PFERD Tools Main Catalogue Strana 473
Nabídka komerčních zákazníků **Nejlépe prodávané z PFERD
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Diamond and CBN tools Materials Diamond and CBN abrasives are used when materials cannot be machined with conventional abrasives such as aluminium oxide or silicon carbide. They also provide a more economical solution for many applications. Due to high chemical wear, rotating diamond tools are not suitable for work on steel. CBN tools are used for these applications. The two abrasives complement each other ideally. In the adjacent overview, you will find various materials associated with the abrasives. Diamond ■ Duroplastics, in particular with glass or carbon fibre reinforcement (GRP and CRP) ■ Ferrite (magnetic material) ■ Glass ■ Graphite and synthetic carbon ■ Grey and nodular cast iron ■ Tungsten carbide ■ Nickel or titanium-based superalloys ■ Technical ceramics ■ Wear-resistant coatings (powder metal alloys and hardfacing alloys) Safety notes and recommended cutting speeds 5 Safety notes The operator is responsible for the grinding application, including correct tool drive use, correct handling and use of the grinding tools. Wear eye protection! Wear hearing protection! Wear gloves! Wear a dust mask! Follow the safety instructions! Recommended cutting speeds The recommended cutting speed ranges depend on the application and must not exceed the maximum permissible peripheral speed. Because of the wide range of tasks and application fields of electroplated diamond and CBN tools, as well as the large influence of the employed tool drive, it is not possible to specify a generally valid cutting speed. The recommended cutting speed ranges serve as reference values. Generally, the following applies: ■ In dry grinding, do not use diamond tools at too high a cutting speed in order to avoid thermal damage to the abrasive. ■ If possible, do not use CBN tools under the cutting speeds specified below. The optimum cutting speed has a direct effect on the economic efficiency of the tools in use. 6|5 Catalogue ■ All parameters must always be coordinated with each other within the grinding process. If the cutting speed is changed, the feed, infeed and coolant supply, among others, must be adjusted accordingly. ■ Electroplated diamond and CBN tools can be used in dedicated stationary applications up to a peripheral speed of 125 m/s. CBN ■ Case-hardened steels ■ Roller-bearing and ball-bearing steels ■ Tool steels ■ Other hardened steel materials with a hardness from approx. 54 HRC
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