Who Should Attend ▼
Plastic part designers, processing engineers, production managers, individuals involved
in production of unique parts, and engineers and managers involved in reducing
production time while maintaining quality.
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Benefits and Learning Outcomes ▼
- Learn good molding practices and review scientific injection molding principles
- Understand problems with resins, processing, and machines
- Learn to apply innovation solutions to injection molded parts
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Course Outline/Topics ▼
THE EQUIPMENT
Introduction & Course Outline Review
- Molding process particulars...Good molding practices
- Selecting an injection machine to meet or exceed your needs.
- Sizing the equipment list to the operation
- Auxiliary equipment needed
- Cooling systems
Review Scientific Injection Molding Principles
- Mold construction review (various types)
- Review injection mold types.
- What to expect from each mold type
- Limitations of each mold type
- Selecting the correct design (guidelines)
- Maintaining your injection molds
Product design issues
Design issues
Designing to fit the need
Designing pitfalls
Class Project Assigned (Individuals)
PROBLEMS AND SOLUTIONS
Machine problems
- What kind of issues can be machine related?
- Injection machine limitations
- What are common machine failures and how to prevent them
- Maintaining your injection machine
Processing / Plastic part problems
- Common issues (Gate Blush, Flow lines / Streaks, Hard to fill parts)
- Delaminations, Over packing, Excessive Shrinkage, Short Shots
- Splay / Silver Streaks, Surface Blemishes, Flash, Warpage
- Weak Weld Lines, Bubbles vs. Voids, Black Specks
- Determining root cause & solutions of each defect
Resin problems
- Correct selections vs. incorrect selections
- Fillers and additives
- Shrinkages
- Mechanical properties
Mold problems
- Common issues
- Preventing those issues in design
- Correcting them once they occur
- Don't make matters worse by poor decisions
Final Class Project....Groups
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