Plastic Part Design for Injection Molding
To register, fill out the registration form and fax it to (978) 934-2028. For more information about registering, click here.
4 DAY LECTURE/WORKSHOP
OFFERED TWICE:
June 10-13, 2013 (CRS# 00.725-011)
August 5-8, 2013 (CRS# 00.725-021)
TUITION: $1345
OVERVIEW
This seminar is offered to engineers and designers involved in the
design of injection molded plastic parts. The course provides a
fundamental overview of the many factors associated with plastic parts
that
will be produced using the injection molding process. In order to design
a high quality injection molded part, the designer must select an
appropriate plastic material formulation, develop a functional design,
and work within the manufacturing limitations associated with the mold
design and injection molding process. This course will cover the
fundamentals of plastic materials behavior and selection, engineering
design, manufacturing (moldability) considerations, prototyping, stress
analysis and assembly methods. The timely subject of design for enhanced
recyclability will also be discussed, as will design developments
related to new injection molding technologies.
CONTENT
Introduction
- Plastic material fundamentals and review of the injection molding process.
Fundamentals of Mold Design
- Mold types; gates and runners; ejection considerations
Manufacturing-Related Design Considerations for Molded Plastic Parts
- Mold filling considerations, shrinkage and warpage of molded parts, mold cooling considerations
Design Guidelines
- Uniform wall thickness; factors affecting wall thickness; parting lines; tolerances
Mechanical Behavior of Plastic Material
- Short term stress-strain behavior, creep and stress relaxation, structural design of molded plastic parts, fatigue performance, impact performance, plastic materials databases
Design for Enhanced Recyclability
- Design-related issues that enhance or hinder the recyclability of thermoplastic products
Case Study for a New Product
- Steps involved in the development of a new part (including materials selection)
Prototype Part Production
- Machine prototypes; rapid prototyping techniques; cast prototypes; molded prototypes, and rapid tooling techniques
Assembly of Plastic Parts
- Selection of an assembly method; press fit assembly, snap fit assembly, mechanical fasteners, thermal welding techniques for thermoplastics, adhesive bonding and solvent bonding
Fundamental Design Considerations for "Other" Injection Molding Processes
- Structural foam, gas assist, multi-shot molding, multi-layer, metal injection molding
Lab Content
- Design analysis and prototyping lab
- Injection molding lab
INSTRUCTORS
Dr. Robert Malloy and Dr. Stephen Johnston