convergence Study in Monte-Carlo Simulation

Date: 2010-12-01

Keywords:

Modeling in Phases

Date: 2011-01-01

Keywords: Individual Subassemblies, Body-Frame Subassembly, Body-Complete Assembly

Model Sensitivity Analysis

Date: 2011-02-01

Keywords: HLM, High-Low-Median

Model Sensitivity Calculation

Date: 2011-03-01

Keywords: Sigma-based Model Sensitivity, Pp-based Model Sensitivity, Ppk-based Model Sensitivity, Out%-based Model Sensitivity, HLM%-based Model Sensitivity, High Low Median

Spec Study in Product Design

Date: 2011-04-01

Keywords: Gap, Flushness, Visualize

Process Capability and Tolerance Offset

Date: 2011-05-01

Keywords: Pp, Cp

Build a Variation Model

Date: 2011-06-01

Keywords: Create Measurements, Create Assembly Methods, Create Variation Inputs

3DCS Perceived Quality in Functional Design

Date: 2011-07-01

Keywords:

Tolerance Parameters from Cp and Cpk – Part 1

Date: 2011-08-01

Keywords: Key Product Characteristic (KPC), Tolerances related with KPC, Tolerances as defaults

Tolerance Parameters from Cp and Cpk – Part 2

Date: 2011-09-01

Keywords: Tolerances designated as Key Characteristics, Tolerances designated as Common Care, Tolerances from Actual Samples, Only Cp Input, Cp and Cpk with Allowed Offset

Dimensional Management ‘Closed-Loop’

Date: 2011-10-01

Keywords: How to Use Measure Generator in Dimensional Variation Analysis, Lifecycle

Why DVA is Needed in Low Volume Production

Date: 2011-11-01

Keywords: Effective Lifecycle Evolution Management, Dimensional Variation Analysis

Assembly Locators in Dimensional Variation

Date: 2011-12-01

Keywords:

Variation Analysis Dataflow Part 1

Date: 2012-01-01

Keywords: Modeling, Identify the analysis goals, Input geometric data, Create goal measurements, Input component tolerances, Input assembly process information, MTM

Variation Analysis Dataflow Part 2

Date: 2012-02-01

Keywords: Simulation, Tolerance Truncation, Tolerance Distribution, Tolerance Safety Factor, Measurement Safety Factor, Analysis - Monte Carlo Simulation and HLM Sensitivity, Analysis - Geometrical Factor, Optimization, Design-of-Experiments, High Low Median, DOE

Variation Result Analysis

Date: 2012-03-01

Keywords: Failure Number Analysis, Mean Value Verification, Out-Spec% Confirmation, Measurement Variation Range, HLM Contributors for KPCs, Geometric Factors, KC Sensitivity, Worst-Case Results, Visual Checking, High Low Median, Key Product Characteristic

Why Statistical Variation Analysis

Date: 2012-04-01

Keywords: Statistical Accumulation - RSS, Arithmetic Stacking – “Worst-Case”, Manufacturing Cost, Piece Cost, 3D Tool Required

Assembly Constraint Modeling

Date: 2012-05-01

Keywords: Coincident Constraint, Contact Constraint, Offset Constraint, Angle Constraint, Constraint Sequence Impact, Over-Constraint VS Proper Constraint

Kinematic Joint Modeling

Date: 2012-06-01

Keywords: Revolute Joint, Prismatic Joint, Cylindrical Joint, Spherical Joint, Planar Joint, Motion Control

Variation Analysis in Product Life Cycle – Part 1

Date: 2012-07-01

Keywords: Directly Use CMM-DEV File, Use CMM-DEV Statistics, Use DCS Process DB

Variation Analysis in Product Life Cycle – Part 2

Date: 2012-08-01

Keywords: If a CMM-DEV file is available, If Generic CMM Data is available

Component Positions in Variation Analysis

Date: 2012-09-01

Keywords: Part Position, Nominal Position, Separate Position, Deviated Position

3DCS as a Design Tool

Date: 2012-10-01

Keywords: 3DCS® in the Design Stage

3DCS in Datum Design

Date: 2012-11-01

Keywords:

3DCS in Quality Systems

Date: 2012-12-01

Keywords: Assure, Reliability, Appearance, Budget, Function, Directives, Production, Analyze

Dimensional Engineering – Datums are Important

Date: 2013-01-01

Keywords: Datums in Assembly, Why Datums are Important, Datums affect variation, Datums affect measurements

Datum Design Principles

Date: 2013-02-01

Keywords: Datum Feature Selection, Datum Reference Frame, DRF Considerations

Using Datum Targets

Date: 2013-03-01

Keywords: Datum Target Types

3-2-1 Locating Scheme

Date: 2013-04-01

Keywords: Points, Locating Scheme, Stepped

Design for Dimensional Engineering

Date: 2013-05-01

Keywords: Dimensional Engineering Principles, Spread

Build Variation Models – Top-Down Modeling

Date: 2013-06-01

Keywords:

Build Variation Models – Bottom-Up Modeling

Date: 2013-07-01

Keywords:

Build Variation Models – Hybrid Modeling

Date: 2013-08-01

Keywords:

Model Configuration – Using MTM Files

Date: 2013-09-01

Keywords: Configure Active MTMs, Configure Associated Features, Configure Associated Parameters, Moves, Tolerances, Measurements

Edit Nominal Parameters – Modeling Tips

Date: 2013-10-01

Keywords: Experimenting with Design Location, Experimenting with Locating Size

Define Objectives – DM Step 2

Date: 2014-03-01

Keywords: Dimensional Management, meets the customer’s expectations

Assembly Strategies – DM Step 3

Date: 2014-04-01

Keywords: Dimensional Management, Assembly Strategy

Implement Strategy – DM Step 4

Date: 2014-05-01

Keywords: Dimensional Management, Assembly Strategy, Locating Schemes

Optimize Component Spec – DM Step 5

Date: 2014-06-01

Keywords: Dimensional Management, Two Rules in Optimization, Outputs from Optimization, Tools for Optimization

Analyze Prototype – DM Step 6

Date: 2014-07-01

Keywords: Dimensional Management, Analyze Prototype, Design Conformance, Tools/Fixtures Conformance, Process Conformance

Analyze Production – DM Step 7

Date: 2014-08-01

Keywords: Dimensional Management, Tooling and Gaging, Manual Adjustment and Automation, Part Reworks and Scrap Rate

Support Production – DM Step 8

Date: 2014-09-01

Keywords: Dimensional Management, Root Cause Analysis, Product Engineering Review, Continuous Improvement

Dimensional Management with Metrology

Date: 2014-10-01

Keywords: DM, Maximize Product Performance, Optimize Product Combinations, Analyze Metrological Variation

DM with Metrology – Maximize Product Performance

Date: 2014-11-01

Keywords: Dimensional Management

DM with Metrology – Optimize Product Combinations

Date: 2014-12-01

Keywords: Dimensional Management, optimal

DM with Metrology – Analyze Metrological Variation

Date: 2015-01-01

Keywords: Dimensional Management, Analyze Variation by Samples, Analyze Variation by PCDB, Build Variation Analysis Model, Process Capability Database

Failed Assemblies in Variation Models

Date: 2015-02-01

Keywords: Assemble-ability, Failed Assembly, Investigating a Failed Assembly, Assemblability

Why Do Tolerancing?

Date: 2015-03-01

Keywords: Interchangeability, Manufacturing Quality Control

Limit Tolerances – Tolerancing Part 1

Date: 2015-04-01

Keywords: Limits of Size, Angular Limits, Rectangular Tolerance Zone, Drawbacks with Limit Tolerance, Cylindrical Tolerance Zone, Material Modifier, Datum Precedence, MTM

Geometric Tolerances – Tolerancing Part 2

Date: 2015-05-01

Keywords: GD&T, Symbols, Form, Orientation, Location, Profile, and Runout, Geometric Dimensioning and Tolerancing, MTM

Geometric Tolerance Example

Date: 2015-06-01

Keywords: GD&T, Symbols, Form, Orientation, Location, Profile, and Runout, Weld Hole, Weld Nut, Geometric Dimensioning and Tolerancing, MTM

Locator Sensitivity Analyzer

Date: 2015-07-01

Keywords: AAO, Optimize

Weibull Distribution

Date: 2015-08-01

Keywords: Exponential Distribution, Rayleigh Distribution, Weibull Failure Rate

Pearson Distribution

Date: 2015-09-01

Keywords:

Simulating Tolerances

Date: 2015-10-01

Keywords: DVA, Dimensional Variation Analysis, MTM

Tolerancing & Simulating

Date: 2015-11-01

Keywords: MTM

Tolerance Input – Distribution Type

Date: 2015-12-01

Keywords: Bimode, Skew, Normal, Constant, MTM

Simulating Assembly Operations

Date: 2016-01-01

Keywords: Hole-Pin Floating, Conditional Logic, Bending, Compliant Deformation

AutoBend Routine – An Assembly Operation

Date: 2016-02-01

Keywords: over-constrained

AutoBend – Planar Bending Operation

Date: 2016-03-01

Keywords: over-constrained

Floating Option in Assembly Operation

Date: 2016-04-01

Keywords: 2-way, 4-way

Conditional Logic Option in Assembly Operations

Date: 2016-05-01

Keywords:

Conditional Floating in Assembly Operations

Date: 2016-06-01

Keywords: Iterative

Minimization by Floating

Date: 2016-07-01

Keywords: Conditional Float

Most Used Moves

Date: 2016-08-01

Keywords: 3-2-1 Move, Three-Point Move, Mechanical Move, Joint, Constraint, Compliant Move, Clamp, Weld, Step Plane, Six Plane, MTM

Iteration Move

Date: 2016-09-01

Keywords:

Mechanical Move Toolbox

Date: 2016-10-01

Keywords: Kinematic, Joint, Constraint, DOF, Degree of Freedom

Compliant Move Toolbox

Date: 2016-11-01

Keywords: Springback, FEA, Stiffness, Clamp, Gravity, Force, Torque, Thermal, Join, Weld, FEA-CM

What to Measure

Date: 2016-12-01

Keywords: Dimensional Objectives, KPC, KCC, Key Product Characteristic, Key Control Characteristics

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