Tooth Rake Angle—The angle of the tooth face measured with respect to a line perpendicular to the cutting direction of the saw.
One thing we need to add here is that you ALWAYS want a negative hook for cutting metal and the new SystiMatic Melamine blade is a negative hook – it seems to work better for cutting Melamine. Cutting Angle: The angle between the upper face of the saw blade and the material being cut. Also known as a rake angle.
Additionally, what is set on a saw blade? Saw set is a term applied to various forms of a tool used in the tuning and sharpening of saw blades. The saw set is used to adjust the set, or distance the saw tooth is bent away from the saw blade.
Subsequently, one may also ask, what tooth set has a three tooth sequence of left right and straight teeth?
A basic, three–tooth sequence is left, right, and straight, or unset. The straight tooth is the raker tooth. The raker pattern in a five-tooth sequence (left, right, left, right, straight) with a uniform set angle helps to optimize cutting efficiency and surface finish.
What part of the saw blade tooth does the chip curl against?
The gullet is the space between the tooth tip and the inner surface of the blade. As the tooth scrapes away the material during a cut, the chip curls up into this area. A blade with the proper clearance for the cut allows the chip to curl up uniformly and fall away from the gullet.
Is it worth sharpening circular saw blades?
When your circular saw blade becomes dull, not only will it give you a rougher finish, but your saw’s motor will have to work harder and may burn out sooner. Sharpening your saw blades will save you money in the long run because you’ll get better cuts, and you’ll have to replace your saw and blades less often.
Why is tooth spacing important in saw blades?
More teeth means a smoother cut, fewer teeth means that the blade removes more material. Gullet – The gullet refers to the space between each tooth on the blade. A wider gullet produces a bigger chip of material cut. Tooth Configuration – The shape of the blade teeth also determines its performance.
What is a hook angle?
The hook angle refers to the angle at which the teeth will engage the material being cut. A high or positive hook angle means the outermost tip of each tooth will engage very aggressively, whereas a low or negative hook angle causes each tooth to take a less aggressive bite.
What is a triple chip blade?
Triple Chip Grind The TCG configuration excels at cutting hard materials such as laminates, MDF and plastics. Teeth alternate between a flat “raking” tooth and a higher “trapeze” tooth. The TCG configuration is also used for non-ferrous metal cutting blades.
What is negative rake saw?
This tooth configuration is designed so that each tooth takes a smaller bite without “grabbing” the material. Secondly, the teeth have a negative rake angle. This means that each tooth creates more of a shearing cut than blades with a positive rake angle.
What is a thin kerf saw blade?
Kerf is the term for the width of the carbide teeth. A full kerf is 1/8″, whereas thin kerf is just 3/32″. As you can imagine, it takes less machinery muscle to force the thin kerf blade through solid wood than it does the full kerf. On long rips, for example, lower powered saws might bog down.
How thick is a circular saw blade?
A typical “full kerf” blade will have a kerf of about 1.110”. Some heavy duty blades can have a kerf of 0.125” (1/8”) or even 0.172” (11/64”). If kerf is too thick for a weak circular saw (saws ranging less than 2 HP), it will rotate below the average speed and start to grind the wood.
Can you use a circular saw blade on a miter saw?
Circular saw blades are designed for use with miter saws, table saws, radial arm saws, cut-off saws and standard circular saws. Many circular blades can be used interchangeably between devices. This guide will help you use the correct blade for each job.
Why are hacksaw teeth alternately set left and right?
As hacksaw teeth are so small, they are set in a “wave” set. As for other saws they are set from side to side to provide a kerf or clearance when sawing, but the set of a hacksaw changes gradually from tooth to tooth in a smooth curve, rather than alternate teeth set left and right.
What is raker tooth?
Skip tooth blades have widely spaced teeth at a 0 degree rake angle to prevent clogging when cutting soft wood, non-ferrous metals and plastics. A raker tooth set has one tooth going to the left, one to the right, followed by a straight, or unset, tooth, which is called a raker.
What does tooth pitch mean?
Tooth pitch refers to the number of teeth per inch (tpi). The relevant variable for selecting the tooth pitch is the contact length of the band saw in the workpiece.
What is teeth per inch?
Teeth-Per-Inch (TPI) The number of teeth per inch determines the cut speed and roughness of the cut. Lower TPI blades cut fast but leave rougher edges. Blades in the 3 – 11 TPI range are typically best for wood and demolition work.
How do I choose a bandsaw blade?
A coarse tooth blade (2, 3 TPI) should be used for resawing wood and cutting thicker stock up to 8″. A fine toothed blade (18 to 32 TPI) should be used for thinner metals and plastics under 1/4″. For general cutting of 3/4″ wood 4 TPI will provide a fast cut and 14 TPI will cut slow, but leave a smoother finish.
What does TPI mean on a saw blade?
teeth per inch