When purchasing a high-quality jig saw blade suitable for you, choose the appropriate jig saw blade according to the shape, material and hardness of the material to be cut. The material, the number of teeth and the tooth shape and the working length are all important parameters. Be sure to pay more attention when purchasing.
First, how to choose jig saw blade when cutting steel pipe: When cutting steel pipe, due to the thickness change during cutting, the sudden impact force is large, the saw tooth is easy to produce a gap, and the tooth groove is easy to block. Therefore, you must pay attention to the following points when choosing:
A, the choice of the number of teeth
B. During cutting, the cutting amount and the speed of the saw blade should be fully considered.
C. When cutting bundles, it is best to use the same method as bundled cutting bars.
D. When cutting with the same effective thickness as the bar, the cutting efficiency should be 50% of the bar.
Second, the special material cutting how to choose the jig saw blade
A, choose the pitch
B. In the initial cutting, the cut-in at the corners and sharp corners should be reduced, and the casting should be reduced according to the hardness of the scale.
Third, the hardness of the material to be cut and the choice of saw blade.
A. If the hardness of the material to be cut is low, it is required to use a saw blade with low tip hardness and good back life. If the hardness of the material to be cut is high, it is required to select a saw blade with high hardness, good wear resistance and slightly lower back life.
B. If the material to be cut is very viscous, a saw blade with a large amount of teeth should be selected, otherwise, vice versa. Determination of cutting conditions: If the hardness of the material to be cut is low, the speed of the saw blade is increased, and the cutting efficiency is also improved. At this time, the pitch can be selected to be large; if the hardness of the material to be cut is high, the saw blade speed and cutting are required. effectiveness. However, although the hardness of stainless steel is low, but the viscosity is large, the speed of the saw blade and the cutting speed are greatly reduced.
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