Injection Molding
To register, fill out the registration form and fax it to (978) 934-2028. For more information about registering, click here.
5 DAY LECTURE/WORKSHOP
OFFERED THREE TIMES:
March 11-15, 2013 (CRS# 00.716-002)
June 17-21, 2013 (CRS# 00.716-011)
August 12-16, 2013 (CRS# 00.716-021)
8:30am-5:00pm
TUITION: $1495
OVERVIEW
This seminar provides comprehensive information about the injection
molding process, and covers both the underlying engineering principles
as well as their application in the molding environment. Classroom
lectures cover the basics of the injection molding process and provide
practical analyses that yield results and can be applied in the molding
shop.
Injection molding workshops supplement the class material to provide
experience with actual machine operation and practical molding
techniques. Machine start-up, operation and shutdown procedures are
demonstrated. Molding trials that show the relationships
between processing variables and part quality are conducted.
Workshop emphasis is on practical setup procedures that optimize molding cycle and product requirements. Troubleshooting techniques and solutions to practical molding problems are also addressed.
AUDIENCE
This course is appropriate for sales managers, account managers, sales
and applications engineers, new product development specialists, product
marketing professionals, product designers and engineers, industrial
designers and industrial engineers, mechanical engineers, materials
purchasing managers, manufacturing personnel and technicians, plant
managers, production supervisors, quality assurance and quality control
personnel, and anyone involved in plastic part or mold procurement.
CONTENT
Overview of the Injection Molding Process
- Molding behavior of thermoplastics; molding functions - plastication & injection, forming & solidification; machine & mold operations, machine sequence; process sequence & variables - plastication, injection, packing & holding, cooling
Plastics Materials and Their Molding Requirements
- Molecular structure - polymer types, amorphous vs. crystalline; thermal characteristics - transitions & energy requirements; flow characteristics - non-Newtonian effects
Plastic Melting, Filling, Holding and Cooling
- Processing mechanisms - feeding, melting & mixing; screw problems & solutions; special screw options: mixing, multi-stage
- Isothermal cavity filling - filling modes - filling problems; thermal effects - flow length, orientation, stresses; runner & gate flows, flow balancing; pressure requirements - pressure traces; packing/holding & cooling-heat transfer effects; pvT applications
Elements of Injection Molds
- Mold types & configurations: 2-plate, 3-plate, stack, etc.; ejection systems; cooling systems; thermal systems/hot runners
Injection Molding Machinery
- Injection units - variants & options; clamp systems - toggle, hydraulic, hydromechanical; hydraulic/electrical systems, energy saving features; specialized machines: multicomponent, coinjection, gas-assist, etc.
Process Setup and Troubleshooting
- Scientific and decoupled molding concepts; troubleshooting; cycle time minimization and yield
Process Monitoring & Control
- Machine and mold sensors; proportional & servo valves; closed-loop control; velocity and temperature profiling; statistical process monitoring
WORKSHOPS
Attendees will use both electric and hydraulic molding machines, and
non-instrumented and instrumented molds.
ENROLLMENT LIMIT
Course enrollment is limited to 12 students.
INSTRUCTORS
Mr. Andy Routsis (March 11-15)
Dr. Stephen Johnston (June 17-21 and August 12-16)