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Apr 28, 2024
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PPT 222 - Mold Making
5.0 Credits
This course will help prepare apprentice machinists for a career in the Plastic Process Technician specialty. This course will explore the materials, processes, and mold design principles for injection molding, compression molding, transfer molding, and die casting. Apprentices will learn about molding equipment and the design of mold components, such as cores, cavities, inserts, runners, gates, venting systems, and plungers. Mold polishing, part finishing, and mold maintenance will also be discussed. Apprentices will gain practical, hands-on experience by designing a part and a mold utilizing Computer Aided Design (CAD) software. They will then machine, polish, test, and revise their molds. Note: This class is part of an AJAC apprenticeship program.
Prerequisite CAD class or experience; CNC Mill class or experience.
Course-level Learning Objectives (CLOs)
Upon successful completion of this course, students will be able to:
- Define mold industry terminology.
- Describe the role and function of molding presses.
- Describe the purpose and design considerations for mold components, such as plungers, cores, cavities, sprues, gates, runners, and vents.
- Describe the processes of compression molding, transfer molding, injection molding, and die casting.
- Describe properties and uses of thermoplastic, thermosetting, and metal materials for molding.
- Evaluate mold component materials and heat treatment processes to make the proper selection for a job.
- Design solid models of a part to be molded in a CAD software program.
- Create a job plan for machining a mold.
- Design solid models of a mold cavity in a CAD software program.
- Create a mold cavity with machine tools.
- Create, finish, and inspect a molded part.
- Describe and practice processes for mold polishing and repair.
- Demonstrate professionalism, critical thinking, and teamwork during in-class discussions, presentations, and hands-on activities.
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