Manufacturing technology of carbide milling cutters

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Carbide milling cutters, as an indispensable tool in modern machining, with its great hardness, wear resistance and cutting efficiency, is widely used in the field of precision machining of metals, plastics and composite materials. The manufacturing process is complex and delicate, covering several key steps from powder metallurgy to the finished product, ensuring great performance of the final product.

It all starts with a fine powder mix. The raw materials of carbide milling cutters mainly include high-hardness carbide powder (such as tungsten carbide wc, titanium carbide tic, etc.) and metal powder as a binder (such as cobalt co, nickel ni, etc.). These powders are mixed by a wet ball mill at a strictly controlled ratio, ensuring that each particle is evenly distributed to form a uniform mixture. This step is essential for the performance of subsequent products and is the basis for the high quality of carbide milling cutters.

The mixed powder is sieved to remove uneven and excessive particles to ensure the fineness and consistency of the powder. The powder is then added to a molding agent, such as wax or glue, to enhance its plasticity and facilitate subsequent pressing. In a special mold, the powder is tightly bound together by high pressure pressing to form a preliminary knife blank. In this process, the application of powder metallurgy technology makes the cemented carbide milling cutters have the characteristics of high hardness and high wear resistance in the material composition.

After pressing the forming of the knife blank, the next need to go through the test of high temperature sintering. Sintering is the core link in the manufacture of carbide milling cutters, which determines the final performance of the tool. In the sintering furnace, the blade is heated to extremely high temperatures (usually between 1300 and 1500 ° c), causing a chemical reaction between the carbide particles and the binder metal to form a dense eutectic alloy structure. This process not only increases the hardness and strength of the tool, but also improves its resistance to wear and corrosion.

After sintering is complete, the tool also needs to go through a series of subsequent machining steps to achieve the desired geometry and accuracy. These steps include grinding, cutting edge opening, passivation treatment, etc., through high-precision machine tools and professional tool grinding technology, to ensure that the cutting edge of the carbide milling cutters is sharp and smooth, improve cutting efficiency and processing quality. In addition, in order to further improve the performance of the tool, the tool surface is sometimes coated with a special coating, such as cvd chemical vapor deposition or pvd physical vapor deposition coating, to enhance the wear resistance and high temperature resistance of the tool.

Finally, after strict quality testing and screening, qualified carbide milling cutters are packed into the warehouse and ready to be put into the market. With its great cutting performance and stable processing quality, they have won the favor and trust of many users.

To sum up, the manufacturing process of carbide milling cutters is a complex and fine process, from powder mixing, pressing molding to high temperature sintering, follow-up processing, each step is crucial. It is these strict process control and fine processing technologies that make carbide milling cutters an indispensable tool in modern machining.