In metalworking, the cutting metal from the original rough castings such as the square or rectangular metal blocks, metal rods of I, L, H in shape is a concern of the business. The truth is that the good saw blade will decide on the best metal chop saw. So, please refer to the article below to understand more about this interesting topic.
For cutting metal, there are many ways and quick or slow speeds. For stainless steel and other hard metal, the most important rule is the rotational speed as well as the material of the saw blade. To apply to the actual product, we need to know the all types of the saw blade, which are divided into many groups as:
A steel saw blade and a Bimetal blade (a Bimetal blade is a term for an object made of two layers of metal)
High-speed steel blade with a hardening layer (the wolfram, black molyp and vanadium and so on) and alloy saw blade that is made from a mixture of metals with a suitable ratio in which the alloy layer is coated on the tips of the saw blade.
For annular and high-speed steel saw blade, the cutting speed is very slow while the cutting speed of the alloy saw blade is faster than others.
1. For cutting steel that is generally less than 6 millimeters in thickness
Because the steel material is not hard as others, the steel cutting is easy. Hence, the most suitable saw blade in this case is circular alloy one. Besides that, you should cut at a speed of 1500 r / min.
In addition, the most perfect saw for this type of blade is a small portable table saw (like a stone cutting saw but with slow speed)
2. For cutting stainless steel or hard steel that is generally less than 6 millimeters in thickness
The fact is that stainless steel is 40 times harder than other steels, so cutting them is more difficult than normal. Keep in mind that the most suitable blade is the HSS high speed steel saw blade and the saw is a fixed machine. This one is designed with cooling solution and the cutting speed is about from 50 to 100 r / min.
The use of this type of saw blade has the advantage of saving money. However, one of its drawbacks is its slow speed. Furthermore, the time of cutting is about 300 to 500 times, then the blade will wear out and the user has to sharpen it again. The average usage times are 5000.
In addition, small annular saw blades and saws can also be used for cutting stainless steel with a thickness of fewer than 6 millimeters. This method is also economically efficient, but the speed is slow as well.
3. For cutting stainless steel or hard steel that is generally thicker than 6 millimeters
You can combine the HSS high-speed steel saw blade with the fixed saws that are designed for a cooling system and the steel cutting at a slow speed of 50 to 100 rpm.
On the other hand, you can also combine the alloy saw blade with large automatic cutting machines as well as fast cutting speeds from 150 to 800 rpm. Moreover, the engine power of the breaker must be strong from 18 kW to 21 kW.
The average life span of a saw blade is 3000 to 5000 times. Then, the user can coat a layer of alloy on the saw blade and reuse. This can be repeated 4 to 5 times. Thus, we can completely use the alloy saw blade up to 20,000 times of cutting.
Notwithstanding, the biggest disadvantage of this type of saw blade is the very high initial investment cost so it can be economically difficult for the business.
To sum up, depending on the type of material we should choose the saw blades accordingly. This method saves not only the cost but also the effort of the user to bring the highest efficiency in the work and create the perfect slice of metal. Please see on the Internet for more information.