Modular Shielding Device for Circuit Board Austenitizing
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Solution Overview
Problem
The existing shielding devices for circuit boards require complex and costly adaptation to achieve optimal geometry, leading to time-consuming and expensive post-processing, as well as the need for individually tailored devices for each product with different strength areas, due to the challenges of maintaining temperature uniformity and strength variations during heat treatment.
Innovation Solution
A modular shielding device composed of multiple parts, where additional shielding parts can be detachably and adjustably attached to achieve optimal geometry, allowing for flexible adaptation and easy reworking without removing the entire device from the oven, enabling precise adjustment and replacement of parts to meet target tolerance ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a shielding device is manufactured with an allowance and post-processed in several passes to achieve optimal geometry, then the shielding geometry can be optimized to meet tolerance ranges, but the production time and costs increase significantly
Solution Approach 1:
The shielding device is divided into a first shielding part and a second shielding part that can be detached from each other. The second shielding part can be separately post-processed without removing the entire device from the oven, enabling parallel processing and reducing total production time while maintaining geometric precision.
Solution Approach 2:
The second shielding part is pre-mounted in a rough position on the first shielding part during initial manufacturing. This allows the basic structure to be established early, and only the second part requires subsequent post-processing to achieve final precision, reducing the number of iterative passes needed.
2Manufacturing precision
If a shielding device is manufactured with an allowance and requires multiple post-processing passes, then optimal shielding geometry can be achieved, but the production costs increase due to repeated removal, clamping, and processing
Solution Approach 1:
By segmenting the shielding device into detachable parts, only the second shielding part needs to be post-processed. This eliminates the need to repeatedly remove, clamp, and process the entire expensive first shielding part, significantly reducing labor and equipment costs while maintaining geometric precision.
Solution Approach 2:
The second shielding part is designed as a disposable or easily replaceable component that can be post-processed and discarded if needed. This allows aggressive post-processing of a cheaper part rather than preserving and repeatedly handling a more expensive first shielding part.
3Manufacturing precision
If an individually adapted shielding device is manufactured for each product, then optimal shielding geometry can be achieved for specific products, but the device complexity and manufacturing requirements increase
Solution Approach 1:
The shielding device is segmented into a universal first shielding part that can be used across multiple products and a customizable second shielding part that is adapted to specific product requirements. This reduces overall device complexity by separating the common infrastructure from the product-specific adaptations.
Solution Approach 2:
The first shielding part is designed as a universal component that can serve multiple products. Only the second shielding part needs to be customized for each specific product application, reducing the need to manufacture entirely new shielding devices for different products and simplifying the overall system complexity.
4Ease of manufacture
If the entire shielding device must be removed from the oven for post-processing, then edge reworking can be performed, but the productivity decreases due to repeated handling and processing cycles
Solution Approach 1:
The shielding device is segmented into detachable parts, allowing the second shielding part to be removed and post-processed independently while the first shielding part remains in the oven. This eliminates repeated handling of the entire device and enables parallel processing operations, significantly improving productivity while maintaining edge reworking capability.
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 significantly reduces production costs and time by allowing quick and inexpensive adaptation of the shielding geometry, enabling efficient production of metal components with areas of different strengths without the need for new shielding devices in case of material removal errors, and facilitates flexible use across various products.
Implementation Method 1
at least a partial area of the circuit board being shielded by the shielding device against further heat application
Data Source
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AI summary
Shielding device (1) for covering at least a partial area of a circuit board (2) during tempering of the circuit board (2) in an oven, wherein the shielding device (1) and a circuit board (2) heated to approximately austenitizing temperature are arranged in the oven and at least a partial area of the circuit board (2) is shielded against further heat exposure by the shielding device (1), wherein the unshielded area of the circuit board (2) is kept at or heated to austenitizing temperature by the heat exposure in the oven, wherein the shielding device (1) is multi-part and consists of at least a first shielding part (3, 3'), as well as at least a second shielding part (4, 4') and/or further shielding part (5, 5') which complements the first shielding part (3, 3') to form the complete shielding part (3, 3'), which is detachably and/or adjustably attached to the first shielding part (3, 3') to achieve an optimal shielding geometry.wherein in a predetermined position of the second shielding part (4,4') and/or the further shielding part (5,5') the predetermined partial area of the circuit board (2) is covered.