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Plastic Injection Mold Design Advanced


Take your understanding of the inner workings of injection molds to the next level. With a focus on cost savings throughout, work on “mini-projects” at each important juncture in order to master advanced concepts.

Who Should Attend

Mold designers, tooling engineers and toolmakers, product designers, buyers, molders, and managers.

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Benefits and Learning Outcomes

  • Understand advanced parting line, shut-off development, advanced slide and lifter design
  • Learn to do advanced cavity and core inserting
  • Analyze your current issues regarding the subject matter

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Course Outline/Topics

Introduction and Overview

  • Course objectives

Molding Surface Tolerances

  • The various fits in a typical mold
  • The tolerances that should be maintained
  • How the product tolerances affect tool tolerances
  • How it affects mold cost

Mold Strength and Preformance

  • Understanding the forces acting against a mold
  • Various calculations
  • Designing for strength and longevity

Mold Alignment and Interlocking

  • Various methods of insuring mold alignment
  • Balancing of forces in a mold
  • Core shift causes and fixes
  • How it affects mold longevity

Advanced Parting Line and Shut-off Development

  • A detailed look at shut-off designs
  • Contoured and stepped parting lines
  • Common product design errors that complicate parting lines
  • Examples of complex parting lines

Advanced Slide and Lifter Design

  • When to use a lifter instead of a slide
  • Methods of slide actuation
  • A look at the forces involved
  • Proper heel block and gib design
  • The use of springs with slides
  • How and when to delay slides
  • Dual action slides
  • Designing slides for low maintenance
  • Determining slide travel
  • Alternate methods of molding undercuts
  • Collapsible and expandable cores

Advanced Cavity and Core Inserting

  • A thorough look at every aspect of inserting
  • Criteria for deciding whether or not to insert
  • Pins and other round inserts
  • Inserting slides and lifters
  • Laminated and gate inserts
  • The economics of inserting
  • Assembling of inserts
  • Quick change inserts

3D Modeling and Mold Design

  • Improving translation between CAD systems
  • General problems with CAD exchange
  • Tips and tricks
  • Translation options

Mold Monitoring

  • Pressure transducers
  • Thermocouples
  • Proximity and limit switches
  • Vision systems

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This program can be applied toward the:

Completion of Plastic Injection Mold Design Basics or a solid knowledge of the subject matter.
Thu.-Fri., Apr. 23-24
Location: UWM School of Continuing Education (Click link for directions)
Instructor: John Vosmeier
CEUs: 1.4/PDHs: 14
Program No. 4830-7846
Registration Deadline: Thu., Apr. 23
Register Now
For more information, contact:
Murali Vedula,, 414-227-3121
Marcia Gabriel,, 414-227-3378


Spring 2015 Plastics Engineering Brochure
Plastics Brochure
Or download the pdf

Plastics Technology Certificate
Fall 2014
Congratulations to

Shayna Begay
Bruce Comer
Tejas Dhyani
Brian Ecklund

for receiving UWM's Plastics Technology Certificate.