← 4.1 Methods of joining sheet metal
The grooved seam
Metal Technology · Grade 10 · about 40 minutes
Folding, hooking, flattening and grooving two edges into a locked seam that needs no rivets or solder.
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- 6 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Why sheet metal has to be joined
- What makes a joint a good one
- The butt joint
- The lap joint
- The grooved seam
- Other seams and where each is used
- Allowing metal for the seam
- How a rivet holds
- Rivet types and sizes
- Setting a rivet
- Rivet spacing and edge distance
- Pop rivets
- Bolts, nuts and screws in sheet
- Self-tapping and machine screws
- How soft soldering works
- Flux and preparing the surfaces
- Making a soldered joint
- Choosing a joining method
- Safety in sheet-metal joining
- A joining task: making a tray