Cut Edge Shaping Paths for Bevels Without Multi-Axis Torches
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Solution Overview
Problem
Existing material processing systems, such as plasma arc and laser cutting systems, require complex multi-axis bevel torches and secondary work to achieve beveled or chamfered edges, leading to inefficiencies and increased costs, and right-angled edges are difficult to paint and prone to failure.
Innovation Solution
A method and system using a simple X-Y cutting table with controlled processing head motion and adjusted operation parameters to achieve beveled and chamfered edges without complex components, employing plasma arcs, laser beams, or waterjet streams in multiple passes to shape the edge profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multi-axis bevel torches are used to achieve beveled edges, then the edge shaping capability is improved, but the device complexity and cost increase significantly
Solution Approach 1:
Instead of tilting the torch to create beveled edges, the invention positions the torch vertically (normal to the workpiece surface) and moves the torch laterally across the edge during cutting. This inverts the conventional approach by achieving edge angle control through motion path rather than torch orientation, thereby simplifying the torch design while maintaining bevel capability
Solution Approach 2:
The invention replaces complex mechanical torch tilting mechanisms with a simpler system that uses controlled lateral motion of the vertically-positioned torch. The edge angle is achieved through the interaction between the vertical torch and the programmed motion path, eliminating the need for complex articulated or bevel torch mechanisms
2Manufacturing precision
If secondary work such as grinding is used to achieve beveled edges, then the edge quality is improved, but the productivity decreases due to additional processing steps
Solution Approach 1:
The invention merges the cutting operation with the edge shaping operation into a single process step. By programming the torch to move laterally across the edge during cutting, the system simultaneously performs both the separation cut and the bevel/chamfer creation, eliminating the need for separate secondary grinding or machining operations
Solution Approach 2:
The desired edge profile (bevel or chamfer) is created during the initial cutting operation itself, before any secondary processing is needed. The lateral motion path is programmed in advance to pre-form the edge at the correct angle, so that when the part is removed from the workpiece, it already has the required edge geometry for welding or painting
3Ease of manufacture
If right-angled edges are produced by standard cutting, then the cutting process is simple, but the paintability and structural integrity deteriorate due to sharp corners
Solution Approach 1:
The invention introduces dynamic motion control during the cutting process, where the torch lateral position is continuously adjusted according to a programmed path. This dynamic motion allows the system to produce different edge profiles (straight, beveled, chamfered) from a standard vertical torch, transforming the static cutting process into a dynamic edge-forming operation that eliminates sharp corners while maintaining cutting simplicity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Efficiently produces consistent beveled and chamfered edges with minimal secondary work, reducing costs and improving paintability, using standard equipment and processes.
Implementation Method 1
a plasma arc torch system generally includes a processing head comprising a plasma arc torch head... In operation, the plasma arc torch produces a processing stream comprising a plasma arc, which is a constricted jet of an ionized gas with high temperature and sufficient momentum
Implementation Method 2
a plasma arc, which is a constricted jet of an ionized gas with high temperature... to assist with removal of molten metal
Implementation Method 3
laser processing systems... include various consumable components that are used to operate their respective processing devices... for delivering processing streams (e.g., water jet streams or laser streams) to process workpieces
Implementation Method 4
water jet processing systems... for delivering processing streams (e.g., water jet streams)... to process workpieces
Data Source
AI summary
A computer-implemented method is provided for shaping an edge of a part to be cut from a workpiece using a material processing system comprising a processing head configured to deliver a processing stream. The method includes calculating a start point and an end point of a shaping path proximate to the edge of the part based on a desired edge profile and determining a set of operating parameters to controllably impinge the processing stream about the edge of the part to execute the shaping path from the start point to the end point. The method further includes positioning the processing head normal to a surface of the part and controllably impinging the processing stream at the edge of the part, by the processing head, to shape the desired edge profile.