Window Leaf Profile Machining for Adhesive Bonding
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Solution Overview
Problem
The bonding of window leaf frames to panes using wet adhesives is complex and uneconomical, especially for smaller companies, due to the need for precise environmental conditions and accurate metering, which is difficult to achieve manually and costly with existing systems.
Innovation Solution
A method involving machining a workpiece to a final dimension before adhesive application, allowing for automated and simplified bonding by applying adhesive to a pre-machined surface, with subsequent machining of remaining surfaces to avoid damaging the adhesive, using a combination of planing/milling machines and automated adhesive application devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wet adhesive is applied directly to the leaf profile, then bonding can be achieved, but the process becomes complex and uneconomical due to requirements for precise environmental conditions and accurate metering
Solution Approach 1:
The adhesive application surface is prepared in advance by machining it to final dimension before adhesive application. This preliminary action ensures the surface is ready for bonding without requiring complex environmental controls or precise metering systems during the bonding process itself, thereby simplifying the overall manufacturing process.
Solution Approach 2:
Instead of using complex automated adhesive application systems that require precise environmental control, the patent uses adhesive tape as a simple copy or alternative solution that achieves the same bonding function without the complexity of metering systems and environmental monitoring equipment.
2Ease of manufacture
If adhesive tape is applied to raw wood material, then bonding can be achieved, but additional machining operations are required to create a suitable surface
Solution Approach 1:
The adhesive application surface is machined to final dimension before adhesive application. This preliminary machining action creates a ready-to-bond surface without requiring additional machining operations after adhesive application, thereby maintaining manufacturing efficiency while simplifying the bonding process.
3Manufacturing precision
If the workpiece is machined after adhesive application, then remaining surfaces can be finished, but the applied adhesive may be damaged
Solution Approach 1:
The adhesive application surface is machined to final dimension before adhesive application, and this surface is not subjected to further machining. This preliminary action ensures the adhesive remains intact while other surfaces are finished subsequently, maintaining both adhesive integrity and surface finish quality.
Data Source
AI summary
The invention relates to a method for machining a workpiece, in particular for a profiled leaf element of a window leaf frame, wherein the workpiece is initially machined using a first machining device in order to create a machined first surface to which an adhesive tape is to be applied, and the workpiece is further machined once the adhesive tape has been applied.