All our edge skiving machines operate in two modes. The first mode has the depth of cut preset by the programmed tool loading pressure. In this mode the depth of cut remains constant even with varying width or camber. The second mode uses fixed width tool setup and is useful for shaving to exact size.

B. Rotary cutter machines are used for high metal removal at very low speeds. They are often followed by vibratory tooling to remove the milling scallop marks.

The cost of milling heads can be greatly reduced by mounting milling cutters directly on the shafts of modern, inexpensive, lightweight permag DC motors. We have pioneered this work. The variable motor speed enables accurate matching with the good economics compared to tripling machine weight and cost.

C. Another useful process is burnishing, confined to light cut deburring only. Burnishing is a rubbing process using the non cutting edge of the tool and is excellent for smooth deburring. It is easy to set up, gives excellent tool life with greater metal removal than rolling with less danger of secondary peeloff slivers. All our skiving equipment will operate in the burnishing mode as an alternative to direct cutting.

D. The forth alternative is edge rolling. Rolling operates at any speed, is less costly than skiving or burnishing and is easier to set up. Rolls last longer than tools and require minimal maintenance.

Disadvantages of rolling are: Edges can work harden; edges thicken which may require removal by secondary rolling causing more hardening; there is a tendency to shed slivers with various materials. Rolling can induce camber unless accurately aligned with adjacent line hardware. We recommend mounting heavy rolling type edgers on side to side linear bearings to enable automatic alignment with the material path, which can vary in many lines.