Ted Vorburger tvtvnist.gov, Simon Frechette, Son Bui

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Dimensional Inspection Information Exchange
STEP AP219
Ted Vorburger (tvtv_at_nist.gov), Simon Frechette,
Son Bui Manufacturing Engineering Laboratory,
NIST Bill Danner Seneca-IT.com 2003
International Workshop on Aerospace Product Data
Exchange Gaithersburg MD, USA 7-10 April 2003
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• Contents
• Introduction
• Motivation for AP219, Scope, Participants
• Overview of the Information Model for Dimensional
  Inspection
• -High Level Activity Model
• -Model of Information Requirements in
  EXPRESS-G (ARM)
• Proposed New Work Item
• Harmonization with Existing Standards and
  Projects
• An Example
• Next Steps and Future Work

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Coordinate Measuring Machine with Ball Bar
Calibration Artifact
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• Motivation
• Automation of dimensional inspection should
  involve the automation and interoperability of a
  number of functions
• Computer aided design
• Inspection planning
• On-line editing/modification of inspection plans
• Collection of dimensional inspection data
• On-line analysis
• Post-process and remote analysis
• Statistical process control
• Reporting results
• Archiving and retrieval (Contd)

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Motivation (Contd) Automation of dimensional
inspection should involve the automation and
interoperability of a number of functions. In
order for these functions to interoperate in an
automated manner, a model for inspection
process parameters and output data needs to be
developed and agreed upon by the developers and
users of automated systems that create and use
inspection information.

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Scope and Functional Requirements as Stated in
the PWI This Application Protocol (AP) will
specify information requirements to manage
dimensional inspection of solid parts or
assemblies, which includes administering, planning
, and executing dimensional inspection as well
as analyzing and archiving the results.
Dimensional inspection can occur at any stage of
the life cycle of a product where checking for
conformance with a design specification is
required.
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Participants AP219 Project Team Participants
Clay Tornquist, PrizMetrik John Wootton, LK
Ltd. Rob Edgeworth, Intel Corp. Howard Harary,
NIST Larry Welsch, NIST Robert Wilhelm,
University of North Carolina, Charlotte Steve
Scigliano, Tecnomatix, Inc. Bill Ackley,
Boeing Alan Jones, Boeing Mark Vinson, Boeing Son
Bui, NIST Xiao Ping Zhao, University of North
Carolina, Charlotte DMIS National Standards
Committee Participants Curtis Brown,
Honeywell Rob Stewart, DaimlerChrysler Tom
Kramer, NIST Gordon Hogg, DaimlerChrysler Dietmar
May, Object Workshops
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T24 Manufacturing Team Participants Tom Hendrix,
Boeing Martin Hardwick, STEPTools, Inc. Len
Slovensky, Northrup Grumman Ulrich Pfeiffer,
Technical University of Darmstadt Carol Tierney,
General Dynamics King Yee, Boeing Takeshi
Kishinami, Hokkaido University Chiaki Sakamoto,
Komamatsu Engineering Co. Peter Mueller, Siemens
AG Friedrich Glantschnig, AMT Consulting David
Loffredo, STEPTools, Inc. Alan Crawford, LSC
Group Fred Proctor, NIST Automotive Industry
Action Group, Metrology Interoperability Project
Team Participants Joe Schafer, Tecnomatix,
Inc. Bob Waite, Daimler Chrysler Bob Stone, Origin
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• Contents
• Introduction
• Motivation for AP219, Scope, Participants
• Overview of the Information Model for Dimensional
  Inspection
• -High Level Activity Model
• -Model of Information Requirements in
  EXPRESS-G (ARM)
• Proposed New Work Item
• Harmonization with Existing Standards and
  Projects
• An Example
• Next Steps and Future Work

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AP219 Date 2003-2-28 DRAFT FOR COMMITTEE
USE ONLY A STEP-Based Information Model for
Dimensional Inspection Supporting Material for a
New Work Item under TC184/SC4/WG3/T24 Submitted
by Bill Danner, danner_at_seneca-it.com Seneca-IT.co
m Emerald Isle, NC, USA Theodore Vorburger,
tvtv_at_nist.gov Simon Frechette, simon.frechette_at_nis
t.gov NIST Gaithersburg, MD USA
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Dimensional Inspection Activity Model
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Organization of the Dimensional Inspection
Information Requirements Model 1. Part
Requirements Part_arm Shape_arm Geometric_model_a
rm Orientation_arm Property_parameter_arm Value_wi
th_unit_arm Shape_element_feature_arm 2.
Tolerance Requirements Dimension_tolerance_arm
Derived_shape_element_arm Geometric_tolerance_arm
Cartesian_point_and_vector_arm 3.
Manufacturing Feature Requirements Manufacturing_
feature_arm Machining_feature_arm Path_arm
Profile_arm Specification_arm Transition_f
eature_arm Replicate_feature_arm
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4. Dimensional Program ID Requirements Dimensiona
l_measurement_program_identification_arm 5.
Dimensional Measurement Feature
Requirements Dimensional_measurement_feature_arm
6. Dimensional Measurement Parameter
Requirements Dimensional_measurement_parameter_ar
m 7. Dimensional Measurement Execution Result
Requirements Dimensional_measurement_execute_resu
lt_arm Dimensional_measurement_program_run_arm
Dimensional_measurement_program_id_arm Person
_organisation_arm Date_time_arm Altogether,
the ARM contains approximately 85 EXPRESS-G
diagrams, including about 25 original diagrams.
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New Work Item Submission March 11, 2003 With
reduced scope This project will specify
information requirements for analyzing the data
and reporting the results of dimensional
inspections of solid parts or assemblies
Currently out for ballot by SC4
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• Contents
• Introduction
• Motivation for AP219, Scope, Participants
• Overview of the Information Model for Dimensional
  Inspection
• -High Level Activity Model
• -Model of Information Requirements in
  EXPRESS-G (ARM)
• Proposed New Work Item
• Harmonization with Existing Standards and
  Projects
• An Example
• Next Steps and Future Work

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Harmonization Mapping and integration

• Harmonization through mapping between
  requirements specifications

• Harmonization through integration of requirements
  specifications

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AP219 Harmonization Activities

• Dimensional Inspection
• -DMIS (Dimensional Measuring Interface Standard)
• -ISO 22093 (draft DMIS equivalent)
• -Metrology Interoperability Project of the
  Automobile Industry Action Group (Common Data
  Formatting Work Group)

• STEP
• -AP224 (Process Planning using Machining
  Features)
• -AP238 (Computer Numerical Controllers)
• -AIC 519 (Geometric Tolerances)
• -GDT modules (Geometric Dimensions and
  Tolerances)

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Part life cycle Example activity model
Current Harmonization Focus
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"Dimensional MeasuringInterface Standard,
Version 4.0, Draft ISO 22093.
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Portion of AP219-DMIS Excel Chart for Features
DMIS
AP219
FEAT/CYLINDER dmf_cylinder Label Label Inne
r/Outer flag Inner/Outer Enumeration Location/C
enter Point Center Point Direction/Axial
Direction Axis Direction Vector Diameter Diame
ter Length (Optional) Start Point End
Point Boundary Cart/Pol
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Automotive Industry Action Group (AIAG) Metrology
Interoperability Project (MIP) Common Data
Formatting Work Group

• Deliverable Create a common measurement data
  format standard including
• Develop specifications/user requirements for
  reporting measurement data. Develop an object
  model describing required information flow
  leveraging XML.
• Work with vendors to identify/create and
  encourage vendor implementation of a standard
  that meets the requirements.
• Carry out a pilot conformance and
  interoperability testing program for the
  measurement data standard. The Metrology Test Bed
  (MTB) will be utilized as a resource for test
  creation and implementation. Deliverable will be
  pilot test results.

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Example of DML Code
ltxml version"1.0" encoding"UTF-8" ?gt lt! --
DATE Thur May 31 105233 2001--gt lt! --
UTC DATE 2001-05-31T175233Z--gt lt
dimensional_inspection_results version"1.04"
id"RUN1"gt lt results_headergt lt
transform_listgt lt datum_definition_listgt lt
nominal_tolerance_listgt lt feature_listgt lt
analysis_modes_defaultgt lt analysis_dofs_defaultgt
lt feature name"basic_hole_hole_center_lower_T
PRH701" gt lt applied_tolerancesgt lt
cone_feature type"INNER"gt lt
nominal_cone_featuregt lt measured_cone_featuregt
lt/ cone_featuregt lt measured_tolerance_listgt
lt point_listgt lt/ featuregt lt/
feature_lilstgt lt/ dimensional_inspection_resultsgt

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Comparison of AP219 with DML
Part_arm (1 of 1).
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An Example Using the Sample Part for STEP-NC
Developed by Ecom (Electronic Commerce
Promotion Council of Japan)formerly JSTEP
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eDrawing of STEP NC Test Part with Tolerances
Added By Curtis Brown, Honeywell
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Example part Top view
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Example part Cross section
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Instances Counterbore_hole specification
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ARM elements Counterbore_hole diameter
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Instances Diameter nominal and tolerances
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Instances Counterbore_hole measurement
Manufacturing view
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ARM elements Dmf_circle diameter measurement
(ABS)
(ABS) Feature
Shape_ element
Dm_
feature
diameter
Dm_execution_ result_ measurement
Dm_dimension parameter
parameter
measurement_points S1?
parameter_value
Numeric_ parameter
Numeric_ Parameter
Parameter calculated value
expected_point
specification
measured_point S1?
REAL
STRING
calculated_value
x
unit_ component
value_ component
y
z
Calculated _value
Numerical _value
value
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Instances Diameter calculated value of hole 1
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Instances Diameter nominal and tolerances
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Instances Diameter nominal and tolerances
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Example part Nominals, tolerances, and calc
values
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• Next Steps and Future Work
• NWI Ballot Ongoing
• Prepare Committee Draft Fall 2003
• Harmonize Draft ARM with AIAG MIPT Dimensional
  Markup Language Team August 2003
• Develop Instance Example for STEP NC Part
  Features July 2003
• Draft NIST publication with ARM, Definitions, and
  Example September 2003
• ARM Available http//step-inspect.nist.gov
• For password, contact son.bui_at_nist.gov
• tvtv_at_nist.gov