Friction Stir Welding Tool Hot Cool Air Separation
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Solution Overview
Problem
Existing friction stir welding techniques require separate cooling and heating agents, leading to increased installation costs due to the need for additional equipment and resources.
Innovation Solution
A friction stir welding apparatus that incorporates a hot air and cool air separating unit to generate both hot and cool air from a single gas supply, allowing for simultaneous heating or cooling of the work piece without the need for separate heating or cooling means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If separate cooling agents and heating means are used, then the work piece can be cooled and pre-heated, but the installation cost increases
Solution Approach 1:
The patent combines separate cooling and heating systems into a single integrated tool that uses friction stir welding to generate both heating (at the front of the tool) and cooling (at the rear of the tool) simultaneously. This merging eliminates the need for separate cooling agents and heating means, thereby reducing installation cost while maintaining temperature control capability
Solution Approach 2:
The friction stir welding tool is designed to perform multiple functions: it simultaneously heats the work piece at its front end and cools it at its rear end. This multi-functionality allows a single device to replace what would traditionally require separate cooling and heating equipment, reducing overall system complexity and installation cost
2Temperature
If separate cooling means and heating means are used, then the work piece can be cooled and pre-heated, but the equipment quantity increases
Solution Approach 1:
The patent merges separate cooling and heating equipment into a single friction stir welding tool. The tool integrates both cooling functionality (rear end) and heating functionality (front end), thereby reducing the total equipment quantity from multiple separate devices to one unified device
Solution Approach 2:
The friction stir welding tool is designed as a universal device that performs both heating and cooling operations simultaneously on the work piece. This multi-functional design eliminates the need for multiple specialized equipment pieces, reducing equipment quantity while maintaining comprehensive temperature control
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 reduces installation costs by enabling efficient and economical heating or cooling of the work piece during friction stir welding, improving the process by eliminating the need for additional equipment and simplifying the setup.
Implementation Method 1
a vortex flow generating portion which is connected to the other end of the tube portion and rotates the gas supplied from the outside in a vortex shape
Implementation Method 2
rotates the gas supplied from the outside in a vortex shape so as to be sent to one end side inside the tube portion
Implementation Method 3
a tool is rotated while a surface called a shoulder surface of the tool is pressed with a predetermined pressure against a welding position of the work piece so as to generate friction heat in the surface of the work piece
Data Source
AI summary
A friction stir welding includes a main body for holding a tool and a hot air and cool air separating unit. The separating unit is disposed at the main body and separates a supplied gas into hot air hotter than the gas and cool air cooler than the gas in a tube portion and ejects the cool air from a first end of the tube portion and ejects hot air from a second end of the tube portion. The hot air is supplied to a front side of a movement direction of the tool in the surface of the work piece from a tool side of the friction stir welding apparatus and the cool air is supplied to a rear side of the movement direction of the tool in the surface of the work piece from the tool side of the friction stir welding apparatus.