Fine Blanking Lubrication Through the Cutting Gap
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Solution Overview
Problem
Existing fine cutting processes face inefficiencies in lubricant application, leading to high lubricant consumption and uneven distribution, as lubricant is applied to the entire starting material before cutting, rather than specifically to the active cutting zone.
Innovation Solution
The lubricant is fed through the cutting plate between the cutting plate and counter holder, allowing it to be applied directly to the cutting gap and active zone, reducing unnecessary lubricant distribution and consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lubricant is applied to the entire starting material before cutting, then the cutting zone is lubricated, but lubricant consumption increases and distribution becomes uneven
Solution Approach 1:
The patent applies lubricant locally only to the cutting gap between the cutting plate and counter-holder, rather than uniformly across the entire starting material. This is achieved by introducing lubricant through channels or openings in the cutting plate that deliver it precisely to the cutting zone, thereby reducing overall lubricant consumption while ensuring adequate lubrication where needed.
Solution Approach 2:
The cutting plate serves as an intermediary device that facilitates lubricant delivery to the cutting zone. By incorporating channels, openings, or grooves in the cutting plate, the system mediates between the lubricant supply source and the cutting gap, enabling precise and controlled lubricant application directly at the cutting interface.
2Reliability
If lubricant is applied to the entire starting material, then coverage is achieved, but application complexity and time increase
Solution Approach 1:
The lubricant application system is simplified by focusing lubricant delivery only on the cutting gap rather than attempting to cover the entire starting material surface. This localized approach reduces the complexity of the application system while achieving reliable lubrication coverage where it is most critical.
3Force
If lubricant is applied broadly, then friction reduction is achieved, but surface quality deteriorates due to excess lubricant
Solution Approach 1:
By delivering lubricant locally and precisely to the cutting gap through the cutting plate structure, the system achieves adequate friction reduction in the cutting zone without applying excess lubricant to the workpiece surface. This controlled local application prevents surface quality deterioration while maintaining effective lubrication where needed.
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 approach ensures that lubricant is applied only where needed, reducing friction and improving surface quality during the fine cutting process, while minimizing lubricant usage and preventing excess distribution.
Implementation Method 1
lubricant is applied to the working zone between the cutting plate and the workpiece
Data Source
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AI summary
The invention relates to a method for fine blanking workpieces (3a) from a starting material (3) in a fine blanking press and a fine blanking press, wherein the starting material (3) is clamped between a punch guide plate (5) and a cutting plate (6) as well as between a punch (4) guided in the punch guide plate (5) and a counter-holder (7) guided in the cutting plate (6), and the unit of punch (4) and counter-holder (7) is moved relative to the unit of punch guide plate (5) and cutting plate (6), whereby the workpiece (3a) is displaced along the cutting gap (6a) formed between the cutting plate (6) and the counter-holder (7) relative to the starting material (3), in particular being separated from the starting material (3), wherein lubricant (13) is applied to the effective zone (18) between the cutting plate (6) and the workpiece (3a).wherein the lubricant (13) is supplied to the working zone (18) through the cutting gap (6a) between the cutting plate (6) and the counter holder (7).