Plastic Part Design for Injection Molding
3 DAY LECTURE/WORKSHOP
OFFERED THREE TIMES:
March 17-19, 2008 (CRS# 00.725-001)
July 16-18, 2008 (CRS# 00.725-011)
August 11-13, 2008 (CRS# 00.725-021)
TUITION: $1195
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 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, review of the injection molding process, and fundamentals of
molds/tooling
Manufacturing Related Design Considerations for Molded Plastic Parts-
Mold filling
considerations, gating, shrinkage
and warpage of molded parts, mold cooling
considerations, part ejection considerations
Mechanical Behavior of Plastic Materials-
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
Experimental Stress Analysis-
Brittle coatings, strain
gauges, chemical testing and photoelastic testing
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
INSTRUCTOR
Dr. Nick Schott
© 1995-2007 University of Massachusetts Lowell,
Continuing Studies, Corporate & Distance Education