Injection Mold Design Handbook

by Bruce Catoen, Herbert Rees

Overview

An injection mold is the heart of any plastics molding workcell. Understanding the principles of an injection mold design and its importance to a successful plastic part is fundamental to the success of the product. This book helps guide the designer, engineer, project manager, and production manager in making sure that the injection mold to be designed will work as intended.

This book will take the reader through the process of conceptualizing and designing an injection mold that will produce the desired plastic part. Since it all starts with the plastic part, the book will first focus on key features and details of the plastic part which are necessary for good mold design. The design of the main components of an injection mold will be discussed and good design practices will be shared. Finally the process of testing and gaining customer acceptance of the mold for production will be detailed. A comprehensive appendix and detailed drawings will provide the required detail for completing a mold design.

Product Details

ISBN-13:	9781569908150
Publisher:	Hanser Publications
Publication date:	10/25/2021
Pages:	820
Sales rank:	888,823
Product dimensions:	7.09(w) x 9.65(h) x 1.77(d)
Age Range:	18 Years

About the Author

Bruce Catoen is the founder of OASIC, a technology, strategy, mergers and acquisitions consulting company. He has more than 30 years of experience in the plastics equipment business including marketing, manufacturing and product development. He served as the Chief Technology Officer and Senior Executive for companies such as Milacron, Mold Masters ,and Husky Injection Molding Systems. He is the named inventor of more than 50 patents and is the coauthor of the book “Selecting Injection Molds”.

Herbert Rees (d. 2010) was Vice President of R&D at Husky Injection Molding Systems. He is author of several books in the area of injection molds and molding, including “Mold Engineering”, “Understanding Injection Mold Design”, “Understanding Product Design for Injection Molding”, and “Selecting Injection Molds”

Table of Contents

6. Machine dry cycle

7. Product handling

8. Ejection

b. Mold cost versus performance factors

i. Materials

ii. Complexity

iii. Cavitation

iv. Hot vs cold runner

v. Estimating mold cost

c. Need for prototyping?

i. Cycle

ii. Sizing

iii. Functionality

iv. Customer buy-off

6. Designing a mold

a. Start with the plastic part

b. Basic parts of a mold

c. Steps to designing a mold [Gantt chart]

d. Core cavity design

i. Opening / closing

ii. Strength and sizing

iii. Ejection

iv. Alignment

v. Pre-loads

vi. Cooling

vii. Shrinkage

viii. Mismatches

ix. Venting

x. Materials of construction

e. Mold shoe design

i. Cooling and fittings

ii. Pneumatics

iii. Hydraulics

iv. Materials

v. Alignment

vi. Mounting of cores and cavities

f. Runner design

i. Cold

ii. Hot

g. CAD / Drawings / BOM

7. Testing the mold and approval for production

a. First shots

b. Re-sizing

c. APQP

d. Fine tuning the cycle time and the part quality

e. Approval

f. Moving to serial production

8. Maintenance and longevity of a mold

a. Preventive maintenance checklist