The carbide-tipped paint-free board saw blade has overcome the problem of
paint-free board edge chipping from the root through three-dimensional
collaboration of "material, design, and process". The core logic is "layered
stress, stable cutting, and accurate fiber breakage".
1. Material selection: Build a solid foundation to resist collapse
The cutting head is made of ultra-fine grain cemented carbide, with a
hardness of HRA 89-93. The cutting edge is sharp and wear-resistant, capable of
instantly cutting through the fibers of the plate material, rather than tearing
it, which can lead to edge chipping.
The substrate is made of high-strength alloy tool steel, which, after heat
treatment, exhibits sufficient rigidity and good toughness. During high-speed
rotation, it maintains minimal radial runout, effectively preventing the saw
blade from shaking and squeezing the cut.
II. Tooth profile design: targeted resolution of delamination risk
Utilizing specialized structures such as trapezoidal flat teeth, the sharp
teeth first scratch off the brittle veneer on the surface of the lacquer-free
board, while the flat teeth then smoothly cut the substrate, applying force in
layers to reduce veneer chipping.
Optimizing the number of teeth and tooth pitch ensures both cutting
efficiency and chip evacuation ability, preventing edge damage caused by sawdust
accumulation and compression on the cut.
III. Precision craftsmanship: controlling every detail
CNC gear grinding technology ensures consistent angle and sharpness of each
tooth, uniform cutting stress, and prevents edge chipping caused by excessive
local stress.
The automatic welding and hot die leveling processes ensure a firm
connection between the cutting head and the substrate, as well as high flatness
of the saw blade, further eliminating chipping caused by cutting deviation.
