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You Have Options When Choosing a Saw Arbor

11/22/2022

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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:
​
  1. ​TI-LOC® Saw Arbors with integrated ER taper
  2. ​Gold Star Precision Series Saw Arbors
  3. General Purpose Series Saw Arbors​
  4. Custom Saw Arbors

Let's take a look at the differences below.

TI-LOC® Saw Arbors with integrated ER taper

Picture
 Saw Arbor tiloc ER Clamping nut snapin assembly.
Twist and snap into any ER clamping nut. No special holding nuts required.
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 Saw Arbors

Gold Series reach saw arbors
Gold Series reach saw arbors
Martindale Gaylee also offers a Gold Series reach arbor. These arbors are heat treated and ground to 0.0004” T.I.R. concentricity and squareness.

The Gold Series are engineered for use with carbide saws and where accuracy is a must. This VIBRA-CORE design, along with the deep low profile caps, gives extra support and less vibration.

General Purpose Series Saw Arbors

General purpose slitting slotting saw arbor
General purpose slitting slotting saw arbor
Martindale Gaylee's general purpose slitting/slotting saw arbors are all ardened all over (58/60 Rc) for added toughness on cutter locating surfaces and shanks.

The General Purpose Series Saw Arbors shanks ground to within 0.001" T.I.R. of cutter location diameter. They have an extra long, strong body with a protective black oxide finish. The super low profile on caps allows the cutter to reach areas inaccessible with conventional arbors.

Stout plug: extra support, less vibration sum up the benefits of this style.  Oh, and Weldon style shanks are readily available. 

Custom Saw Arbors

Custom made special saw arbors built to specification
An example of a Custom Saw Arbor
Can be made extra-long for reach beyond or inside part features

  • Accommodates multiple cutters for straddle or profile
  • Different outside diameter cutters on the arbor
  • ID grooving operations
  • ​Made with or without keyways
Spec your own custom made saw arbors
You can spec your own custom saw arbor
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Metalcutting Circular Saw Cutting Recommendations, Tips, Tricks & Troublshooting

3/18/2021

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compiled & edited by Bernard Martin
Martindale Gaylee Carbide HSS Saw Selection troubshooting tips tricks
As more and more of our customers are using Martindale Gaylee Circular saws we put together this guide to the commonly asked questions such as "Is there a rule-of-thumb for the number of teeth?" or "How much side clearance should I have?" Here we cover a lot of the fundamentals of selecting the right circular saw blade configuration, some tips, tricks, and troubleshooting for when things go wrong. 

Circular Saw Feed Rates

These are general cutting speed recommendations for circular saws used in metalcutting from Martindale/Gaylee. The may vary from application to application but are basically some general suggestions starting parameters when using high speed or carbide saws. 
  • HSS Saws: .002”-.006”  (IPT-inch. per tooth / CLPT-chip load per tooth)
  • Carbide Saws: .0002”-.0015”  (IPT -inch. per tooth / CLPT - chip load per tooth)
This is a conservative recommendation as a starting point for feed rates, and may vary depending on material being cut and cutting speed (SFPM).

Selecting the Proper Number of Teeth in Your Metalcutting Saw

Generally speaking, deep cuts and soft material require fewer teeth for chip clearance and stronger teeth (landed) Thin material requires more teeth, but keep-in-mind that at least 2 teeth on the blade need to be engaged in cut.
Saw-TC-Undercutting-Saw
Hard materials and narrow slots (under .025”) likewise require more teeth.

Hard Materials require more teeth, and  give a smoother cut,  but at a much lower production rate.  ​

Alternately beveled teeth keep chips from sticking in the cut and in the tooth gullets.

And Remember that there should be at least 2 teeth engaged in the cut at all times.
Increase Number of Teeth For:
  • Thin material 
  • Thin cuts under .025”
  • Slow spindle speeds
  • Hard material
  • Sand castings 
  • Thin castings 
  • Work hardened materials
  • Known inclusions or Hard spots 

Decrease Number of Teeth For:
  • Free cutting material​
  • Soft Gummy long chipping materials.
  • Deep cuts (over 1/4”)
  • High speeds Machining Applications
  • Chip clearance and tooth strength (Consider Metal Slitting or Copper Slitting style saws.)

Rake Angles and Side Clearance Angles

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. 

RAKE ANGLES
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.
Why do Carbide Saws Break?

Why do Circular Saw Blades Break?

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.

Generally speaking:
  • Thin saws should especially be supported by washers as large as possible.
  • Washers must be of equal diameter or they will flex out saw dish and cause one side of saw to rub.
  • The nut must be wrench-tight.

Saw Blade Teeth most often break as a result of:
  • Too high a feed rate.
  • Spindle bearings are worn.
  • Drive belts  are loose or sheaves worn.
  • Improper tightening: If saw blade pauses momentarily in its rotation while feed advances, it WILL break.
  • Workpiece indexed before the saw has cleared the slot.
  • Improper workholding - The workpiece not tight or not well supported.
  • Saw is dull, even the best tools do eventually wear out.

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.
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Jeff Terrace joins the Browne & Co Team!

6/11/2020

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In January of this year we welcomed a new member to our Browne & Co. sales team and with manufacturing companies opening up again, it's about time we introduce you to Jeff Terrace!

Jeff graduated from Ohio University with a Bachelor of Science in Mechanical Engineering in 2008.  He started his professional career at Lincoln Electric in Euclid, OH as a process & project engineer in the machining and mechanical parts group.  He was tasked with new product development for all the machined parts in the plant as well as new equipment implementation and process improvement.

After Lincoln Electric, Jeff joined the application engineering team at Ingersoll Cutting Tools in both the general marketplace and Automotive division.  The majority of his time at Ingersoll was spent working with local manufacturing companies as well as the Big Three automakers on custom tooling applications  for high and low volume production, custom carbide, CBN and PCD tooling.
Jeff Terrace Browne & Co Manufacturers Agent Rep
Jeff Terrace joined our Browne & Co team in January 2020
Jeff Terrace
cell: 216-556-3344
Jeff@Brownesales.com

Just before joining Browne & Co in January 2019, Jeff worked at Hoffmann Group, a German cutting tool, hand tool, workstation and storage solutions manufacturer.

Jeff has been working as an InovaTool representative since February of 2019 and recently joined Browne & Company at the beginning of 2020 as our Cutting Tool Specialist. Please send Jeff and email or give him a call to introduce yourself or pick his brain about an application question.
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James C. Hoyt Appointed Director of Corporate Manufacturing

10/15/2010

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Global Specialty Solutions Inc. today announced the appointment of James C. Hoyt to Director of Corporate Manufacturing.

Hoyt will be responsible for developing and implementing operational strategies to strengthen and grow the manufacturing performance of Global Specialty Solutions Inc. companies North American Tool Corporation (South Beloit, IL), Gaylee Saws (Sterling Heights, MI), Bitner Tooling Technologies (Sterling Heights, MI), and Allen Benjamin Inc. (Mesa, AZ).

Hoyt brings a wealth of relevant manufacturing and management experience to his new position. He was previously a consultant with Ingenium Technologies providing strategic, results-oriented productivity improvements to industrial manufacturers.

He served as the Director of Manufacturing for the Turbine Systems Division of the Woodward Governor Company, a $1.5 Billion provider of energy control systems and components for aircraft and industrial engines and turbines, and was responsible for all manufacturing and facilities management.  

He previously held key leadership positions with Woodward Governor, and prior to that, Hoyt was appointed to management level manufacturing engineering positions at Hamilton Sundstrand and Honeywell Aerospace. 
Picture
James C. Hoyt to Director of Corporate Manufacturing
“We look forward to welcoming Jim and adding his strong manufacturing and management leadership to the Global Specialty Solutions family of companies,” stated Curt Lansbery, President and CEO of Global Specialty Solutions Inc.

Hoyt will be based at the North American Tool manufacturing, sales and service facility in South Beloit, IL.

About Global Specialty Solutions Inc.
Global Specialty Solutions Inc. is a privately held enterprise with a diverse range of industrial business interests serving the needs of industrial distributors and manufacturers on a global scale. Additional information is available at: www.globalspecialtysolutions.com 
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