WorksheetsIED 2.1.2 Hold it Together - 1
Total questions: 3
Worksheet time: 9mins
Independent Review Notes: Connecting Components
In engineering design, individual parts are often combined to form a larger system. The method used to connect components affects strength, durability, cost, ease of assembly, and whether parts can be taken apart later.
There are several common ways to connect components:
Adhesives bond parts together using chemical attraction. They are useful when a smooth appearance or weight reduction is important, but they can be difficult to remove once cured.
Fasteners (such as screws, bolts, nuts, pins, and nails) hold parts together mechanically. They allow for easy disassembly and repair.
Joinery uses shaped features in materials (such as wood or plastic) to lock parts together. These joints often provide strength and alignment.
Threads convert rotational motion into linear motion and are used in screws and bolts to create tight connections.
Snap-fit joints use flexible material that bends during assembly and snaps back into place, creating a quick and inexpensive connection.
Choosing the correct joining method depends on the design intent, including whether the connection should be permanent or temporary, how much load it must support, and what materials are being joined.
Ready to answer 2 open ended questions?
Select both "yes" below
Scoring Guide (10 points per question)
9–10 points: Clear, correct explanation showing understanding of joining methods and design intent.
7–8 points: Mostly correct answer with minor details missing.
5–6 points: Some correct ideas, but explanation is limited or unclear.
3–4 points: Very limited understanding shown.
0–2 points: Incorrect, unrelated, or no response.
yes
yes
Why is it important to choose the correct joining method when designing a product?
Give one reason an engineer might choose fasteners instead of adhesives.
