What are the main technical standards for saw blade milling cutters?

by:Ronix Tools     2021-05-19
Saw blade milling cutter is both a saw blade and a milling cutter. It is the product of both. Saw blade milling cutters are mostly made of W6Mo5Cr4V2 or equivalent high-speed steel, cemented carbide and other materials. Although the hardness of cemented carbide is higher than that of high-speed steel, and the cutting force is stronger, it can increase the speed and feed rate and increase the productivity. However, the knife is not obvious. Although it can process difficult-to-machine materials such as stainless steel/titanium alloy, the cost is higher, and the knife is easy to break when the cutting force changes rapidly.   Saw blade milling cutter use: Mainly used for processing or cutting narrow and deep grooves in iron, aluminum, copper and other metal materials below medium and hard. It can also be used for milling of plastics, wood and other non-metals. Superhard material saw blade milling cutter, carbide saw blade is mainly used for milling processing of difficult-to-cut materials (heat-resistant steel, stainless steel and other high-strength steel).   Technical requirements for saw blade milling cutters.  1. Appearance of the milling cutter: the saw blade milling cutter must not have cracks, delamination, chipping, and obvious gaps. After    saw blade milling cutters were produced, the following requirements were also made on the appearance: there should be no obvious scratch marks, and the tooth tips should not be yellow or black.  2. The end face of the end face to the axis of the inner hole is bounced. The 2008 national standard of the saw blade milling cutter stipulates: when the outer diameter is less than 50mm, it should not exceed 0.02mm, and when the outer diameter is greater than 50mm, it should not exceed 0.03mm. The measurement result of Jiangyin Minghui Precision Tool is within 0.01. 3. Surface roughness of saw blade milling cutter: The 2008 edition of the national standard stipulates that the surface roughness of the rake face and back of the cutter tooth Rau003d3.2μm, the surface roughness of the cutter tooth side surface Rau003d0.63μm, the surface roughness of the inner hole Ru003d0.8μm. This is a very basic requirement. The surface roughness of the rake face and the back of Minghui's cutter teeth is required to reach Rau003d0.63μm, and the side face to achieve a mirror effect. Because the smoothness of the rake face of the tooth is very important to the use effect, the high smoothness can greatly improve the effect of the surface of the workpiece, without burrs, and greatly extend the service life. 4. Position tolerance of the milling cutter: The 2008 edition of the national standard for saw blade milling cutters stipulates two important position tolerances. One is that when the radial runout of the cutting edge to the axis of the inner hole is less than 50mm, the radius of one turning will not jump. When the diameter exceeds 0.03mm and the outer diameter is greater than 50mm, the diameter of one revolution does not exceed 0.045mm, and the diameter of adjacent teeth does not exceed 0.02mm. In our opinion, the requirements of the user unit have exceeded this standard. Perhaps users may not necessarily say the number of jumps, but users will require durability. After all, they require small jumps. The corporate standards of Jiangyin Minghui Company are: Outer diameter runout: when the outer diameter is <50mm, the outer diameter has a radial runout of 0.02mm; when the outer diameter is greater than 50mm, the outer diameter has a radial runout of 0.025mm; when the outer diameter is greater than 100mm, the outer diameter has a radial runout of 0.025mm. The radial runout is 0.04mm.   Correct use of saw blade milling cutter:    1. Saw blades of different specifications and uses have different design head angles and base forms, so try to use them according to their corresponding occasions.  2. The size and shape accuracy of the main shaft and splint of the equipment have a great influence on the use effect. Check and adjust before installing the saw blade. In particular, the factors that affect the clamping force on the contact surface of the splint and the saw blade and cause the displacement and slip must be eliminated.
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