How do customers choose the most suitable bimetallic band saw blades for their sawing machines? Using Double metal band Saw Blade Every user expects Bimetal band saw blade manufacturers and band sawsArticle SalesManufacturers to provide the ability to adapt to efficient cutting of the workpiece blade products. It should be clearly pointed out that efficient cutting must be based on the correct selection of band saw Blade profile, model and reasonable adjustment, matching with the parameters of sawing machine can be achieved.

1.  Double metal band saw blade tooth type classification:

At present, double metal band saw blade manufacturers and users for the tooth geometry of the parts of the name and tooth shape is not uniform, but each name has its own truth, some in accordance with the teeth-shaped function named (such as the tube teeth, tensile teeth); some are named after the geometric shape of the tooth shape (such as straight teeth, turtle teeth, eagle mouth gear), in order to facilitate the narrative, the book of the tooth geometry of the parts of the name and the tooth shape of the same as the following: The following figure of the tooth geometric dimensions of the name of each part:

2. Tooth form name stipulation:

Upper Double Metal band saw Blade "specification table" in the "matching tooth shape" column in the expression is: 1.4/2.0, 2/3, 0.75/1.25, 3, 4, 6 and so on. The numbers in these expressions denote the number of teeth contained within the 1-inch (25.4mm) length. For "equal teeth" such as: 3, 4, 6 teeth, respectively, 1-inch length contains 3, 4, 6 sawtooth, the tooth distance conversion into metric units are 8.4mm, 6.35mm, 4.2mm. The 1.4/2.0 and 2/3 in the table are the expressions of the tooth shape. such as 2/3 tooth shape, is a plurality of tooth spacing combined into a "circular tooth distance", wherein the largest tooth pitch is 2 tooth spur (12.7mm), the minimum gear distance of 3 tooth pitch (8.4mm). The rest also has excessive teeth, the tooth distance between the teeth is between 2 tooth distance and 3 tooth pitch. And so on, the formation of a variety of "equal teeth" and "teeth" tooth shape.

3. Double metal band saw Blade tooth form

4. The advantages and disadvantages of various types of teeth and the scope of application:

4.1.  Standard and other teeth:

How do customers choose the most suitable bimetallic band saw blades for their sawing machines?
Advantages: Due to equal tooth spacing, cutting workpiece when cutting force evenly, the plane smooth.

Disadvantages: During use, it is easy to resonate with the natural frequencies of the machine tool, damaging the workpiece and saw blades. Because the front corner is zerodegree, need to be increased intoGive pressureTo improve efficiency. ResultingSaw Blade back side inThe alloy limit blocks in the guide arm of the sawing machine speed up wear and reduce the life.

Applicable range: Cutting solid material and small diameter solid material into bundles.

4.2. Standard variable tooth:

Advantages: Due to unequal teeth, can be well removed and the natural frequency of the machine generated resonance, cutting smooth, reduce noise. This is also the fundamental reason for the emergence of tooth shape in practice.

Disadvantage: Due to varying tooth pitch, tooth grooveSpace to cutand workpiece cutting knife flower uneven.

Applicable scope: Cutting groove steel, I-beam, profiled steel and other sections of the workpiece.

4.3. Hook teeth:

Advantages: The front corner of the hook tooth is generally 3-10°, in cutting the workpiece, the saw blade itself can generate additional feed pressure, the larger the front angle, this additionalGive pressureAnd the bigger the cutting force, the greater the additional pressure. thereby forBack edge decompression of saw Blade, effectively protecting the saw bladesThe back side of theLoss, prolong the life of saw blade. Using smallGive pressureand moderate wire speed cutting can effectively improve working efficiency.

Disadvantage: not suitable for bigGive pressureand high-speed cutting. "Pay particular attention to use"

Applicable range: Tooth and hookTooth change Toothis the standard tooth improvement, the reasonable choice usesHook tooth typeDouble metal band saw Blades will improve sawing efficiency and save blade, reduce cost.

4.4. Hook the tooth itself can produce additionalGive pressureSchematic diagram:

From the image above: "Hook teeth" in the front corner of the cutting force, will produce downward feeding force. The size of the feed force is proportional to the size of the front angle and the main cutting force.

Principle of tooth number selection and contact workpiece tooth number of band saw Blade

Sometimes we find that in the process of material processing, saw blades are very prone to pullTooth dropThe phenomenon. At this time, in addition to considering the impact of other factors, we should first check whether the selected saw blade teeth are correct. For the material being cut, the following is a reference guide for selecting the number of teeth to contact for the workpiece, which has an ideal maximum number of teeth and minimum teeth.

3 Teeth principle: The number of teeth in contact with the workpiece at any time shall be not less than three teeth. Because it can reduce the load of each tooth, reduce the tooth loss, reduce the pull teeth.

 24 Gears Principle: The number of teeth in contact with the workpiece shall be no more than 24 teeth at any time. Because it can reduce the load of the tooth groove, as well as the band saw bias. The tooth trough overload causes a variety of problems, including tooth stripping, sawing, bending, and tooth loss.And the band break.。Saw BeltThe deflection will cause the cutting position to change and bend, Cause saw Band The break.

How do customers choose the most suitable bimetallic band saw blades for their sawing machines?

 Select 3-24 Gears The number of teeth between will produce a good shape for cutting and Extended Saw Band Life!

 The following table provides the maximum size and minimum size of the material used for common teeth, which can be further adjusted in practical application.

If the Saw Cut some kind of Special material replacement blade is not so practical, you can extend the use of the table by increasing or reducing the feed speed of the band saw.

Usually, it is necessary to cut a very wide metal rod, and at present in the sawing machine saw blade sawtooth is relatively small, then the normal method of processing will cause the SawCut timeLength, sawing shape change, peelTeeth toand a number of other issues. What to do? We can allow the workpiece to tilt a certain angle to reduce the number of teeth stuck on the workpiece. Note that the workpiece must be clamped to prevent the workpiece from loosening when sawing!

The other thing is, if you use a large tooth pitchSaw band cutVery thin steel plate, because too much pressure to make the saw blade forward too fast, then will pull the tooth and cause to lose the tooth. How to solve this problem? We can slow the speed of the saw blade to eat, if the shape of the chip is smaller and the pressure is more appropriate.