Reactive Bonding for Interpenetrating Assembly
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Solution Overview
Problem
Existing methods for bonding objects using thermoplastic materials are energy-intensive, limit material choices, and make disassembly and recycling difficult due to the interpenetration of materials.
Innovation Solution
A method involving a non-thermal shaping process to create a modified compound that can be made flowable by energy input, allowing it to interpenetrate structures of another object for bonding, without requiring heating and using environmentally friendly compositions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermoplastic materials are used for bonding objects through high-temperature processes, then reliable bonding is achieved, but energy consumption increases and material choices are limited
Solution Approach 1:
The invention changes the temperature parameter from high-temperature thermoplastic bonding to low-temperature or room-temperature reactive bonding. The flowable compound undergoes a hardening reaction that changes its chemical composition, enabling bonding without the high temperatures required for thermoplastic materials, thus reducing energy consumption while maintaining bonding reliability
Solution Approach 2:
The invention utilizes a phase transition approach where a flowable compound (liquid state) is shaped and then undergoes a hardening reaction to transition to a hardened state (solid). This phase change from liquid to solid through chemical reaction enables reliable bonding at lower temperatures compared to thermoplastic melting and solidification processes
2Productivity
If thermoplastic materials are used for bonding objects, then quick manufacturing is achieved, but disassembly and recycling become difficult
Solution Approach 1:
The invention enables recovery and recycling of bonded objects by using reactive bonding materials that can be broken down or reversed. The flowable compound and hardened article can be separated from bonded objects, allowing for disassembly and recycling processes that are not feasible with permanent thermoplastic bonds, thus improving ease of manufacture for future production cycles
3Manufacturing precision
If thermoplastic materials are shaped in high-temperature processes, then material availability is limited, but shaping precision is achieved
Solution Approach 1:
The invention changes the processing temperature parameter from high-temperature thermoplastic shaping to low-temperature or room-temperature reactive shaping. This enables the use of a broader range of materials including fillers and environmentally friendly compositions that cannot withstand high temperatures, expanding material availability while maintaining shaping precision through the flowable compound's moldability before hardening
Solution Approach 2:
The invention utilizes composite materials by combining a flowable compound with filling materials and other additives to create a hardened article with desired properties. This composite approach allows selection of materials based on their individual properties rather than requiring all materials to withstand high-temperature processing, thus expanding material availability and versatility
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 method enables efficient bonding of objects with reduced energy consumption, broader material choices, and improved recyclability by using a flowable compound that interpenetrates structures without high-temperature processes.
Implementation Method 1
the compound is subject to a hardening reaction that results in a change of the chemical composition of the flowable compound
Implementation Method 2
a flow portion of the hardened article of the modified compound is made flowable by an input of energy
Implementation Method 3
generating an interpenetration zone of the flow portion and structures of the second object
Data Source
AI summary
A method of manufacturing and assembling a first and a second object wherein the first object is made by bringing a flowable compound into a first object shape and then subjecting the flowable compound to a hardening process that results in a change of a chemical composition of the flowable compound, thereby creating the first object or a part thereof. Then, the first object is positioned relative to a second object, and a flow portion of the hardened article of the modified compound is caused to become flowable by an input of energy. An interpenetration zone of the flow portion and structures of the second object is created, and the flow portion is allowed to re-solidify, whereby the interpenetration zone between the re-solidified flow portion and the structures of the second object secures the first and second objects to each other.