TM 9-3418-200-14 & P
OTHER CUTS
Besides horizontal, vertical, and angular cuts, the shaper is often used for a variety of slotting, serrating, and simple form
cutting.
A slot may be cut to any width; the sides of the slot may be straight or sloping. A tool may be ground to the exact width of
the slot and then used to cut the slot in one operation. If the slot Is wider than the tool, the tool can be set down to cut one
side of the slot first. When this side is cut, the tool can be raised, the work moved over the correct distance, and the tool
fed down to complete the second side of the slot. Another method is to make a roughing cut leaving excess stock at both
sides and bottom. A finishing cut is then made as shown in figure 31A.
Serrating is the process of cutting a series of equally spaced grooves upon the surface of a job. Serrating may consist of
two sets of grooves which cross each other and leave small regularly shaped areas between cuts. Figures 45 and 46
illustrate a serrating job. The work was mounted with a parallel block underneath for support and to raise the surface of
the work above the jaws of the vise. The vise was first swiveled 30 to the right and clamped in place, (fig. 47). The slots
were equally spaced by means of the graduated dial on the cross feed handle. The depth was regulated by the graduated
dial on the down feed handle. The vise was then swiveled 30 to the left and the second series of grooves were cut. This
resulted in a series of diamond shaped areas with 60 sides.
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