Laser Cutting Path Layout for Notch Scrap Interference
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Solution Overview
Problem
During laser processing of a product with a notch, the scrap cut off from the inner side of the notch can get caught between skids and interfere with the processing head, leading to potential processing failures.
Innovation Solution
A laser processing path laying-out method that includes laying out an open path within the laser processing path for cutting the product, excluding the line segment of the notch in the outer peripheral end portion, and coupling this with an outer peripheral path obtained by combining a first outer peripheral processing path for cutting the line segment of the notch and a second outer peripheral processing path for cutting other parts of the outer peripheral end portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the laser processing path cuts off the notch from the workpiece first, then the notch is completely separated from the product, but the scrap may get caught between skids and interfere with the processing head
Solution Approach 1:
The processing path is segmented into two distinct parts: an open path that cuts into the notch without completing the separation, and an outer peripheral path that processes the remaining workpiece. This segmentation prevents the scrap from being completely cut off and caught between skids, while still achieving the necessary notch formation.
Solution Approach 2:
The open path performs a preliminary cutting action that creates the notch shape without completing the full separation. By leaving the line segment uncalled, the scrap remains attached to the workpiece and can be properly supported by the skids, preventing interference with the processing head during subsequent operations.
2Productivity
If the processing head moves above the workpiece to cut the outer peripheral end portion, then the product is cut out from the workpiece, but the processing head may interfere with the scrap produced by cutting off the notch
Solution Approach 1:
The processing path is divided into an open path for notch formation and an outer peripheral path for product separation. This segmentation ensures that the scrap from notch cutting does not interfere with the processing head during outer peripheral cutting, maintaining productivity while avoiding harmful interference.
Solution Approach 2:
The open path acts as an intermediary that creates the notch without completely separating the scrap. This intermediate state allows the scrap to remain in a controlled position that does not interfere with subsequent processing head movements, enabling smooth continuation of the cutting operation.
3Manufacturing precision
If the laser processing path includes a complete notch cutting path, then the notch is fully separated, but the scrap may rise higher than the workpiece and cause interference
Solution Approach 1:
The complete notch cutting path is segmented into an open path that stops before full separation. This prevents the scrap from rising higher than the workpiece and causing operational difficulties, while still achieving the required notch geometry for product design.
Solution Approach 2:
Instead of performing the complete notch separation action, the open path performs a partial cutting action that achieves the necessary notch formation without fully detaching the scrap. This partial action maintains processing smoothness by preventing scrap interference while still meeting the functional requirements of the notch.
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
This method effectively suppresses interference between the processing head and the scrap produced by cutting off the notch, preventing processing failures and ensuring smooth laser processing.
Implementation Method 1
irradiating, when cutting out a product including a notch at an outer peripheral end portion thereof by laser processing from a workpiece supported by a skid, the workpiece with a laser beam along an open path as a partial processing path in a notch formation processing path for forming the notch
Implementation Method 2
irradiating, before or after cutting the open path in the workpiece, the workpiece with a laser beam along an outer peripheral path obtained by coupling a first outer peripheral processing path and a second outer peripheral processing path, thereby cutting the outer peripheral path in the workpiece
Data Source
AI summary
A laser processing path laying-out method includes laying out, to a part of a notch of nesting data, as a partial processing path in a notch formation processing path, an open path for cutting to an inner side of a product, excluding a line segment of the part of the notch in an outer peripheral end portion of the product. The laser processing path laying-out method further includes laying out an outer peripheral path obtained by coupling a first outer peripheral processing path for cutting a line segment of the part of the notch in the outer peripheral end portion, which is a remaining partial processing path in the notch formation processing path, and a second outer peripheral processing path for cutting at least a part of a line segment other than the part of the notch in the outer peripheral end portion.