Patent ID: 7993185
Filing Date: 2011-08-09
Classification: B23D,Y10T

Abstract:
1. A finishing plate for fitting to a platen of a surfacing machine, comprising: a rigid metal plate with a plate thickness sufficient to be rigid for a surface finishing operation; wherein, the plate thickness is uniform over the rigid metal plate; wherein, the rigid metal plate has a plate width substantially larger than the plate thickness; wherein, the plate width is for conforming to the width of a platen of a surfacing machine; wherein, the rigid metal plate has a plate back surface; wherein, the rigid metal plate has a plate front surface; wherein, the plate front surface is on the opposite side of the rigid metal plate from the plate back surface; wherein, the plate front surface is parallel to the plate back surface; an attachment means for releasably securing the plate back surface to the platen; a plurality of cutting blades formed into the plate front surface: a plurality of first blade front rake surfaces formed into the plurality of cutting blades; a plurality of second blade front rake surfaces formed into the plurality of cutting blades; wherein, the first blade front rake surfaces are arranged in parallel relation to each other on the plate front surface; wherein, the blade front rake surfaces are arranged in parallel relation to each other on the plate front surface; wherein, the cutting blades, a blade back surface and a blade relief surface; wherein, the cutting blades span the plate front surface; wherein, the cutting blades have a blade tip at the intersection of the front rake surface and the blade back surface; wherein, the cutting blades have a blade bottom at the intersection of the front rake surface and the blade relief surface; wherein, the cutting blades have a blade height that is the distance from the blade tip to the blade bottom; wherein, the cutting blades have a pitch that is the shortest distance between a blade tip and an adjacent blade tip in the blade set; wherein, the cutting blades front rake surfaces are arranged in parallel on the plate front surface; wherein, the second blade front rake surfaces intersect the first blade front rake surfaces at a front rake surface intersecting angle.