Cast Part Identification via Segmented Insert
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Solution Overview
Problem
Existing methods for providing legible information on cast parts are limited, especially in modern casting processes where open casting molds are not feasible, and identification elements are often lost during the cleaning process, which hinders traceability and process optimization.
Innovation Solution
A method involving an identification element with information on two surfaces, where one surface is exposed to the molten metal during casting, creating a form-fitting or material bond with the cast part, while the other surface remains sealed and legible, allowing permanent and clear identification of the cast part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a code carrier is poured into the feeder or molded element for casting identification, then the code carrier is inextricably linked to the cast blank and information can be recorded automatically, but the unambiguous identification is lost again during cleaning when form elements are separated from the cast part
Solution Approach 1:
The identification element is segmented into two distinct surfaces: a first surface with information that remains protected during cleaning, and a second surface that contacts the molten metal to create the negative image. This segmentation allows the information-bearing surface to be preserved while the casting process continues.
Solution Approach 2:
The identification element is preliminarily positioned in the casting mold before the casting process begins. The information is pre-formed on the first surface, and the element is arranged so that during cleaning, this protected surface remains shielded by the casting itself, preventing information loss.
2Ease of manufacture
If a label is placed on the surface of the still flowable melt immediately after casting, then the label floats and adheres firmly to the cast part after solidification, but a larger surface section of the melt must be freely accessible requiring an open casting mold which is not possible with many modern casting processes
Solution Approach 1:
The identification element is prepared in advance with information on its first surface and is preliminarily positioned in the casting mold before pouring. This eliminates the need for post-casting label application and allows use with closed casting molds, greatly improving adaptability to modern casting processes.
Solution Approach 2:
The identification element serves as an intermediary between the information to be recorded and the cast part. It is positioned in the mold cavity and contacted by molten metal, which transfers the information as a negative image while the element itself remains protected during cleaning.
3Manufacturing precision
If laser is used to insert a casting core into a casting mold for molding cavities to provide negative image of characters on cast body, then clear individualization of cast part with required depth of detail is achieved, but the process is complex and time-consuming
Solution Approach 1:
Instead of using complex laser equipment to directly create characters on the cast part, the invention uses a simple identification element with pre-formed information that is copied onto the cast part as a negative image through contact with molten metal. This greatly simplifies the equipment while maintaining clear individualization.
Solution Approach 2:
The information transfer process changes from direct laser writing to indirect negative image formation through molten metal contact. This parameter change in the information transfer mechanism simplifies the device while achieving the same goal of clear cast part identification.
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
Enables permanent and clear identification of cast parts, even after cleaning and post-processing, ensuring traceability and process optimization by maintaining legible information on the cast part surface.
Implementation Method 1
Pouring a molten metal into the casting mold with wetting of the cast part surface of the identification element with molten metal
Data Source
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AI summary
By means of the method according to the invention, cast parts (G1,G2) that are permanently provided with legible information (IG1,IG2) can be produced. For this purpose, an identification element (11,20), which, on one side, has an information surface (15,22) that is provided with information (11,12), and, on another side, has a cast part surface (14,21) that is associated with the cast part (G1,G2) and is likewise provided with information (11,12), is arranged on a casting mould surface (10) that is associated with a mould cavity (7) of a casting mould, the identification element being arranged in such a way that the information surface (15,22) is covered, while the cast part surface (14,21) of the identification element (11,20) is exposed in the mould cavity (7). Next, a metal melt (M) is poured into the casting mould (1), wetting the cast part surface (14,21), such that during the pouring or the solidification of the metal melt (M), a bonded, interlocking or frictional connection of the identification element (11,20) to the cast part (G1,G2) is produced and the information (11,12) provided on the cast part surface (14,21) is represented on the associated surface (18) of the cast part (G1,G2) in the form of a stamp. Finally, the cast part (G1,G2) is removed from the casting mould (1) and trimmed in the conventional manner.