Method and apparatus for cutting the knurled workpiece to a method for forming an article having such a workpiece, and such molded articles

摘要

(57) method and apparatus for knurling a workpiece knurl pattern comprising at least two grooves of different Abstract] form is disclosed. The device comprises a knurled wheel holder, thereby keeping the contact point of the longitudinal axis of the knurled wheel, the knurled wheel is capable of angular rotation around the longitudinal axis holder. The apparatus also includes knurling wheel including teeth at least two dissimilar constitutional. How the method of molding a molded article in a workpiece that is knurled, giving a pattern which is the mirror image of the knurl pattern on the molded article, and molded articles such, to form an abrasive in the molded article, such as the abrasives are also disclosed.