Configurable Casting End-Effector for In-Situ Solidification Control
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Solution Overview
Problem
Traditional casting processes face challenges in incorporating multiple functionalities during the ablation solidification process without moving the core package or mold, limiting the ability to enhance alloy properties and surface finish.
Innovation Solution
A configurable end-effector with modules for ablating, cooling, vacuum/airflow, energy, sensing, and supply/cutting functions, allowing for in-situ manipulation of the casting process to improve alloy properties and surface finish without moving the mold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the mold is moved to incorporate other steps during the casting process, then additional functionality can be performed, but the core package or mold must be relocated which complicates the process
Solution Approach 1:
The end-effector is designed as a multi-functional device that integrates ablation, cooling, heating, sensing, and other processing capabilities in a single tool. This allows the end-effector to perform multiple functions on the casting process without requiring movement of the core package or mold, thereby resolving the contradiction by achieving versatility while maintaining process simplicity
Solution Approach 2:
The end-effector is divided into separate functional modules (ablation module, cooling module, heating module, sensing module, etc.) that can be independently controlled and activated. This segmentation allows each function to be performed independently without requiring movement of the mold, enabling additional functionality while maintaining process complexity at acceptable levels through modular design
2Productivity
If traditional casting processes are used, then the process is simple, but the cooling rate is slow and the microstructure is coarser
Solution Approach 1:
The cooling process is applied locally and selectively through the end-effector modules that can be positioned at specific locations on the mold. Different regions of the mold can receive different cooling rates and treatments, allowing control over the microstructure quality while maintaining high overall cooling rates, thus resolving the contradiction between productivity and manufacturing precision
3Adaptability or versatility
If multiple functional modules are integrated into the end-effector, then additional processing steps can be performed without moving the mold, but the end-effector complexity increases
Solution Approach 1:
The end-effector integrates multiple functional modules (ablation, cooling, heating, sensing, cutting) into a single versatile device that can perform various processing steps without moving the mold. This multi-functionality approach allows additional processing capabilities while the modular design helps manage the complexity by organizing functions into independent, controllable units
Solution Approach 2:
The end-effector modules are designed to be dynamically controllable, where each module can be activated or deactivated based on the specific processing requirements. This dynamic control allows the system to adapt to different casting scenarios and reduces the effective complexity by only activating necessary modules for each specific task
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
The end-effector enables faster cooling times, finer microstructure, reduced porosity, improved ductility, and enhanced surface finish, achieving properties comparable to forged alloys with lower production costs.
Implementation Method 1
The direct contact of the ablating medium and the conversion of state by the ablating material maximizes heat flow from the alloy metal, greatly increasing the rate of removal of the latent heat of solidification and cooling of the alloy metal
Implementation Method 2
a molten alloy metal is poured into a mold and solidifies, or freezes, through a loss of latent heat of solidification to the mold
Implementation Method 3
Ablation refers to the removal of an aggregate mold by an erosion process in which the application of an ablating medium (e.g., a fluid) causes the aggregate to disintegrate to grain size
Implementation Method 4
the use of a solute, such as one containing water, as the ablating medium, which can be endothermic to thereby enable cooling by the ablating medium
Implementation Method 5
The end-effector may incorporate one or more vacuum and/or airflow modules that can be used to remove the ablate (or ablating) material and/or cooling fluid by either a suction or pulling force (e.g., a vacuum)
Implementation Method 6
The end-effector may incorporate one or more vacuum and/or airflow modules that can be used to remove the ablate (or ablating) material and/or cooling fluid by either a suction or pulling force (e.g., a vacuum) or a pushing force (e.g., an airflow)
Data Source
AI summary
A configurable end-effector is provided for a robotic system used in a casting process. The end-effector can have one or more ablate and/or cooling modules that can apply an ablating material and/or cooling fluid to a mold for the solidification or the solid to solid transformation of the metal component of the part to be cast or formed in the mold or tooling. The end-effector may incorporate one or more air push or vacuum modules that can be used to remove or move the ablate material phase state change and/or the cooling fluid after the ablate material and/or cooling fluid absorbs heat from the part. The end-effector can include one or more energy modules that can be used to introduce heat to the mold and/or tooling and the formed component part so that additional processes can be performed on the component part. The end-effector may have one or more sensing modules that can determine the temperature and location of the part and then provide that information to a controller to control the operation of the various energy modulus that control energy extraction or cooling and input energy to offset any energy loss to the system prior, during, or thereafter a state change occurs of the component material within the ablate mold and tooling both in liquid and solid conditions or with various solid fraction of the cast material.