Method of making new side trimmer and side trimmer blade

Details Method of making new side trimmer and side trimmer blade Method of making new side trimmer and side trimmer blade

B - Operations, Transporting

23

D

B23D 19/04 (2006.01) B23D 19/06 (2006.01) B23D 35/00 (2006.01) B23P 15/40 (2006.01)

Patent

CA 2074483

2074483 9210320 PCTABS00013 A side trimmer (1) made from hardened steel has an inner diameter with a keyway (17a, 17b), an outer diameter, and two faces. A recess (29) is machined in the faces to a radius greater than the keyway root (31). The recesses enable the faces to be hard faced with a ceramic tool without the tool being destroyed by interrupted cuts at the keyway. At least one face is formed with an annular groove (32) that separates the face into inner and outer faces. The outer face cooperates with the outer face of a second side trimmer to form a nip that trims a moving coil. When the outer faces have worn, they are resharpened by hard facing with a ceramic tool.

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