Feeder Insert Deformation Region for Casting Mold Compaction
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Solution Overview
Problem
Existing feeder inserts for metal casting molds face challenges in withstanding high compaction pressures and preventing mold material or feeder material from penetrating into the casting cavity, which can lead to usability issues and potential fracture.
Innovation Solution
The supply element of the feeder insert features a deformation region that inverts during relative movement with the mold body, allowing it to absorb compaction forces and maintain a secure connection, reducing the risk of material penetration and fracture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the mold body is made movable relative to the supply element to absorb compaction pressures, then the feeder insert can withstand high compaction forces, but material penetration into the casting cavity and abrasion may occur through the gap
Solution Approach 1:
The supply element incorporates a deformation region that can dynamically change shape during the compaction process. This dynamic deformation allows the supply element to absorb compaction forces through controlled material flow and shape change, eliminating the need for a gap between mold body and supply element, thereby preventing material penetration while maintaining strength under pressure
Solution Approach 2:
The deformation region of the supply element changes its geometric parameters (shape, volume) in response to applied compaction pressure. This parameter change enables the supply element to adapt to high pressure conditions by deforming in a controlled manner, absorbing the compaction forces without creating gaps that would allow material penetration
2Adaptability or versatility
If a gap is provided between mold body and supply element to ensure displaceability, then relative movement is enabled, but material may pass through the gap under high compaction pressure
Solution Approach 1:
The deformation region provides dynamic adaptability, allowing the supply element to move and deform relative to the mold body during compaction. This dynamic response enables the system to maintain displaceability while the deformation region closes any gaps that form, preventing material penetration under high pressure conditions
Solution Approach 2:
The deformation region acts as an intermediary between the rigid mold body and supply element. It mediates the relative movement and compaction forces by deforming in a controlled manner, absorbing the displacement while maintaining sealing to prevent material penetration through the interface
3Strength
If the supply element is rigid to maintain structural integrity, then fracture resistance is improved, but compaction forces cannot be absorbed effectively
Solution Approach 1:
The supply element is segmented into a rigid portion and a deformation region. The rigid portion maintains structural integrity and fracture resistance, while the deformation region absorbs compaction forces through controlled shape change. This segmentation allows the supply element to simultaneously achieve fracture resistance and compaction force absorption
Solution Approach 2:
Different regions of the supply element have different mechanical properties. The rigid portion has high strength and fracture resistance, while the deformation region has lower rigidity to allow controlled deformation. This local quality differentiation enables the supply element to absorb compaction forces without compromising overall structural integrity
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 design effectively absorbs compaction forces, reduces the risk of material penetration, and ensures the feeder insert remains functional even under high pressure conditions, enhancing the reliability and productivity of the casting process.
Implementation Method 1
The supply element has a deformation region which is designed to invert at least in sections in at least a first phase of a relative movement of the mold body in the feeder longitudinal direction and in the direction of the supply element
Implementation Method 2
at least a part of the feeder insert is composed of an insulating and/or exothermic material, wherein the exothermic material is ignited as a result of the introduction of liquid metal owing to the temperatures prevailing in the process. An exothermic reaction then self-evidently takes place within the feeder insert, by means of which exothermic reaction the metal situated in the feeder has heat energy supplied to it
Data Source
AI summary
A feeder insert for use for the casting of metals into casting molds, having a mold body (6) and a supply element (4) which delimit the feeder cavity (10) for receiving liquid metal, wherein the supply element (4) has a passage opening (26) for the liquid metal, and wherein the mold body (6) is movable in a feeder longitudinal direction relative to at least one part of the supply element (4), characterized in that the supply element (4) has a deformation region which is designed to trim in at least in sections in at least a first phase of a relative movement of the mold body (6) in the feeder longitudinal direction and in the direction of the supply element (4).