Name: 2D Direct Component Marking Standard
Revision: 02 / Last Saved: 19-JUL-13 / Page 1 of 18
POLARIS INDUSTRIES INC.
2100 HIGHWAY 55
MEDINA, MN55340
2D Direct Component Marking Standard
ENG-STND-0004
WRITTEN BY: / Joshua Katt / DATE: / 27-DEC-12APPROVED BY: / Kevin Ness / DATE: / 27-DEC-12
Confidential © 2012 Polaris Industries Inc.
/ Number: ENG-STND-0004Name: 2D Direct Component Marking Standard
Revision: 02 / Last Saved: 19-JUL-13 / Page 1 of 18
Confidential © 2012 Polaris Industries Inc.
/ Number: ENG-STND-0004Name: 2D Direct Component Marking Standard
Revision: 02 / Last Saved: 19-JUL-13 / Page 1 of 18
REVISION HISTORY
REV / DATE / AUTHOR / APPROVER / DESCRIPTION OF CHANGES01 / 27-DEC-12 / Joshua Katt / Kevin Ness / Format update; ENG-STND-0004 supersedes ENG-SPC-08-002 rev1.
Additional info and examples.
Engine component markings expectations.
Added optional format for small 2-D codes.
02 / 11-APR-13 / Katt / Ness / Added Direct Part Marking sections and examples
TABLE OF CONTENTS
1.PURPOSE......
2.Terms & Symbols......
3.Specification......
3.1.General Marking......
3.2.Marking Validation and Verification......
3.2.1.Grading Characteristics......
3.2.1.1.Reference Decode......
3.2.1.2.Cell Contrast......
3.2.1.3.Cell Modulation......
3.2.1.4.Finder Pattern Damage......
3.2.1.5.Axial Non-Uniformity......
3.2.1.6.Grid Non-Uniformity......
3.2.1.7.Unused Error Correction......
3.2.1.8.Example Grade......
3.3.DetailedProgramming Specification......
3.3.1.Bar codes shall be created in the Data Matrix ECC200 format......
3.3.2.Data Fields – General Requirements......
3.3.2.1.Polaris Part Number......
3.3.2.2.Traceability Code......
3.3.2.3.Exceptions due to Physical size limitations......
3.3.2.4.Print Specifications for Specific Components......
3.4.Direct Part marking
3.5.Human Readable Element (Optional)
4.appendix......
4.1.Correct Data Matrix Example......
4.2.Acceptable Data Matrix Dimensions......
4.3.Example Direct Part Markings......
4.3.1.Laser Mark Tips......
4.3.2.Dot Peened Tips......
4.4.Reading DPM......
4.5.Example Data Matrix Callout......
4.6.Example Data Matrix Callout with Physical Size Limitations......
5.ReferenceS......
5.1.1.Polaris Industries ENG-SPC-08-002 rev01 2D Direct Component Marking Spec......
5.1.2.AIAG B-17 2-D Direct Parts Marking Guideline......
5.1.3.ANSI X 3.182 Information Systems - Bar Code Print Quality – Guideline......
5.1.4.ANSI/AIM BC11 Data Matrix specification......
5.1.5.ISO/IEC 16022 Data Matrix bar code symbology specification......
Confidential © 2012 Polaris Industries Inc.
/ Number: ENG-STND-0004Name: 2D Direct Component Marking Standard
Revision: 02 / Last Saved: 19-JUL-13 / Page 1 of 18
1.PURPOSE
The following Component Verification (CV) specification is written as a supplement to the supplier labeling specification. Component drawings shall specify the requirement to apply the marking defined in this specification. This standard defines uniform Quality and Technical requirements relative to part marking using "Data Matrix symbology" (2D) bar coding. Direct Part marking with such bar coding are subject to these requirements. This ENG-STND-0004 replaces ENG ENG-SPC-08-002 rev1.
2.Terms & Symbols
TERM / DEFINITIONCV-Component Verification / Polaris defined method(s) used to track, trace, and control components/assemblies.
Data Matrix / 2-D matrix barcode consisting of black and white “cells” or modules arranged in either a square or rectangular pattern. This code can be quickly read by a standard barcode reader which allows the media to be tracked. The length of the encoded data depends on the number of cells in the matrix.
Quiet Zone / The blank margin of the label around the 2D matrix (see graphic below)
ECC200 / Latest version of “Data Matrix” industry standard for 2D bar coding that uses Reed-Solomon codes for error and erasure recovery.
Global Threshold / The reflectance value that determines the boundary level above which pixels are considered white and below which they are considered black.
Module or Element / A single cell within a matrix symbology.
Finder Pattern / For a Data Matrix symbol, this is a vertical and horizontal solid line used by the scanner to detect the size and orientation of the symbol. (see graphic below)
Mark Validation / Reading, or the action of extracting data from a symbology.
Mark Verification / Measuring conformance of the mark to industry defined quality standards to ensure repeatable readability.
Direct Part Marking (DPM) / Data matrix applied directly to the component surface by means of laser etching, dot-peening, chemical etching, or other methods.
3.Specification
3.1.General Marking
Rows and columns connected with information capacity shall be in accordance with the ECC200 “Symbol Attributes”
Matrix may be square or rectangular within ECC200 requirements. Square is preferred for easier reading.
The quiet zone (margin) around the matrix shall be equal to or greater than one (1) cell size
If the marking is made on round/curved surface, the symbol coverage shall be less than 16% of the diameter (or 5% of circumference).
Angular deviation of 90 degree plane between row and column shall not exceed +/- 7 degrees.
Application of the marking can be done using laser etching, chemical etching or deposition, and printing, which is typically ink jet technology. Internal surfaces of engine components must be marked in such a manner that does not interfere with engine operation i.e. must not degrade as debris in the oil system. See section 3.4 and Appendix for additional information regarding direct part marking.
The location of the Data Matrix part marking shall be defined by the part / assembly print.
If a label is used, the adhesives used shall be a removable type pressure sensitive elastomer. The adhesive should have a moderately high initial tack, high level of ultimate adhesive, and allow for clean removal. Application of label shall be wrinkle free to assure readability
Polaris engineering print specifications for specific components can be refined and/or allow deviation to this general standard.
Polaris Part Number and Traceability code shall be encoded in 1 continuous string with no returns.
3.2.Marking Validation and Verification
Bar codes must meet ANSI standard X 3.182, Grade "C" or better
The expected readability shall not be less than 95% first time reading.
All characteristics shall be verified during the First Article Inspection (FAIR)
A Quality Assurance Plan should be in place to check any deviation of those characteristics
Marking equipment should be monitored through a maintenance plan which ensures sufficient preventive/scheduled maintenance to avoid marking outside of allowable limits.
Any non-conform marking shall be submitted to the Manufacturer of part for part disposition.
3.2.1.Grading Characteristics
Grading shall be completed on the following characteristics, on an A(4) to F(0) scale:
3.2.1.1.Reference Decode
Pass/Fail. Does the symbol have all of its features sufficiently correct to be readable.
3.2.1.2.Cell Contrast
Relative difference in intensity between light and dark features.
3.2.1.3.Cell Modulation
Measure of the uniformity of reflectance of the dark and light modules. Print growth or loss, spatial misplacement of a module relative to the grid intersection, optical characteristics of the substrate may reduce the apparent margin between reflectance of a module and the global threshold.
3.2.1.4.Finder Pattern Damage
Tests damage to finder pattern, quiet zone, and timing patterns.
3.2.1.5.Axial Non-Uniformity
Measurement of how much the finder pattern spacing differs from one axis to another.
3.2.1.6.Grid Non-Uniformity
Measures and grades irregularities in the grid intersections.
3.2.1.7.Unused Error Correction
Measures and grades the extent to which error detection was used due to regional or spot damage.
3.2.1.8.Example Grade
3.3.DetailedProgramming Specification
3.3.1.Bar codes shall be created in the Data Matrix ECC200 format
Should conform to the "Bar Code Symbology Standard for Data Matrix Bar Codes" ANSI/AIM BC11 and ISO/IEC 16022.
The maximum size shall be one (1) inch (25.4 mm), outside dimension, longest side.
3.3.2.Data Fields – General Requirements
Examples and Exceptions defined in Appendix
3.3.2.1.Polaris Part Number
15 character alpha-numeric value - Seven digit part number, followed by 8 spaces (Pad the Part Number field on the right side with blanks/spaces to fill a 15 character field)
The Polaris Part number shall not be preceded with blanks or zeros.
Left-justified
Polaris engineering print specifications for specific components can refined and/or allow deviation to this general standard.
3.3.2.2.Traceability Code
25 character alpha-numeric value - Pad with blanks or zeros on the right side to fill the 25 character field
Left-justified
Traceability code (one of the following traceability codes shall appear)
Serial number (1st choice)
Batch/lot number (2nd choice)
Date/time stamp (3rd choice)
3.3.2.3.Exceptions due to Physical size limitations
In instances where physical space limits the Data Matrix size to fewer than 40 characters, reducing the number of characters in the Traceability Code is acceptable but must be specified on the print. The 15 character Polaris Part Number requirement should remain intact; any truncation should be applied to the 25 character traceability code. See Appendix Section 4.5.
3.3.2.4.Print Specifications for Specific Components
Polaris engineering print specifications for specific components can be refined and/or allow deviation to this general standard.
3.4.Direct Part marking
Grading DPM applications requires precise control of focal distance and lighting, and as such, the typical grading process specified in the first line of Section 3.2 may not apply. If theDPM process is not capable of delivering the required C Grade specified in section 3.2, 100% read verification at the supplier before shipment must be performed. During that inspection, the 95% first time readability must be met. See Appendix for DPM examples.
3.5.Human Readable Element (Optional)
If the part print specifies a human-readable element, the following information shall appear with the barcode.
Two human-readable fields containing:
- Seven-digit Polaris part number
- Traceability code (one of the following traceability codes shall appear)
- Serial number (1st choice)
- Batch/lot number (2nd choice)
- Date/time stamp (3rd choice)
4.appendix
4.1.Correct Data Matrix Example
Scan this Data Matrix to compare data formatting to relevant 2D bar codes to ensure bar code content is correct.
1200000 YYDDDSSSSS000000000000000
4.2.Acceptable Data Matrix Dimensions
15 mil data matrices are suggested to improve readability.
4.3.Example Direct Part Markings
4.3.1.Laser Mark Tips
Do’s – flat surface, adequate size (see section 4.2), laser-etched background to provide consistent color and reflectivity for background. High contrast black characters etched using high frequency, longer dwell laser settings.
Low reflectance of the background material and high mark contrast make these excellent DPMs.
Items to avoid if possible – irregular surfaces (as-cast, shiny or rounded), smaller sizes, marked over previous codes (which have been removed using laser-etching), no etched backing, lower contrast. Note, these codes may be readable but consistency will be reduced and more expensive scanning technology will be required.
Note previous 2D bar code has been etched off. This is not a best practice, as this reduces the contrast between white and black cells and increases cell modulation (the uniformity of the reflectance of light or dark modules).
High contrast is good but highly reflective background material makes this mark difficult to read.
Excessive overlap between cells is not acceptable.
These are the same data matrix, same part, but the images are taken from different angles. On rough surfaces, the laser angle will affect readability (cell contrast and cell modulation) from different angles. Laser angles perpendicular to the surface being marked are ideal.
4.3.2.Dot Peened Tips
Items to note – Monitoring depth of stamp is critical for readability – too deep leads to inadequate spacing between individual dots (see bad example), not deep enough does not provide adequate contrast.
TThese two codes exhibit good cell spacing (no overlap between adjacent stampings) and good grid uniformity (lines are straight). Finer background surface finish will help with readability.
Excessive overlap between cells is not acceptable. Poor grid uniformity (lines are not straight).
4.4.Reading DPM
Tips/hints for reading direct part marked 2D bar codes with image-based scanning technology:
4.5.Example Data Matrix Callout
2D DIRECT COMPONENT MARKING PER ENG-STND-0004 CONTENT:
15 DIGIT POLARIS PART IDENTIFIER CONTAINING:
7 DIGIT POLARIS PART NUMBER
FOLLOWED BY 8 SPACES
25 DIGIT SERIAL NUMBER/TRACEABLITY CODE CONTAINING*:
10 DIGIT SERIAL NUMBER OR TRACEABILITY CODE FOLLOWED BY:
15 DIGIT ENGINEERING DATA
SERIAL NUMBER/TRACEABILITY CODE FORMAT: 10 DIGITS
OPTION 1 FORMAT: DATE AND TIMEFORMAT OF YYDDDXXXXX
WHERE YYDDD IS THE ORDINAL DATE AND XXXXX IS IN TIME OF
SECONDS
EXAMPLE 1200100001:
YEAR OF 2012
DAY 001= JAN1
SECOND OF DAY 00001= 12:00:01 A.M.
OPTION 2 FORMAT: SERIAL NUMBER
FORMAT OF 10 DIGIT SERIAL NUMBER
COMBINATIONS OF LETTERS AND NUMBERS ACCEPTABLE
MUST USE CHARACTERS OR SPACES TO FILL 10 FULL DIGITS
MUST BE AGREED UPON WITH POLARIS ENGINEERING AND
SPECIFIED ON PRINT
ENGINEERING DATA: 15 DIGITS
REMAINDER OF DIGITS FILLED WITH OTHER PRINT SPECIFIED
ENGINEERING DATA (I.E. BEARING GRADING,
COMPONET MATCHING), VENDOR DATA, ZEROS OR SPACES
LOCATE UPPER LEFT CORNER OF DATA MATRIX PER REFERENCE DIMENSIONS
HUMAN READABLE ELEMENT CONTENT**:
*(Traceability code shall be explicitly defined on the print, but may vary between components)
**(Human Readable element depending on requirements and labeling method.
4.6.Example Data Matrix Callout with Physical Size Limitations
5.ReferenceS
5.1.1.Polaris Industries ENG-SPC-08-002 rev01 2D Direct Component Marking Spec
5.1.2.AIAG B-17 2-D Direct Parts Marking Guideline
5.1.3.ANSI X 3.182 Information Systems - Bar Code Print Quality – Guideline
5.1.4.ANSI/AIM BC11Data Matrix specification
5.1.5.ISO/IEC 16022 Data Matrix bar code symbology specification
Confidential © 2012 Polaris Industries Inc.
/ Number: ENG-STND-0004Name: 2D Direct Component Marking Standard
Revision: 02 / Last Saved: 19-JUL-13 / Page 1 of 18
Confidential © 2012 Polaris Industries Inc.