Cutting tool assembly for use in controlled fracture machining

A cutting tool assembly for use in controlled fracture machining comprising:

• a body having a rectilinear shape with a top end and bottom end;
• a tool holder attached to the bottom end of the body using an attachment wedge, and where the tool holder includes a first slanted edge and second slanted edge both connecting to an angled edge, where the angled edge extends below the first slanted edge and second slanted edge and forms a curved shape;
• a first cutting tool is configured at one end of the angled edge to operate in a forward direction of movement and a second cutting tool is configured at the opposite end of the angled edge to operate in a reverse direction of movement;
• and
• wherein an upper portion of the tool holder has a first diameter and the lower portion of the tool holder has a second diameter for use in producing and impact force used to machine a bladed disc for use in a turbine engine using controlled fracturing processes.

A cutting tool assembly for use in controlled fracture machining to produce a bladed disc comprising:

• a body;
• a trapezoidal shaped tool holder attached to one end of the body that includes a first slanted edge and second slanted edge connecting an angled edge that extends below the first slanted edge and second slanted edge where the angled edge forms a curved shape;
• a first cutting tool and second cutting tool configured on opposite sides of the angled edge for use in moving in forward and reverse directions to produce a controlled fracturing, non-rotational impact force with workpiece material used to machine the bladed disc;
• and
• wherein the first cutting tool and second cutting tool are configured to move at a rate of motion of at least 1200 inches/minute such that workpiece material forming the bladed disc is micro-cracked using non-rotational controlled fracturing processes allowing the cutting tool to shear the workpiece material into a precision shape.