Course
Title:
Assembly
Designs for Plastic Parts
10
Professional Development Hours/1.0 CEUs
Course
Description: The
Assembly
Design for Plastic Parts course provides an insight into the various assembly
methods commonly used in plastic product assembly and manufacturing.
Detailed are the stages of design, engineering, and analysis of the part and
assembly. It is during these stage where an understanding of
plastic behavior and its mechanical limits are essential to preventing
failure. Also reviewed are the classical theories of the strength of
materials. Experience
and a working relationship with the material supplier is another key to
developing the final dimensions to achieve the optimum fit of a
fastener or the proper joint design.
Overall Course Objectives:
- Become familiar with the various types of mechanical fasteners.
- Understand structural features (snap fits) used for assembly of
plastic parts.
- Gain an understanding of ultrasonic assembly, along with the
design feature requirements needed with this technique.
Course Content:
Lesson 1 - Introduction, Mechanical Fasteners
Objectives:
- Recognize a variety of mechanical fasteners and the advantages
of each.
- Compare the removability & clamp load of
screws and rivets along with identifying the situations to
consider in the design stage.
- Explain the ultrasonic insertion method for threaded inserts.
Lesson 2 - Press Fits, Snap Fits, Design
Checklist for Snap Fits, Welding
Objectives:
- Describe snap fit and press fit assembly methods.
- Explain ultrasonic welding process and recognize factors that
affect weldability.
- Understand the joint design for ultrasonic
assembly & describe the spin & hot plate welding methods.
Lesson 3 - Electromagnetic Welding, Chemical
Bonding
Objectives:
- Describe the electromagnetic welding &
laser welding techniques along with the advantages of each.
- Identify joint designs which enhance the bond strength of
assemblies using chemical bonding or solvent bonding.
- Recognize the factors of adhesive bonding to be a successful
chemical bonding method.
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