| 摘要 |
An electric arc saw blade having improved magnetic characteristics and economy including a metallic disk composed of a high strength, electrically conductive material having secured to its periphery a plurality of non-magnetic inserts composed of a second material having a relatively high electrical conductivity. The inserts are placed in radially oriented notches of the disk which define undercuts, engaged by the inserts, to transfer centrifugal forces from the insert to the high strength disk. The inserts also have grooves which engage the face of the disk rigidly to secure the inserts to the disk. The inserts are installed by cold-working or brazing and they are readily removed and replaced with new ones to thereby substantially increase the life span of the blade.
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