Composite C-Shape Fabrication Member With Segmented Thickness
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Solution Overview
Problem
Existing structural frame members, such as C-shape, U-shape, and Z-shape fabrication members, often consist of redundant material due to uniform thickness across both load-bearing and non-load-bearing areas, leading to inefficiencies in material usage and increased costs.
Innovation Solution
A method involving the use of coils with different planar members having varying mechanical properties to form composite structural frame members, where a thinner web member with distinct mechanical properties is used between two flange members, allowing for induction welding and cold-forming to create efficient shapes like C-shape, U-shape, or Z-shape, reducing material usage while maintaining load-bearing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single strip of raw material with uniform thickness is used to form structural frame members, then the manufacturing process is simple and continuous, but the structure contains redundant material in non-load-bearing areas leading to increased weight and cost
Solution Approach 1:
The structure is divided into multiple segments with different thicknesses: a first portion (flanges) with greater thickness for load-bearing functions, and a second portion (web) with lesser thickness for non-load-bearing functions. This segmentation allows each part to have the minimum necessary material for its specific function, eliminating redundancy while maintaining structural integrity.
Solution Approach 2:
Different portions of the structure are given different local qualities (thicknesses) according to their functional requirements. The flange portions have greater thickness to handle bending and axial loads, while the web portion has lesser thickness since it primarily transfers shear forces. This local differentiation optimizes material distribution throughout the structure.
2Ease of manufacture
If a single strip of raw material with uniform properties is used throughout the structure, then the material selection and processing is simplified, but material usage efficiency decreases due to redundancy in non-critical areas
Solution Approach 1:
The uniform material strip is segmented into different thickness portions during forming, creating a composite structure where the first portion has greater thickness and the second portion has lesser thickness. This allows efficient material usage in each region while maintaining a relatively simple single-material processing approach.
Solution Approach 2:
The structure implements local quality by varying the thickness of different portions to match their functional requirements. The flange portions receive greater material thickness for load-bearing capacity, while the web portion receives lesser thickness, optimizing material usage efficiency across the entire structure.
3Strength
If greater thickness is provided throughout the entire structure, then load-bearing capacity is maximized, but material cost and weight increase unnecessarily
Solution Approach 1:
The structure is segmented into load-critical flange portions and less load-critical web portions, with the former having greater thickness for maximum load-bearing capacity and the latter having lesser thickness to reduce weight. This segmentation ensures strength is maximized only where necessary.
Solution Approach 2:
Local quality is applied by providing greater thickness specifically at the flange portions where load-bearing capacity is most critical, while the web portion has lesser thickness. This targeted approach maximizes strength-to-weight ratio by concentrating material where it provides the most structural benefit.
4Weight of stationary object
If lesser thickness is used throughout the entire structure, then material cost and weight are reduced, but load-bearing capacity becomes insufficient
Solution Approach 1:
The structure is segmented into two portions with different thicknesses: the first portion (flanges) with greater thickness provides the necessary load-bearing capacity, while the second portion (web) with lesser thickness reduces overall weight. Each segment's thickness is optimized for its specific structural role.
Solution Approach 2:
Local quality ensures that greater thickness is applied specifically where load-bearing capacity is required (flange portions), while lesser thickness is used where it is sufficient (web portion). This localized material distribution achieves adequate strength with minimized weight.
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 results in lighter, cost-effective composite structural frame members with reduced material usage, lower transportation costs, and improved fuel efficiency, while maintaining or exceeding load-bearing specifications.
Implementation Method 1
attaching the first planar member, second planar member and third planar member together at respective side portions by induction welding
Implementation Method 2
cold-forming the composite intermediate product to form a composite structural fabrication member having a shape selected from the group consisting of C-shape, U-shape, or Z-shape
Data Source
AI summary
A method of making a composite fabrication member having a shape selected from the group consisting of C-shape, U-shape, or Z-shape by providing first and third planar members suitable to form bases of a composite fabrication member, providing a second planar member suitable to form a web of a composite fabrication member, uncoiling and passing through accumulators the planar members, aligning the planar members, attaching the first, second, and third planar members together at respective side portions by induction welding to form a composite intermediate product to form a composite fabrication member having a shape selected from the group consisting of C-shape, lipped C-shape, U-shape, lipped U-shape, Z-shape or lipped Z-shape.