White steel milling blade is a saw blade composed of a large amount of carbon (C), tungsten (W), molybdenum (Mo), chromium (Cr), vanadium (V) and other elements
That is, the high-speed steel saw blade has high thermal hardness after heat treatment. Since the cutting temperature of high-speed steel is as high as 600 ℃, the hardness still does not drop significantly, and the cutting speed of the saw blade made of it can reach more than 60 meters per minute, so the high-speed steel saw blade is named after it.
In the use of circular saw blades, a very important link is tooth grinding. Many users report that the newly purchased circular saw blades work well, and the most worrying thing is tooth grinding. The reason for worry is that the quality of the grinding teeth cannot be guaranteed-the service life of the saw blade drops sharply after grinding the teeth;
Grinding gears is a very professional job, which requires both professional training and high-quality gear grinding equipment.
At present, the performance of domestically produced gear grinding equipment cannot meet the precise requirements, and gear grinding workers have not received professional technical training, so they cannot determine the correct tooth pitch required for the workpiece to be cut. According to the ratio, according to the depth and thickness of each tooth during the grinding process, how to determine the correct grinding tooth pitch? How to determine the correct front and rear angles for sawing? How to make the tooth profile smooth and flat? These require professional skills and experience. Without these techniques, the time you spend grinding teeth far exceeds the time you spend cutting with saw blades.
Now, there are many small gear grinding shops on the market. The gear grinding equipment in these shops is low-grade, and the accuracy cannot be guaranteed, and the HZ tooth profile cannot be processed, and the correct cutting front and rear angles cannot be guaranteed. They don't have the technology, they just grab business through low prices. Correct grinding requires at least 8 cycles of grinding and 8 cycles of chamfering, that is, at least 25 minutes to complete a professional grinding. And these small gear grinding shops, in order to reduce costs and increase the amount of gear grinding, they only go through 4 cycles of gear grinding without chamfering at all. How can these low-cost 15-yuan grinding teeth guarantee the cutting life of the saw blade?
