The influence of blade material and portable steel cutter design on cutting effect is mainly reflected in the following aspects:
The influence of blade material
Hardness and abrasion resistance
The hardness of blade material directly influences its abrasion resistance and service life. High-hardness materials (such as alloy steel, high-speed steel, etc.) can maintain the sharpness of the cutting edge and reduce abrasion during the cutting process, thus prolonging the blade replacement cycle. Materials containing alloy elements such as tungsten and molybdenum, for example, can improve the abrasion resistance of blades and are suitable for cutting high strength steel bars.
Resilience
The toughness of the material can resist the impact of the cutting process and prevent the cutting edge from cracking. If the material is too brittle, the blade may break due to the concentration of stress when cutting hard or large diameter steel bars, affecting cutting efficiency and increasing safety risks.
Thermal stability
During the cutting process, friction between the blade and the steel bar can produce high temperatures. If the thermal stability of the material is poor, the cutting edge will soften and deform, reducing the cutting accuracy. Quality materials should have the ability to maintain hardness at high temperatures to ensure continuous and stable cutting performance.
Impact of blade design
Cutting edge angle
The cutting edge Angle (Angle) affects the cutting force and friction during cutting. Smaller cutting angles can improve sharpness, but the strength of the cutting edge needs to be balanced to avoid cracking if the Angle is too small. Reasonable design of cutting edge Angle can
optimize cutting efficiency and blade life.
Leaf shape
Scissor type design: the movable blade and the fixed blade to maintain a certain gap to prevent jamming, suitable for cutting fibrous materials (such as steel bars) to reduce the scattering of the line.
Axle design: use impact cutting material, suitable for high hardness or large section steel bar, but high power requirements.
Arc cutting edge: small contact area with steel bar, high unit pressure, reducing cutting edge wear while improving cutting efficiency.
Leaf thickness and width
1. Thickness: Thicker blades have higher strength and are suitable for cutting large diameter steel bars, but can increase cutting resistance. Thin blades have less cutting resistance, but higher precision is required to avoid deformation.
Width: Narrow blades reduce material consumption, but must be strong enough to prevent breakage. Wide blade stability, suitable for high load operation.
Fixing the blade
Double bolt fixation is more stable than single bolt fixation, which can reduce vibration, improve precision and prolong blade service life. In addition, the fit gap between blade and tool frame should be reasonable to avoid cutting bias or tool wear due to loosening.
