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October 1, 1999

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Two CD-ROM Training Courses: Basics Of IM; Geometric Dimensioning AndTolerancing

Two CD-ROM Training Courses: Basics Of IM; Geometric Dimensioning And Tolerancing

A. Routsis Associates has introduced two new interactive CD-ROM training series: 'Understanding Plastics,' which is priced at $997, and 'Geometric Dimensioning & Tolerancing,' which is priced at $4997.

Understanding Plastics reviews procedures for increasing the profitability of an injection molding operation while maintaining
part quality. The program explains how and why plastics are different from other materials and emphasizes materials handling, explains regrind, the effect of moisture on molded part properties and processing. Different types of plastics and processing considerations are also reviewed.

The primary audience is production and inspection personnel, supervisors, group leaders, set-up person-nel and others who wish to understand the basics. Topics include:

  • * The definition of plastics

  • * Polymer classification

  • * Material properties that are affected by processing

  • * Proper materials handling techniques

  • * Processing characteristics of virgin and regrind material

Geometric dimensioning and tolerancing (GD&T) is the subject of a four-disk series that is designed to build the ability to read and interpret GD&T symbols. It also provides information about the function and relationship of part features.

The audience for this program is production and inspection personnel, supervisors, group leaders and set-up personnel. The courses are as follows:

* Program 1 ­ Basic Principles provides the definitions and benefits of GD&T and basic terminology (tolerance, geometric characteristics, geometric tolerance, datum feature and target, datum reference frame, basic dimension, maximum material condition, least material condition and clearance, interference and transition fits).

* Program 2 ­ Interpreting GD&T Symbols provides the format of feature control frame diameter symbol coordinates versus position system tolerance zones and the effect of material condition on the size of the geometric tolerance regardless of feature size principle.

* Program 3 ­ Form and Orientation Tolerances provides the definition and interpretation of form tolerances (flatness, straightness, circulatory and cylindricity), and orientation tolerances (perpendicularity, angularity and parallelism), as well as the application of the material condition principle and inspection procedures.

* Program 4 ­ Profile, Runout and Location Tolerances provides the definition and interpretation of profile tolerances (profile of a surface and profile of a line) and runout tolerances (position, concentricity and symmetry), as well as the application of maximum material condition principle and inspection procedures. 

A. Routsis Associates
Dracut, MA

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