The Boeing Company has secured a major milestone in manufacturing with a newly patented tool design and toolpath generation module. This innovation focuses on U.S. Patent titled Forming stylus tool design and toolpath generation module for 3 axis computer numerical control manufacturing processes. The patent describes an advanced toolpath generation method for smooth convex axisymmetric tools used in metal pressing and milling.

Optimizing Computer Numerical Control Processes

Patent Abstract: A method of toolpath generation is provided whereby the tool may be any smooth convex axisymmetric shape. The tool includes a tool body extending between a shank and a head. The shank is configured to be mounted in a collet which may optionally rotate. In the case of a stylus tool, the head has an axisymmetric forming surface used to press metal. In the case of a routing tool, the head has cutting surfaces which are enveloped by a smooth convex axisymmetric surface and the tool is used for milling a part. In a least one embodiment the tool is a stylus tool which has a forming surface that has been generated from a portion of a clothoid curve.

Swanson Reed Patent of the Month Recognition

The Boeing Company has achieved a significant milestone in advanced manufacturing by securing the Swanson Reed patent of the month for May 2026. This prestigious recognition highlights the groundbreaking tool design and toolpath module within the Manufacturing industry. By providing a method of toolpath generation compatible with any smooth convex axisymmetric shape, this invention resolves long standing limitations in traditional three axis computer numerical control manufacturing.

The technical excellence of this patent lies in its unique mathematical and geometric approach to tooling. In at least one embodiment, the stylus tool features a forming surface generated from a portion of a clothoid curve, which optimizes the distribution of mechanical pressure when forming sheet metal. Whether applied to a stylus tool for pressing metal or a routing tool for milling components, the smooth convex profile ensures superior surface finish quality and minimizes tool wear during high stress manufacturing cycles.

This invention represents an outstanding advancement because it bridges the gap between complex geometric designs and standard machining infrastructure. By enabling existing three axis computer numerical control systems to utilize advanced axisymmetric forming surfaces with precise toolpath generation, Boeing eliminates the immediate need for more expensive multi axis equipment for specific component fabrications. The recognition from Swanson Reed underscores how this software and hardware integration sets a new standard for precision, efficiency, and cost effectiveness in aerospace and industrial manufacturing.

United States Research and Development Tax Credit Compliance

The technological advancements achieved by The Boeing Company align perfectly with the guidelines established for the federal research and development tax credit in the United States. To qualify for this incentive, a project must satisfy a rigorous four part test defined under Section 41 of the Internal Revenue Code. This manufacturing technology satisfies each prong through its systemic resolution of engineering uncertainties.

• Permitted Purpose: The project involves developing a new or improved business component, specifically an advanced computer numerical control toolpath generation module and geometric stylus tool design to improve manufacturing performance.
• Elimination of Uncertainty: The engineering team faced substantial technical uncertainty regarding how to generate accurate toolpaths for arbitrary smooth convex axisymmetric shapes and how to implement clothoid curves to optimize metal pressing forces.
• Process of Experimentation: The developers engaged in a systematic process of experimentation, including computer aided design modeling, algorithmic simulations of toolpaths, and empirical testing of physical stylus tools on sheet metal.
• Technological in Nature: The research and development activities rely fundamentally on core engineering and scientific principles, including mechanical engineering, computational mathematics, and computer science.

Practical Research and Development Tax Credit Applications

In the context of American innovation incentives, specific engineering workflows qualify as research expenditures. The following three scenarios demonstrate how this patent translates into qualified research activities:

1. Developing and Validating Clothoid Toolpath Algorithms: Programming and testing mathematical software modules that compute optimal contact points for a clothoid based stylus tool during three axis manufacturing operations.
2. Prototyping Advanced Axisymmetric Routing Tools: Designing and physical prototyping of routing tools with cutting surfaces enveloped by a smooth convex axisymmetric surface to evaluate chip clearance and thermal dissipation.
3. Simulating Structural Stress During Metal Pressing: Executing finite element analysis and physical stress testing to determine how the axisymmetric forming surface reduces micro cracking in formed aluminum or titanium alloy sheets.