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Brochure
The Society of Plastics Engineers
is proud to announce its partnership with William
K. McConnell in offering Ten Fundamentals
of Thermoforming, a 2-Video Series accompanied
by a 200-page Companion Volume. The videos provide
a visually rich, dynamic view of the subject,
while the Companion Volume provides details, including
many useful tables, lists, and charts that could
not be shown in the video. Both heavy-gauge and
light-gauge thermoforming are covered. This program
is the only thermoforming training product in
the marketplace.
Footage for the videos was filmed
at four plant locations: Prent Corporation, Milsco,
Portage Casting & Mold and Thermoform Plastics.
The videos are enhanced with 3-D animation and
simulations that provide a look "behind the
scenes" at the principles behind the manufacturing
process. SPE is grateful to these companies for
their cooperation and spirit of generosity.
Who will benefit from this series:
The two 45-minute videos and the Companion
Volume were written for thermoforming's decision
makers: supervisors, technicians, managers, process
engineers, mold and product designers, cost estimators,
maintenance staff, and quality personnel. The
Safety, Effective Problem Solving, and Troubleshooting
would be particularly valuable in the training
of operators.
Materials and Machinery Suppliers
who sell, or want to sell, into the thermoforming
market, will also find value in the series as
an information tool for customers.
Product Designers who must
compare and choose among competing processes:
thermoforming, injection molding, hand lay-up,
and sheet molding compound will learn something
of value.
Customers who buy and use
thermoformed products will gain a greater understanding
of what it takes to design, quote, and make the
products. Both the thermoformer and customer will
enjoy the benefits of clear, more effective communication.
Table of
Contents:
Basic Thermoforming Methods: This chapter
explores the most well-known processes and their
advantages or disadvantages as they relate to
tooling, forming, ancillary equipment and machinery.
Schematics, line diagrams and photos are used
to illustrate parts, processes and molds.
Costing: Costing can make
the difference between profit and loss, yet it
is easy to overlook vital details. Comprehensive
checklists are included in this chapter to assist
in establishing material, tooling and processing
costs.
Mold and Product Design:
Guidelines and checklists are presented, to help
ensure that the appropriate steps are taken during
the design cycle.
Involving the Appropriate Team:
Producing a successful product involves cooperation
from internal and external sources.
Plastic Materials: A synopsis
of the two major classes of polymeric materials,
and how they relate to the thermoforming process.
Tables are provided for Key Material Properties
and Standard ASTM Terminology for Abbreviated
Terms.
Production of Film and Sheet
by Extrusion: An overview of the extrusion
process is the essential first step in the manufacture
of thermoformed products. Understanding how film
and sheet are made is an indispensable tool for
establishing a repeatable process and building
a good relationship with your supplier.
Heating Requirements: Sheet
temperature and forming rate are crucial elements
in thermoforming a quality part. This chapter
explores how plastics are heated and how forming
temperature affects both the material and the
finished part.
Tooling: Well designed
and well built tooling is important to achieving
consistent, economical thermoformed parts. Diagrams,
checklists and tables are provided to help the
thermoformer to make sound, informed decisions
about tooling.
Vacuum and Compressed Air: Rapid,
controlled forming is the key to consistent thermoformed
parts, and vacuum and compressed air systems must
be properly designed, built, and maintained. This
chapter outlines the principles.
Good Thermoforming Practices:
This final chapter discusses general rules of
safety, the effects of ambient conditions on employees,
materials, and the process; good record-keeping,
achieving a repeatable process, monitoring the
process, and logical problem solving. An extensive
Troubleshooting table covers everything from blisters
to tearing.
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