Dornschleifers

Dornschleifers are a type of grinding tool used in machining and metalworking. They are characterized by their cylindrical or conical shape, often featuring a helical or spiral abrasive surface. The term "Dornschleifer" itself is German, translating to "mandrel grinder" or "arbor grinder," which hints at their primary application.

These tools are typically mounted on a spindle or mandrel for rotation. The abrasive material, such as aluminum oxide or silicon carbide, is bonded to a core, which can be made of metal or plastic. The helical design of the abrasive surface is crucial for their effectiveness. As the Dornschleifer rotates, the helical ridges engage with the workpiece, creating a continuous grinding action. This design allows for efficient material removal and can produce a smooth surface finish.

Dornschleifers are commonly used for internal grinding operations, such as finishing the bores of cylinders, holes, or other internal features. They are also employed for deburring, chamfering, and sharpening operations. The specific grit size and abrasive material used will depend on the material being ground and the desired surface finish. Their ability to access confined spaces and their efficient grinding action make them a valuable tool in various manufacturing processes, from automotive to aerospace industries.