Общий каталог Yamawa 2021 - страница 685

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14. Materials used for Cutting Tools Intro Materials SP We have been seeking the best materials used for cutting tools since the company establishment because the performance of tools depends on the selection of materials used. Major materials used in our company are listed below. SL (1) Taps · HSS: Equivalent to SKH58, SKH51, SKH56Powder HSS (SKH10, High Vanadium High cobalt material) PO · Carbide: Cemented Carbide Materials of ultra micro grain (2) Dies · HSS: SKH51, SKH56 · Alloy Tool Steel: SKS2, SKS21, SKS3, SKS31 ST (3) Center Drills and Centering Tools · HSS: SKH51, SKH56Powder HSS (SKH10, High Vanadium High cobalt material) · Carbide: Cemented Carbide Materials of ultra micro grain ROLL *For product’s improvement, material may be changed without notice. CARBIDE Overview on tools materials Tensile strength, heat resistance, corrosion resistance and accuracy are the important features required of tool’s materials. These requirements have been changing due to miniaturization and lightening of parts. LONG And manufacturing methods, as well, have been changing because of necessity of economical efficiency such as saving process/cycle time while parts become hard-to-machine type and their hardness increases. As a result, the demand of industrial tools by users has become very tough. For example, higher wear resistance and chipping resistance are required in the area of hardness, and heavy cutting process or high-speed HAND cutting are required in the area of cycle time.Moreover, product accuracy with its rigidity, laborsaving brought by uniformity, and systematic reliability are highly required. TAPS Therefore, technological improvement of tool steels never stops developing so that they satisfy users needs. • The major materials used for taps are already listed in the chart, but those materials are ready to develop from conventional alloy tool steels and current high speed steel into next generation materials such as cemented carbide and cermet materials. New materials are developed even in high-speed tool steel area, such as SKH51 and SKH58 from SKH2, and they are moving into high EG (STI) performance materials, such as high vanadium, cobalt, and powder HSS made of high vanadium and high cobalt contents. • As the material for round dies, alloy tool steels are mostly used because of the relationship with the use of adjustable round dies. However, for the hard-to-machine material, die material has been shifted into High Speed Steel. • Major materials for center drills and centering tools are high speed steel materials, but they have been shifting to cobalt type or even SPECIAL cemented carbide from SKH51. THREADS, We keep on seeking to develop our technology to meet user’s needs and are trying to find the best materials in collaboration with steel GAUGES manufacturers. THREAD MILLS DIES CENTER DRILLS Technical info 686