Abstract Casting process, as its name suggests, is a process of making parts of high-temperature molten metal into a mold and obtaining the desired shape and performance of the workpiece after cooling and solidification. The history of casting has existed in China for thousands of years, from the Bronze Age to the Industrial Revolution.
The casting process, as the name implies, is a process in which a molten metal liquid is poured into a mold and cooled to solidify to obtain a desired workpiece shape and performance. The history of casting has existed in China for thousands of years. From the Bronze Age to the Industrial Revolution, the machinery industry is inseparable from casting. The casting process represents the level of a national machinery industry. The machinery industry is large enough for aircraft, high-speed train components, and marine machinery. , engineering machinery, power equipment and other equipment manufacturing industry, small to pots and pans are used in casting process, such as we saw the cast aluminum pot, aluminum pot and so on.
Casting workpieces can be divided into two categories from materials: ferrous metal castings such as grey cast iron, ductile iron, alloy cast iron, and cast steel. One type is non-ferrous metal castings such as cast copper alloys, cast aluminum alloys; with the development of the mechanical industry, the performance of various casting alloys has been greatly improved, and the machining of castings is increasingly using high-speed cutting and drying. Cutting, high-speed cutting and dry cutting tools are the fastest growing cubic boron nitride tools (CBN tools) and diamond tools (PCD tools). As an industrial "teeth", CBN and PCD tools provide the basis for difficult-to-machine materials and high-speed machining in batches.
The casting process is mainly divided into: metal melting, model making, casting solidification and demoulding cleaning. The main materials for casting are cast steel, cast iron, cast non-ferrous alloy copper, cast or die-cast aluminum zinc, cast or die-cast lead.
Common defects in casting castings are: stomata, sand, sand, sand, sand, cold, insufficient, shrinkage, shrinkage, sarcoma. Casting defects have always been an unavoidable and difficult problem for the foundry industry. For the repair of unqualified castings, the conventional method is mainly for welding repair. The hardness of the hardfacing layer should be high. The superhard CBN tool should be used to solve the surface roughness of the workpiece with the uneven surface of the turning surface.
Casting workpieces can be divided into two categories from materials: ferrous metal castings such as grey cast iron, ductile iron, alloy cast iron, and cast steel. One type is non-ferrous metal castings such as cast copper alloys, cast aluminum alloys; with the development of the mechanical industry, the performance of various casting alloys has been greatly improved, and the machining of castings is increasingly using high-speed cutting and drying. Cutting, high-speed cutting and dry cutting tools are the fastest growing cubic boron nitride tools and diamond tools. Super hard cubic boron nitride tools BN-S30, BN-K1 grades are used for high speed roughing and finishing of pearlite ductile iron and grey cast iron, as well as high hardness and wear resistant alloy castings. Diamond tool grades are CDW10, CDW20, CDW30; suitable for finishing, medium finishing and roughing of aluminum alloy, babbitt, brass alloy, copper alloy, lead alloy, manganese alloy, silicon aluminum alloy, silver, platinum, tungsten Non-ferrous metals such as hard alloys and zinc alloys.
Casting as a blank forming process, the performance of castings is mainly determined by casting. With the development of the mechanical industry, various high hardness, high strength, high wear resistance, corrosion resistance and high temperature resistance of castings are becoming more and more. Machining and its tools also exhibit high hardness, high speed machining, high efficiency and high precision with the processing requirements of these castings. CBN and PCD tools provide a tool basis for difficult-to-machine materials and high-speed machining. For example, the BN-K1 new grade tool is used to rough-process large castings of high-chromium anti-wear white cast iron and heat-resistant and corrosion-resistant high-cobalt-chromium-molybdenum casting alloy. The BN-S30 grade is used to tell the processing of gray cast iron, and the BN-K20 high speed fine car is used for high strength ductile iron. The cast aluminum alloy is processed at a high speed of 1000 m/min or more using a CDW10 grade PCD cutter. With the mass production and high performance requirements of castings, machining is also increasingly inclined to high-speed cutting and dry cutting; in the 21st century, new machine tools and numerical control technology and new material tools will be more and more popular for casting and machining.
As a pioneer in the localization of tools, CBN and PCD tools are dedicated to hard material processing and high-speed machining. Its "tailor-made" service, professional, efficient and fast-responding service, provides complete tool products and solutions for high-hardness cutting and high-speed cutting.
