Skiving blades

For most applications, toner removal is accomplished by skive blades, magnetic brushes, or fiber brushes. Low-volume applications usually use metal or polymeric blades. Magnetic brushes are used in some mid-volume applica-... 

Relatively simple equipment is used for billet molding. It consists of a stainless steel mold and hydraulic press for fabrication of the preform, and an oven for sintering. A lathe and skiving blades are required for preparation of film and sheet. 

A t5q)ical skiving tool can be seen in Fig. 7.1. For relatively thin tapes (50-250 pm) it should be set on the center line of the stock, but for higher thickness tape the blade should be set above the center line of the molding. Sheets up to 400 pm thickness and 30 cm width can be skived on a 20 cm wide lathe. 

The blade should be fabricated from high-quality tool steel or tungsten and regularly sharpened. Skiving speed should be low and the chuck speed should be in the range of 20-30 rpm. 

Skiving - This is a popular method for producing films and tapes of polytetrafluoroethylene (PTFE). Skiving resembles peeling an apple where a sharp blade is used at a low angle to the surface of a billet (cylinder) of PTFE. A similar method is used in the production of wood veneer from trees. 

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