High-efficiency milling cutter for powder metallurgy die steel
A powder metallurgy and milling tool technology, applied in the field of mold processing tools, can solve the problems of low product processing efficiency, unstable quality, fast wear, etc., to achieve good cooling effect, reduce abnormal chipping, and optimize the structure.
Pending Publication Date: 2021-04-16
WUXI GUOHONG MEASURING & CUTTING TOOLS
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Problems solved by technology
[0004] Although the above-mentioned device has the advantages of precise and fast cutting of workpieces, it wears quickly when processing powder metallurgy die steel, is easily broken, has a very short life and is unstable, and easily causes low processing efficiency and unstable quality of products
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Embodiment 1
[0019] Example 1: A high-efficiency milling tool for powder metallurgy die steel, including a cylindrical handle:
[0020] like figure 1 and Figure 4 As shown, a cutter head is formed at one end of the handle, and a plurality of unequal cutting edges are formed on the cutter head, and unequal slits are opened between every two cutting edges, and the cutting frequency of the cutting edges changes, and the cutting An R angle is formed on the blade, and a planar protective slope is formed on the groove at the R angle.
[0021] Each cutting edge is formed with a helical margin on the side of the handle, and a helical flute is provided between every two adjacent margins, and the chip flute corresponds to the cutting groove one by one.
[0022] like figure 1 As shown, the cutting edge includes four, the first edge and the third edge of the cutting edge intersect at the center of the cutter head, and the groove is inclined to the handle.
[0023] like figure 1 and image 3 As ...
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The invention discloses a high-efficiency milling cutter for powder metallurgy die steel. Through the high-efficiency milling cutter, the problems that the powder metallurgy die steel is quick in abrasion, extremely prone to breakage, short in service life and unstable when machined through a conventional alloy milling cutter are solved. According to the technical scheme, the high-efficiency milling cutter is characterized by comprising a cylindrical cutter handle, a cutter head is formed at one end of the cutter handle, a plurality of cutting edges which are arranged unequally are formed on the cutter head, a cutting groove is formed between every two cutting edges, an angle R is formed on each cutting edge, a protective slope is formed at the R angle of each cutting groove, each cutting edge forms a spiral edge belt on the side body of the cutter handle, a spiral chip groove is formed between every two adjacent edge belts, and the chip grooves are in one-to-one correspondence with the cutting grooves.
Description
technical field [0001] The invention relates to the technical field of die processing cutters, more specifically, it relates to a high-efficiency milling cutter for powder metallurgy die steel. Background technique [0002] Powder metallurgy die steel has uniform and fine carbides, and the area percentage of carbides is twice that of general die steel. Its wear resistance, isotropy, and electrical workability are much better than ordinary die steel. Powder metallurgy die steel Steel can reach the mold life of one million times. The hardness of powder metallurgy mold steel is generally as high as 68HRC. Therefore, when processing powder metallurgy mold steel tools, it is necessary to reduce frictional resistance and cutting heat to the greatest extent while increasing the strength of the tool. [0003] At present, the Chinese utility model patent with the publication number CN209736727U discloses a cemented carbide R angle milling cutter, including a cutter body, the bottom o...
Claims
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IPC IPC(8): B23C5/10
Inventor 李特王必永熊焰韩占龙祁亚军
Owner WUXI GUOHONG MEASURING & CUTTING TOOLS