Advanced Blueprint Reading: Geometric Dimensioning and Tolerancing

Basic Dimensional Metrology

Registration Information
Basic Dimensional Metrology – INDT 1145
Call for information at (815) 280-1418

Seminar Location: Seminar is held at Joliet Junior College’s Main Campus, Room C-1006, 1215 Houbolt Road, Joliet, Illinois.

Seminar Description: Metrology is the science of measurement. Everything that a manufacturer can do to improve the quality of both product and process depends upon accurate measurement. The seminar instructor teaches the correct use and care of measuring equipment commonly used in precision machine tool metalworking occupations and by quality assurance personnel and operators in any manufacturing facility. English units of measure will be used, although use of the metric system by participants who use metric measurements on the job can be accommodated.

You will learn

1. What dimensional metrology is.
2. Reasons and uses for measurement.
3. The definitions of precision, accuracy and reliability.
4. How to read a 6” steel rule.
5. How to read, care for, use and calibrate vernier/dial measuring tools.
6. How to read, care for, use and calibrate micrometers (outside, inside).
7. How to read, care for, use and calibrate dial indicators.

Who will benefit

• Operators responsible for sampling/charting
• Quality assurance personnel
• First-line supervisors and managers
• Machine tool metalworkers

Topics

1. Reasons and Uses of Measurement
2. The Language of Measurement
   Reference points and measured points
   Precision, accuracy, and reliability
   Accuracy versus precision
3. Systems of Measurement
4. Measurement With Graduated Scales
   Reading the 6” steel rule
   The role of error
   Hands-on practice with the steel rule
5. Micrometer Instruments
   Outside Micrometers
   Micrometer reading
   Accuracy, precision and discrimination
   Micrometers using vernier scales
   Metric micrometers
   Digital micrometers
   Micrometer construction
   What a micrometer measures
   Using the Micrometer
   Controlled force feature
   Error avoidance
   Hands-on practice - measuring flat parts
   Hands-on practice - measuring cylindrical parts
   The Inside Micrometer
   Hands-on practice with the inside micrometer
   Care of Micrometers
6. Vernier Calipers
   Reading Vernier Calipers
   Measurement with vernier calipers
   Accuracy checks for vernier calipers
   Hands-on practice – vernier calipers
   Reading Dial Calipers
   How to read dial calipers
   Hands-on practice – dial calipers
7. Measuring With Dial Indicators
   Balanced indicator dials
   Continuous indicator dials
   Hands-on practice – dial indicators

Your instructors
Joseph Gladkowski is the senior faculty person for the Machine Tool Technology Program at Joliet Junior College and has taught college classes since 1995. He has 26 years of hands-on experience as a tool and die maker, with a concentrated interest in die making and mold making. Joe has an A.A. from Joliet Junior College and a B.A. from Lewis University.

Mathew Higgins is a Joliet Junior College faculty member who retired from Caterpillar after 31 years of experience. He was a machinist for twenty of those years, worked as a manufacturing engineer designing fixtures and tools, as a tool analyst, and as a senior numerical control programmer. He knows the real-world demands made on operators and has years of experience training operators. Matt served on CAT recertification teams and customer certification teams. Prior to joining the JJC faculty, he worked for MTH Tool (Plano), a manufacturer of turbine pumps, designing flow layouts. Matt received an A.A.S. degree in Supervision.

You will receive the 640 page text, Fundamentals of Dimensional Metrology ($69.95 list price).

IN-HOUSE TRAINING AVAILABLE
For additional information about in-house training, please call Amy Murphy at (815) 280-1418 or email

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