compiled & edited by Bernard Martin
Breakage, Wobble and Rubbing problems are often caused by how the washers are mounted on either side of saw.
It's commonly known that when saw thickness is less than 0.125″, keyways can cause stress risers and cracks. That is why washers are often used. However, Breakage, Wobble and Rubbing problems are often caused by how the washers are mounted on either side of saw.
Remember, washers drive the saw in the absence of a drive key. They must always be clean, flat and bur-free. A speck of dirt will let saws wobble and cut oversize.
If a saw breaks, it may score the washers. Always check for scoring marks around saw hole for dirt, chips or grit. Shiny spots, as small as a pinpoint, indicate that chips where imbedded under washers.
Circular skid marks indicate the nut was not tight.
Saw Blade Teeth most often break as a result of:
NOTE: HSS saws will turn colors as they heat during cutting. A straw color is the limit. The saw will lose its temper when it starts turning blue.
Edited by Bernard Martin
Often times in a shop, a saw arbor is a saw arbor is a saw arbor. That's just not the case and Martindale Gaylee offers several solutions. They have variants to saw arbors to meet your specific needs whether it be in a CNC milling machine, a CNC Lathe, a manual mill or even a Swiss Style CNC machine. This includes:
Let's take a look at the differences below.
TI-LOC® Saw Arbors with integrated ER taper
The Ti-Loc® SwissClamp System is a taper-integrated small tooling system is designed to work with virtually any collet or tool holder that employs the ER collet system (DIN6499). The Ti-Loc directly mounts into ANY ER Taper Live or Static Tool Position.
The Ti-Loc® System works with any existing tool holder and most all ER collet clamping nuts. Simply insert the Ti-Loc holder into any ER nut and twist to align the locking cam profile jus was you would for any ER collet.
The Ti-Loc® SwissClamp System can be used in any machine that has ER collet live tooling. It comes standard with ER 11, ER16 and ER20 taper arbors that serve as their own collet, eliminating need for two-piece arbor system.
This single piece design adds rigidity of set-up and improves total indicated runout (TIR). In fact, it reduces tolerance “stacking” to an incredibly low TIR of less than 0.0002". To top it off, it's less expensive & more cost effective than most comparable two-piece arbor systems.
A recommended maximum saw thickness is approximately 0.080”
Gold Star Precision Series
Increase Number of Teeth For:
Decrease Number of Teeth For:
Rake Angles and
Side Clearance Angles
Just as in an end mill or a band saw blade, a rake angle is the term used to describe the direction of the blade’s teeth, as referenced from the rotation and central axis of a saw blade. If you imagine a line going from the exact center of the blade to each tooth, having the front of the tooth directly on that line would be a zero degree rake angle. The rake angle of the blade is described in comparison to that imaginary line.
A positive rake angle meana that the teeth are angled more towards the angle of rotation, while a negative rake angle would mean that they are angled backwards, away from the direction of rotation. Generally speaking, the preferred rake angle is:
- 5° to 10° positive for other soft materials.
- 5° negative for yellow brass
- On center for steel.
SIDE CLEARANCE (Tangential Clearance Angle)
This is also known as dish or hollow grind. You measure down the side of the tip and the difference it is the difference between front and back. As you cut, material it gets compressed and springs back after the cutting edge passes.
A steep side clearance angle gives plenty of room for the material to expand and prevents thermal expansion of the base material. Keep in mint that a very flat side clearance angle can provide a smoother cut in some materials. For stainless steel and tenacious metals such as copper, zinc, tin or lead an increase in the side clearance is desirable as these materials tend to "spring back" (thermal expansion) on the blade.
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Arbor: Gold Star
Arbor: Ti-Loc Swiss
Carbide Insert Height
Carbide Insert Thickness
Carbide Insert Tolerance
CFT Coolant Fed Tooling
Jergens Ball Lock
MAQ Devibe Bar
MAQ Digital Protractor
Toolholder Insert Height
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