Saw Blade Types Flashcards
How many blade types are there? (for class)
4 (Rip Blade, Crosscut, Combination & Triple Chip Tooth)
What is a Rip Blade designed for?
Cutting IN THE DIRECTION of wood grain
What is a Combination Blade designed for?
Ripping (softer wood) & Crosscutting wood (veneered or melamine covered composite boards)
What is a Crosscut Blade designed for?
Cutting ACROSS the wood grain
What is a Triple Chip Tooth designed for?
Combination of Rip Blade for softer woods and combination with Crosscut for veneered or melamine covered composite boards
What does the Rip blade look like?
- Large, Chisel-Like teeth
- Sharply angled hooks
- Deep gullets
- No bevels
What is the result of a Rip blade?
Cut isn’t particularly smooth but can cut quickly
Why can’t you use a Rip Blade to cut ACROSS the grain?
the teeth tend to tear wood fibers rather than sever them cleanly
What is the maximum hook angle for fast ripping SOFT wood?
30°
What is the maximum hook angle for fast ripping HARD wood?
20°
What is the maximum hook angle for fast ripping EXTREMELY HARD wood?
10° and 15°
What is the result of a Crosscut Blade?
Produces a fairly smooth edge
What does a Crosscut Blade look like?
- Teeth are smaller
- Greater number in teeth
- Sharp Tops
- Alternating Bevel
- Small gullets
Why shouldn’t you use a Crosscut Blade for ripping?
- The gullets will become clogged and the blade would bind because they can only handle a small amount of fine sawdust
- Friction would also cause outside of blade to rapidly heat up while the center stays cool which would result in cracking or warping of the blade
What is the result of a Combination Blade?
Quality and speed of the cuts aren’t as good or as fast but can do the job of both Rip & Crosscut
