Why is your cold saw always inefficient and not lasting long?

introduction

In recent years, with the development of technology, metal cutting has become more and more popular.

A cold saw is a common metalworking tool that offers many advantages over traditional hot saws. Cold saws use different cutting techniques to increase cutting efficiency and accuracy by reducing heat generation during the cutting process. First, in the metal processing industry, cold saws are widely used to cut metal pipes, profiles and plates. Its efficient cutting capabilities and small deformation make it an important tool in manufacturing.

Secondly, in the construction and decoration industry, cold saws are also commonly used to cut metal structures and reinforced concrete to meet various construction needs. In addition, cold saws can also be used in fields such as automobile manufacturing, shipbuilding, and aerospace.

And because cold sawing is very professional, too much or too little may cause problems during use.If the efficiency is low, the cutting effect will be poor. The service life does not meet the expectation, etc.

In this article, the following issues will be discussed and their principles and solutions explained.

Table of Contents

• Usage and Installation Matters

• Advantages of Cold Saw Blade

• 2.1 Compare With Chop Saw

• 2.2 Compare With Grinding Wheel Disc

• Conclusion

Usage and Installation Matters

Through the above comparison with different types of saw blades, we know the advantages of cold sawing.

So in order to pursue high efficiency and long service life.

What should we pay attention to during cutting?

Things to note Before use

1. Clean the cold cutting saw table
2. Wear protective glasses before cutting
3. Pay attention to the direction when installing the saw blade, with the blade facing downwards.
4. The cold saw cannot be installed on the grinder and can only be used for cold cutting saws.
5. Unplug the power plug of the machine when picking up and placing saw blades.

In Use

1. The cutting angle should be cut at the highest point of the upper right corner of the workpiece
2. Use low speed for thick materials, high speed for thin materials, low speed for metal, and high speed for wood.
3. For thick materials, use a cold saw blade with fewer teeth, and for thin materials, use a cold saw blade with more teeth.
4. Wait for the rotation speed to stabilize before lowering the knife, applying steady force. You can press lightly when the cutter head first contacts the workpiece, and then press down harder after cutting in.
5. If the saw blade is deflected, to eliminate the saw blade problem, check the flange for impurities.
6. The size of the cutting material cannot be smaller than the width of the cold saw tooth groove.
7. The maximum size of the cutting material is the radius of the saw blade – the radius of the flange – 1 ~ 2cm
8. Cold sawing is suitable for cutting medium and low carbon steel with HRC <40.
9. If the sparks are too large or you need to press down with a lot of force, it means that the saw blade is stuck and needs to be sharpened.

3. Cutting angle

Materials processed by dry-cut metal cold saw machines can be roughly divided into
There are three categories:

Rectangular (cuboid and cuboid shaped materials)

Round (tubular and round rod shaped materials)

Irregular materials. (0.1~0.25%)

1. When processing rectangular materials and irregular materials, place the rightmost side of the processed material on the same vertical line as the center of the saw blade. The angle between the entry point and the saw blade is 90°. This placement can minimize tool damage. And ensure that the cutting tool is in the best condition.
2. When processing round materials, place the highest point of the round material on the same vertical line as the center of the saw blade, and the angle between the entry points is 90°. This placement can minimize tool damage and ensure tool accuracy The best condition for opening materials.

Several major factors affecting use

Installation: The flange installation is unstable
The screw hole of the shaft head is loose (equipment problem)
The entry angle needs to be cut vertically

Feeding speed: slow feeding and fast cutting
It is easy to cause idling and ineffective cutting materials will produce large sparks.
The processing material needs to be clamped (otherwise the tool will be damaged)

Hold the switch for 3 seconds and wait for the speed to rise before processing.
If the speed does not rise, it will also affect the processing effect.

Advantages of cold saw blade

• 2.1 Compare With Chop Saw

The difference between cold cutting saws and hot sawing parts

1. Color

Cold cutting saw: the cut end surface is flat and as smooth as a mirror.

Chopping saw: Also called a friction saw. High-speed cutting is accompanied by high temperature and sparks, and the cut end surface is purple with many flash burrs.

2.Temperature

Cold cutting saw: The saw blade rotates slowly to cut the welded pipe, so it can be burr-free and noise-free. The sawing process generates very little heat, and the saw blade exerts very little pressure on the steel pipe, which will not cause deformation of the pipe wall orifice.

Chopping saw: Ordinary computer flying saws use a tungsten steel saw blade that rotates at high speed, and when it comes into contact with the welded pipe, it generates heat and causes it to break, which is actually a burnout. High ignition marks are visible on the surface. Generates a lot of heat, and the saw blade exerts a lot of pressure on the steel pipe, causing deformation of the pipe wall and nozzle and causing quality defects.

3. Sectioning

Cold cutting saw: The internal and external burrs are very small, the milling surface is smooth and smooth, no subsequent processing is required, and the process and raw materials are saved.

Chopping saw: The internal and external burrs are very large, and subsequent processing such as flat head chamfering is required, which increases the cost of labor, energy and raw material consumption.

Compared with chop saws, cold saws are also suitable for processing metal materials, but they are more efficient.

Summarize

1. an improve the quality of sawing workpieces
2. The high-speed and soft curve reduces the impact of the machine and increases the service life of the equipment.
3. Improve sawing speed and productivity efficiency
4. Remote operation and intelligent management system
5. Safe and reliable

Compare with grinding wheel disc

<br/Here we do a test and present a table. Convenient and more intuitive comparison

Dry Cut Cold Saw Blade VS Grinding Discs

Conclusion

If you’re not sure about the right size, seek help from a professional.

If you are interested，we can provide you best tools.

We are always ready to provide you with the right cutting tools.

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