In many manufacturing and construction activities, it is frequently necessary to remove a protrusion of material from a component or from a substrate surface. These removal operations include clipping the head off a bolt, or removing a nut, rivet, weld bead, or temporary assembly alignment tab from a substrate surface of assembled components. These operations may be required during normal assembly, during demolition of equipment or facilities, or during product repair or manufacturing rework activities.
Various tools such as bolt cutters, chisels, drills, grinders, and acetylene torches are sometimes used for removal of a protrusion of material from a substrate surface. The application of power tools often results in one or more undesirable process characteristics, such as damaging the substrate surface due to excessive temperature or physical marring, or failing to remove all of the protrusion of material due to a mismatch between the cutting edge of the removal tool and the substrate surface. In addition, many power tools require more time to remove a protrusion than is economically desirable. Manually powered tools not only suffer from some of the same undesirable characteristics of powered tools, but also are generally limited to removal of small quantities of small protrusions because of the physical strength and endurance limits of an operator.
The Omni Jaw 5 Powered Protrusion Cutter (PPC) is a high-powered hydraulic tool that generates up to 5 tons of force on the cutting jaw. It consists of a 4140 steel alloy machined body and cutting jaw, S7 high-impact tool with steel machined cutting blades, stainless steel jaw guards and handle frame, ¼" Lexan transparent shield, and ultra alloy steel bolts (Figure 1).
The tool includes a shearing block with a shearing edge for engaging the material protrusion, and a cutting blade for clipping the material as the blade engages an opposing portion of the material. An electric trigger placed ergonomically on the handle actuates the device (Figure 2). The longer the momentary trigger is held open, the higher the force generated. This design allows the tool to use the minimum amount of power required to achieve the desired result. After the trigger is released, the system automatically resets and the cutting jaw returns to the open position. When used as a bolt cutter, the tool cuts and traps the bolt head to eliminate environmental and safety hazards.
The Omni Jaw 5 has applications in asbestos removal, equipment dismantlement, building demolition, ship deconstruction, and construction.
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