Why raw edges must be treated
Metal Technology · Grade 10 · about 40 minutes
The three faults of a sheared edge, and the four treatments that fix all of them at once.
Sign in to read this lesson
Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.
- 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
- Shaping sheet without cutting it
- Stretching and shrinking
- Why raw edges must be treated
- Forming a safe edge
- Forming a wired edge
- Beading and swaging
- Hollowing
- Sinking
- Raising
- Planishing
- Stakes and formers
- Hammers and mallets for sheet work
- Work hardening and annealing
- Choosing the process for a shape
- A shaping task: making a scoop