How to choose alloy saw blade
Release time:
2024-08-02
Cross-cutting needs to cut off the wood fiber, the cut surface requirements for flat, can not have knife marks, and can not have a burr, the saw blade used in the outer diameter of 10 inches or 12 inches and the number of teeth should be in the 60 teeth to 120 teeth, the thinner the material to use the number of teeth correspondingly more.
First, alloy saw blade selection basis
According to the sawing material properties classification
1, solid wood: cross-cutting, longitudinal cutting.
Cross-cutting needs to cut off the wood fiber, the cut surface requirements for flat, can not have knife marks, and can not have a burr, the saw blade used in the outer diameter of 10 inches or 12 inches and the number of teeth should be in the 60 teeth to 120 teeth, the thinner the material to use the number of teeth correspondingly more. Feed speed should be slowed down accordingly. The number of teeth of the longitudinal saw is relatively small, the feeding speed will be faster, so the requirements for chip removal are very high, so the requirements of the saw blade OD 10 inches or 12 inches in the number of teeth between 24 and 40 teeth, and such as cutting the knot more materials need to be used with a dovetail tooth saw blade.
2、Manufactured boards: Density board, particle board, plywood.
Cutting needs to fully consider the cutting force, and the problem of chip removal, the use of alloy saw blades with an outside diameter of 10 inches or 12 inches of teeth should be between 60 teeth to 96 teeth.
3, the use of two common saw blade tooth type:
(left and right teeth) is mainly used for solid wood cross-cutting, longitudinal cutting, sticker veneer density board, and plastics.
(ladder flat teeth) is mainly used for hard double veneer board, non-ferrous metals.
Saw blade basic data: ① machine spindle speed, ② processing the thickness of the workpiece and material, ③ knife saw outer diameter size and aperture (shaft diameter); this can be seen on the alloy saw blade these parameters.
Remember: the spindle speed should never exceed the maximum speed of the saw blade, which is a safety issue that must be ensured. (I have seen a lot of people use the saw blades on end mills, which usually have a speed higher than the maximum speed of the saw blade, which is very dangerous.
Selection basis: calculated by the spindle rotation and the proposed matching saw blade outer diameter, cutting speed: V = π × outer diameter D × rotation N / 60 (m / s) reasonable cutting speed is generally in the range of 60-90 m / s, the
Specific recommendations:
Material Cutting speed
Softwood 60-90 (m/s)
Hardwood 50-70 (m/s)
Particleboard, plywood 60-80 (m/s)
Cutting speed is too large, machine vibration, voice, saw blade stability is reduced, processing quality is reduced, cutting speed is too small, productivity is reduced. The same feeding speed, the amount of cutting per tooth increases, affecting the processing quality and the life of the blade saw. Because the saw blade diameter D and spindle speed N is a power function of the relationship, in practice, a reasonable increase in speed, reduce the diameter of the saw blade is the most economical.
You need the real quality-price ratio:
As the saying goes: "cheap is not good, good is not cheap", may be true for other commodities, but I'm afraid it's not true for cutting tools; the key is to match. Many factors on the job site: such as equipment sawing object, quality requirements, quality of personnel. Comprehensive assessment, a sensible choice of the best use, just right, in order to save money, reduce costs, participate in the industry competition. This depends on the mastery of specialized knowledge and information on similar products.
Second, the correct use:
In order to make the saw blade to play its best performance, must be used in strict accordance with the specifications;
1, different specifications and uses of the saw blade, the design of the head angle and the form of the base is different, as far as possible according to its corresponding occasions to use;
2, the equipment spindle and clamping plate size and shape accuracy has a great impact on the use of the effect, according to the installation of the saw blade should be checked and adjusted before. Especially on the contact surface of the clamping plate and the saw blade to affect the clamping force caused by the displacement of slippery factors must be excluded;
3, pay attention to the work of the saw blade at any time, the occurrence of abnormalities, such as vibration, voice, processing surface away from the material, must be promptly shut down to adjust, and timely grinding, to maintain the peak profit;
4, sharpening the saw blade shall not change its original angle, to avoid the head of the knife localized sudden heat and cold, it is best to ask a professional sharpening
5、 Temporarily unused saw blade should be hung vertically, avoid long time flat, and should not be stacked on the pressure, the head of the knife to be protected, no collision.
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